In-depth reviews guided by a Pediatrician

Best Convertible Car Seat with Crash Tests of 2020

We contracted with the same crash test facility used by NHTSA to test the seats in this review. Here is the Clek Foonf getting ready for its crash test  complete with crash test dummy.
Friday October 9, 2020
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Searching for the best convertible car seat for your growing baby? We bought and crash-tested the top 17 convertible seats of 2020 to find the best. We conduct side-by-side tests over several months to determine the best in metrics like crash test performance, installation, ease of use, quality and more. We collect the details you need to choose the right car seat for your needs and your wallet. We purchase two of each car seat we review, one for crash testing and one for in-house testing, so you can trust that our results are unbiased and honest.

Top 17 Product Ratings

Displaying 1 - 5 of 17
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Best Overall Convertible Car Seat


Britax Emblem


Editors' Choice Award
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  • 5

$199.99
at Amazon
See It

78
OVERALL
SCORE
  • Crash Test 8
  • Ease Of Install - LATCH 8
  • Ease Of Install - Belt 7
  • Ease Of Use 8
  • Comfort / Quality 8
  • Weight / Size 6
Seat Bottom Width: 18.9 in | Rear-facing Passenger Weight Limit: 40 lbs
Better crash test results
Easy to use
Comfy
Harder to install using the vehicle belt
Pull to tighten LATCH

The Britax Emblem is a quality convertible seat with non-rethread height adjustment, push-button LATCH, and better comfort padding and fabric. This product has impressive crash test results that indicate a higher potential margin of safety.It is also very easy to use when compared side-by-side with the competition. The overall look and feel of the Emblem are better than most of the competition, and its self-contained design means it is easy to clean and looks good.

The Emblem has a manual LATCH strap unlike ClickTight versions, so it requires increased effort to install than some competing Britax options. Unless you have physical limitations that prevent pulling a strap, we don't feel it's a deal-breaker. We feel the Emblem is a top contender with better crash test results for a sensible price that includes easy to use features and an overall nice look and feel. Overall, the Emblem is an excellent convertible seat and one we'd recommend to a friend.

Read review: Britax Emblem

Best Crash Test Result


Graco Extend2Fit


Editors' Choice Award
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  • 4
  • 5

$200.00
See It

77
OVERALL
SCORE
  • Crash Test 9
  • Ease Of Install - LATCH 8
  • Ease Of Install - Belt 7
  • Ease Of Use 7
  • Comfort / Quality 6
  • Weight / Size 5
Seat Bottom Width: 19.6 in | Rear-facing Passenger Weight Limit: 50 lbs
Best crash test results
Rear-facing for longer
Reasonable price
Average quality
Harder to install with the vehicle belt

The Graco Extend2Fit has the highest score for crash test results with a combined head and chest sensor result that surpasses the competition. This seat also offers impressive results for installing with LATCH, which could translate to better safety as many real-world injuries are associated with installation errors. These results mean the Extend2Fit potentially provides an additional margin of protection over the competition we tested, making it the perfect choice for those who desire top safety results. Add to this that the Extend2Fit can potentially stay rear-facing for longer than the majority of seats (up to 50 lbs), and you have a delightful cocktail of features that creates a potentially safer environment.

The Extend2Fit isn't the highest quality, and it feels like it doesn't offer as much for comfort as similarly priced seats, so it might be less cozy for long distances. However, despite this concern, the Graco is an excellent choice for parents who want the very best crash test results and see value in the rear-facing safety potential over style and padding.

Read review: Graco Extend2Fit

Best Bang for the Buck


Evenflo Tribute LX


Best Value Award
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$69.30
at Amazon
See It

68
OVERALL
SCORE
  • Crash Test 8
  • Ease Of Install - LATCH 6
  • Ease Of Install - Belt 6
  • Ease Of Use 7
  • Comfort / Quality 3
  • Weight / Size 10
Seat Bottom Width: 17 in | Rear-facing Passenger Weight Limit: 40 lbs
Super inexpensive
Better crash test results
Narrower width
Lower quality
Harder to install

The Evenflo Tribute LX is somewhat of a dark horse compared to our usual Best Value choices as it isn't a high-ranking option. So, why did we give it an award? This product has the second best-combined crash test results out of all of the contenders in this review, and it sports the lowest price. This combination of factors makes it a standout option that proves it is a worthwhile contender for anyone on the tightest budget or looking for a potential second seat. The Evenflo has a price significantly lower than the competition, a machine washable cover, easy to use vehicle belt pathway, and one of the easiest buckles in the business. This product is also super lightweight at just over 9 lbs and is narrow at 17 inches. These factors make it one to consider if you need to carry a car seat regularly or need to fit multiple safety seats in a row.

While it doesn't meet the needs of every family, given the lower quality and lack of comfort features, we still feel it is a good option for the price and an excellent choice for parents with smaller funds who want something with better crash test results. Also, you may need to give more attention to installation to ensure it is spot on, given the installation performance we experienced. For us, it feels good to honor a seat that provides an additional margin of safety that almost everyone can afford.

Read review: Evenflo Tribute LX

Best for Easy Installation


Britax Boulevard ClickTight ARB


The Britax Boulevard ClickTight
Top Pick Award
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  • 5

$364.99
(4% off)
at Amazon
See It

80
OVERALL
SCORE
  • Crash Test 6
  • Ease Of Install - LATCH 10
  • Ease Of Install - Belt 10
  • Ease Of Use 8
  • Comfort / Quality 9
  • Weight / Size 5
Seat Bottom Width: 18 in | Rear-facing Passenger Weight Limit: 40 lbs
Foolproof installation
Easiest to use
Comfortable
Average crash test results
Higher Price

The Britax Boulevard ClickTight ARB has one of the highest overall results in our tests with perfect scores for both installation methods (LATCH and Belt) creating a practically foolproof installation car seat. Thanks to the innovative ClickTight and strap tightening system, this option almost installs itself with only a little human assistance. We love the non-rethread harness with ten height variations, seamless fabric, closed-shell design, and three layers of padding for baby's comfort over the long haul.

This product is not the best choice for those on a tight budget as it is one of the most expensive options in this review. It also isn't the best if you want the absolute best crash test results, as these are only average. However, the Boulevard offers impressive performance in most test areas, making it a potential choice if your budget allows. Given that some injuries are related to an incorrectly installed car seat, this Britax is a contender for parents concerned about proper installation, thanks to the stupendously easy ClickTight design.

Read review: Britax Boulevard ClickTight ARB

Best for Narrow Seat Width


Clek Foonf


Top Pick Award
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  • 5

$459.99
at Amazon
See It

76
OVERALL
SCORE
  • Crash Test 7
  • Ease Of Install - LATCH 10
  • Ease Of Install - Belt 9
  • Ease Of Use 5
  • Comfort / Quality 8
  • Weight / Size 5
Seat Bottom Width: 17 in | Rear-facing Passenger Weight Limit: 50 lbs
Easy installation
Comfortable
Additional safety features
Harder to use
Heavy
Expensive

The Clek Foonf is an innovative steel frame car seat that earns top marks for ease of installation using the LATCH method and has cool forward-facing rigid LATCH anchors. The Foonf is also fairly easy to install using the vehicle belt, and it provides impressive comfort and quality you can see and feel. This seat comes with a detachable angle booster, anti-rebound bar, steel frame (similar to a vehicle seat), and an adjustable headrest, which makes it an option parents and babies enjoy.

The Foonf is not cheap, so parents with a smaller budget will need to plan or consider other seats. It is also cumbersome, and you it's unlikely you'll want to move it regularly or travel with it. Despite these concerns, the Foonf brings a lot to the table and provides other safety features. This seat is a unique option we think lots of parents will love and one our founder and Mom-in-Chief, Dr. Juliet Spurrier, uses with her children. Dr. Spurrier loves the Clek's quality, finds it easy to use, and her kids love it.

Read review: Clek Foonf

Quality at a Good Price


Britax Allegiance


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$189.99
at Amazon
See It

77
OVERALL
SCORE
  • Crash Test 8
  • Ease Of Install - LATCH 8
  • Ease Of Install - Belt 7
  • Ease Of Use 8
  • Comfort / Quality 7
  • Weight / Size 6
Seat Bottom Width: 18.8 in | Rear-facing Passenger Weight Limit: 40 lbs
Budget-friendly
Better crash test results
Easy LATCH installation
Slightly more challenging to install with belt
Less padding for comfort

The Britax Allegiance is an affordable convertible seat that brings Britax quality together with a reasonable price tag. The Allegiance earned the second-highest score for crash test results with the best head sensor result. It is also easy to install using LATCH, which creates a seat with an additional potential margin of protection compared to the competition. This car seat is easy to use, making it an all-around great choice for families who want a straightforward, safe, easy to use car seat.

The Allegiance is somewhat harder to install using the vehicle belt over the LATCH system. With a score of 7 of 10, it isn't challenging, but it will require more attention to detail to ensure a secure fit. It also isn't the most comfortable, providing less padding and an unbolstered headrest. In our opinion, despite these minor flaws, the Allegiance is one we feel parents will love for everything it offers and its budget-friendly price. The Allegiance failed to win an award because of its similarities to the Britax Emblem and the small price difference. However, we believe it is a noteworthy and respectable choice that can save you some cash.

Read review: Britax Allegiance

Best for Quality


Nuna RAVA


Top Pick Award
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$500.00
List Price
See It

78
OVERALL
SCORE
  • Crash Test 8
  • Ease Of Install - LATCH 8
  • Ease Of Install - Belt 8
  • Ease Of Use 7
  • Comfort / Quality 9
  • Weight / Size 4
Seat Bottom Width: 19 in | Rear-facing Passenger Weight Limit: lbs
Top-quality
Better crash analysis
Easy to install
Heavy & wide
Expensive

The Nuna RAVA is a very high-end convertible product with plush comfort padding, a super soft fabric cover, and a very sleek look with quality construction and high attention to detail. The Nuna offers top performance in the comfort and quality metric and is easy to install no matter which method you need. We like the easy to use features on this seat and the better than average crash test analysis that indicates a potential margin of safety over the average seat in our lineup.

The Nuna is relatively expensive compared to the competition, making it a no-go for those on a tighter budget. It is also very heavy thanks to the added padding and sturdy frame that help it earn impressive results for comfort and quality. The weight means it may not be the best choice for frequent traveling or carpooling, as we think many parents won't want to lug this hefty seat very far for very long. In general, the Nuna is an exceptional quality seat with impressive scores in most metrics, and for families where budget is less of a concern and quality is a top criterion, the Nuna is one for your shortlist.

Read review: Nuna RAVA


Regular updates include new additional convertible seats ensure you get the latest information on the most popular car seats.
Regular updates include new additional convertible seats ensure you get the latest information on the most popular car seats.

Why You Should Trust Us


With six years and over 400 hours of convertible car seat analysis and crash testing under our belts, BabyGearLab is uniquely qualified to provide detailed information on convertible car seats and how each compares to the competition and the federal safety guidelines. Our panel of experts includes Dr. Juliet Spurrier, a Board-Certified Pediatrician, mother, and founder of BabyGearLab with a background in urgent pediatric care. Our in-house testing development was led by Certified Passenger Safety Technician, Bob Wofford. Bob assesses how to install each seat properly for the highest level of safety. In the beginning, we consulted with experts at the National Highway Traffic Safety Administration (NHTSA) about their protocol and crash test results. We contracted with MGA Research, the same national testing facility that has the compliance contract for FMVSS 213 assessing the safety of every car seat in the US. Each convertible car seat included in our review is crash tested according to the same crash test protocol used by the US Federal Safety Standards. We analyze the crash test data to generate our crash test scores, and we share the actual data from each seat's crash test, so you get the real data to make your decision.

Senior Review Editor, and mother of two, Wendy Schmitz, leads the analysis of the convertible car seat results as she has for the last six years. Wendy examines, compares, and rates each seat's specific performance against the competition.

Testing for the best convertible car seats of 2020 starts by purchasing two units of each product, one for crash testing with MGA, and another for extensive testing with over 200 hours of abuse and observations on seats from real-world parents and our in-house testers. We have a rigorous testing process that includes installing each seat in at least three different vehicles using both installation methods with multiple testers. We review each product's padding, covers, harness adjustments, and more.

Ten of the eleven top rated seats tested in our convertible car seat review (the Britax Boulevard ClickTight was absent on picture day).
Ten of the eleven top rated seats tested in our convertible car seat review (the Britax Boulevard ClickTight was absent on picture day).

We perform extensive tests on each seat over several months using a testing protocol developed for BabyGearLab by a National Highway Transportation Safety Administration (NHTSA) certified Child Passenger Safety (CPS) Technician. We developed a comprehensive set of tests based on our infant car seat testing process. We use these methods in conjunction with the crash test data, to determine how seats perform in everyday use and impact force measurements recorded during structured crash tests.

Several new convertible options were added to this review giving you more information on potential competitors than ever before.
Several new convertible options were added to this review giving you more information on potential competitors than ever before.

Each convertible car seat we test is compared to the competition, side-by-side in multiple metrics. While all of the safety seats for sale in the US meet the minimum safety guidelines outlined by the federal government, that does not mean that they are all easy to use, easy to install or provide an additional margin of protection compared to the other contenders.

Jump to: How We Tested Convertible Car Seats

The belt path for the Extend2Fit forward-facing configuration is harder to use because you can't see what is going on. Removing the cover for visibility is also challenging.

Analysis and Test Results


For our review, we provide the information you'll need to make an informed decision about which convertible car seat is the right selection for your little one and your wallet.

Rear-Facing Until at Least Age 2
Experts agree that children should remain rear-facing until at least two years old. The American Academy of Pediatrics (AAP) and NHTSA, recommend keeping your baby rear-facing as long as your chosen car seat allows, and at least until age 2. A study published in Injury Prevention in 2007 shows that the rear-facing position results in a 5.3 times lower risk of death or serious injury in a car accident compared to the forward-facing position for children age 1-2 years old. The Clek Foonf and the Graco Extend2Fit can both remain rear-facing until your child weighs 50 lbs. SO, no matter how tempted you may be to turn your child around, we encourage you not to do so, given the potential safety bump of facing backwards.

Jump to: Buying Advice for Convertible Car Seats


Value


There are potential budget-friendly deals in this group with value winners and lower-priced options. With several award-winning seats with relatively reasonable prices and better than average crash test results, you can find a convertible car seat with an additional margin of protection without emptying your wallet. The Evenflow Tribute LX and the Britax Allegiance both have 8s for crash test results and are included among the least expensive. The Graco Extend2Fit also sports an affordable price, has the highest crash-test result analysis in this lineup, and can stay rear-facing longer (a potential safety +). The Britax Emblem is also a good value. While it does cost a little more than the other value choices, it is less expensive than the average car seat in this review and is one of the best options.


Crash Test Performance


BabyGearLab contracts with the same crash test facility that the NHTSA uses to perform our convertible seat crash tests. The seats are tested using the same protocol as NHTSA based on the FMVSS 213 standard.


We performed a detailed analysis of the sensor data from each car seat's crash dummy to determine how they compare to the competition and the Federal standard.

More Money Doesn't Equal Safer
While you may think that a more expensive seat should be safer, this isn't necessarily true according to our tests. A great example are the Britax ClickTight seats that provide easy installation features with higher prices but didn't perform well during repeated crash testing. The cheaper Britax Emblem and Britax Allegiance both have better crash test sensor results than the ClickTight options proving price isn't indicative of potential safety. Another example is the Graco Extend2Fit with the best-combined sensor results with a list price significantly cheaper than the ClickTights.

So, what is the most critical information from crash impact tests when analyzing results?

  • The risk of head injury related to the HIC result
  • The risk of chest injury related to the chest clip (g clip) result

Shown above is the percentage margin by which each seat exceeded the maximum Head Injury Criteria (HIC) score established by the Federal NHTSA standard. The higher the bar  the better the margin of protection. (Click on the chart to enlarge).
Shown above is the percentage margin by which each seat exceeded the maximum Head Injury Criteria (HIC) score established by the Federal NHTSA standard. The higher the bar, the better the margin of protection. (Click on the chart to enlarge).

This chart includes the % below the maximum allowed HIC result of each seat we tested in this review. The further below the Federal HIC maximum of 1000 indicates a better result, so a taller bar indicates potentially better protection.

Shown above is the percentage margin by which each seat exceeded the maximum chest injury score  Chest (g) Clip  established by the Federal NHTSA safety standard. The taller the bar  the better the margin of protection. (Click on the chart to enlarge).
Shown above is the percentage margin by which each seat exceeded the maximum chest injury score, Chest (g) Clip, established by the Federal NHTSA safety standard. The taller the bar, the better the margin of protection. (Click on the chart to enlarge).

This chart is a review of the percentage below the Federal maximum Chest (G) Clip result (60) achieved by the seats we tested in this review (above). Taller bars incidate better results and a potentially higher margin of protection.

An analysis of auto crash injuries for children show that head and chest injuries are the two most significant risks of fatal or severe injuries.

All of the Products We Tested Provide a Basic, Safe Level of Protection
All of the car seats we test passed the Federal minimum safety standards. Therefore, every seat has at least the basic level of crash safety protection required by US Federal law. Our primary focus for crash test scores is to identify seats whose crash test performance exceed the Federal requirements by a wide margin. These car seats can be considered as providing an additional level of protection based on the data from their crash test sensors.

The rear facing Clek Foonf has a recline adjustment attachment and a anti-rebound bar  as well as an under the seat belt pathway that includes a belt lock off. It is the most innovative seat in the review and includes a rigid forward facing LATCH system.
The rear facing Clek Foonf has a recline adjustment attachment and a anti-rebound bar, as well as an under the seat belt pathway that includes a belt lock off. It is the most innovative seat in the review and includes a rigid forward facing LATCH system.

Additional Safety Features


Some seats have additional features that manufacturers claim will improve the seat's safety; we did not consider these features or claims in our crash test score analysis. Because manufacturers do not publish comparison test data for us to analyze, it is impossible to determine their efficacy. We understand parents are curious about side impact protection (SIP) or an anti-rebound bar (ARB). Still, we encourage you to proceed with caution when making a decision-based solely on these features. In the end, there is no way to tell what each manufacturer means when they use terminology that lacks an agreed-upon meaning (like SIP). This lack of information makes it impossible to compare seats with similar-sounding claims, especially without a universally agreed-upon language to describe what the claims genuinely mean.

We can confirm that our crash test results indicate that anti-rebound bars often, but not always, improve the crash test dummy sensors results in comparison to not using the anti-rebound bar. We like them as a safety feature, but we feel actual crash testing data is more important than stated features or claims.

Safety Reminder
How well a seat performs in a crash test environment means little if you don't install the seat according to the manufacturer's instructions. Poor installation or a poorly fitted harness can potentially result in injury or death in an accident.

Related: How to Avoid Infant Car Seat Installation Mistakes

Best Seats Based on Crash Test Analysis


We rated each seat compared to the competition using a 1-10 scoring system using crash test report analysis. The scoring helps quantify the products that offer an additional margin of protection, in our opinion, over and above the basic level of protection found in all of the seats.

The Graco Extend2Fit earned our best crash test rating with 9 of 10 thanks to excellent Chest Clip (g) and HIC scores. The Nuna Rava has similar sensor results earning an 8 of 10. While neither have the best score for either sensor, they do have the best combined scores of both Chest and HIC result. The Britax Allegiance has the best (lowest) HIC result for the group with a slightly better than average result for the Chest Clip; these results help it earn the second-best score in the group with an 8. The Britax Emblem, Evenflo Tribute LX, and Maxi-Cosi Pria 70 also earned 8s. The Clek Foonf has the best Chest Clip score in the group, but its HIC result is below average, which results in a crash-test score of 7.

The LATCH system of installation was designed to help parents install car seats safely every time. In general  it is considered the quickest easiest method of car seat installation
The LATCH system of installation was designed to help parents install car seats safely every time. In general, it is considered the quickest easiest method of car seat installation

Ease of Install Using LATCH


Studies show that more than 7 out of 10 car seats are installed incorrectly, or the harness is not fitted properly . As a result of these statistics, we feel ease of installation and ease of use are critical metrics when selecting a car safety seat as both can potentially impact overall safety.


The Lower Anchors and Tethers for Children (LATCH) installation method should make it easier to correctly install car seats, with fewer mistakes. For this reason, we recommend using the LATCH method whenever possible to increase the chances installing a seat correctly. Nearly all convertible car seats have the LATCH connectors, and most vehicles manufactured after September 1, 2002, offer the anchors on the left and right sides of the back seat. So, the good news is you should be able to utilize the LATCH method until your child outgrows the weight limit of the LATCH connectors (please see your safety seat user manual).



In our tests, we determined that some seats are easier to install using LATCH instead of the vehicle belt. However, surprisingly, about a third of the options are easier to install using the vehicle belt not the LATCH. The main problem? Some testers struggle to tighten the LATCH straps to properly secure the convertible car seat to the vehicle.

The Clek is the only seat in this review to offer a rigid LATCH system that makes installation very easy with no straps to tighten
The LATCH clips on the Boulevard are the simpler version that is somewhat harder to remove than the push button type that mimics a seatbelt.

The Clek Foonf (above left) uses a rigid LATCH connection for forward-facing installation. It is ridiculously easy and requires NO strap tightening. You push the rigid LATCH connectors onto the anchors, and that's it! The Clek Foonf tied with the Britax Boulevard ClickTight ARB for the highest score for LATCH installation as both products do not need manual strap tightening. The Britax Boulevard connectors (above right) are a clip style of LATCH that we feel is more challenging; the clip itself is harder to remove and requires twisting to remove them. The Evenflo Tribute LX has the lowest score in the group for LATCH installation with a 6 of 10.

The LATCH connectors on the Emblem have a one sides tightening strap which in our experience takes more strength to use than some of the unique LATCH straps with center connectors or self-ratcheting features.
The LATCH connectors on the Emblem have a one sides tightening strap which in our experience takes more strength to use than some of the unique LATCH straps with center connectors or self-ratcheting features.

Our favorite seat LATCH installation is the Clek because of the forward-facing rigid LATCH installation. The Britax Boulevard ClickTight ARB is also super easy, while the Britax Emblem (above) and Allegiance, and the Chicco NextFit are almost as straightforward. The Chicco NextFit has a unique LATCH design with a 2-step strap tightening system that is very easy to tighten that requires no extreme strength.

Center Seat Issues

The safest spot to install your car seat is in the center of the vehicle rear seatstudies of injury data show a 43% lower risk of injury if the car seat is in the center of the back seat. Combine this information with the knowledge that LATCH connectors should be the easiest and safest way to install a car seat. What's the problem? Most vehicles do not offer LATCH anchors in the center location. Even if the inner LATCH anchors from the side positions are close enough to use, most vehicle and seat manuals do not allow the use of these LATCH anchors for the center position installation.

If your vehicle doesn't allow the LATCH method to be used in the center location, then what is the best alternative? Should you use the center seat with a vehicle belt or the LATCH system on a side seat? One of the most critical aspects of seat installation is that you ensure the car seat is securely and tightly anchored to the vehicle.

The questions on center seat installation include:
  1. Should you install the seat with the vehicle belt?
  1. Is the seat as secure when anchored to the center seat with a vehicle belt as it is in the side position using LATCH?

Using the vehicle belt to install a car seat is a perfectly safe and acceptable method of installation (and potentially the only possibility for center seats), assuming you can ensure that the installation is secure and tight. If you can get a tight fit (and we did with many seats in our tests), then use the center seat. However, if obtaining a secure fit in the center seat is challenging, then you should move your safety seat to the side seat location. It is far more important that the car seat installation be correct than the actual location of the installed seat. If you have two children, you may not have a choice as many cars don't have enough room for a side and center installation simultaneously, and/or little ones often fight if they can reach each other. If your vehicle doesn't offer LATCH anchors for the center seat, but you prefer center seat installation, our tests on ease of installation with a vehicle belt can help you identify the options that are easier to install using the vehicle belt. Also, you can locate an installation professional for assistance using the vehicle belt if you feel unsure.

This Chicco NextFit has what the manufacturer calls "SuperCinch"  which is an alternative style of strap that uses a pulley type system that makes tightening the LATCH straps far easier than ordinary straps
This Chicco NextFit has what the manufacturer calls "SuperCinch", which is an alternative style of strap that uses a pulley type system that makes tightening the LATCH straps far easier than ordinary straps

LATCH Straps


The LATCH connectors and anchors are only part of the LATCH equation. Whether the straps are easy to tighten and loosen is also something to consider. As previously noted, the Clek Foonf doesn't have straps for forward-facing installation, and the Chicco NextFit has its "SuperCinch" method with a 2-step tightening system engineered to do the hard work for you.



The LATCH straps on the Evenflo Tribute LX are relatively easy to tighten, but we had some difficulty loosening the LATCH strap when trying to uninstall the seat. We gave more consideration to options that didn't require extreme strength or body weight to tighten the strap or struggle for a secure attachment.

The forward-facing installation of the Clek Foonf for kids over 2 years old using the vehicle belt is very secure feeling and easy to accomplish.
The forward-facing installation of the Clek Foonf for kids over 2 years old using the vehicle belt is very secure feeling and easy to accomplish.

Ease of Install — Vehicle Belt


No matter how or where you hope to install your new car seat, at some point, you must install it using the vehicle belt as LATCH connectors have weight restrictions that most children will outgrow. Also, many center seats don't have LATCH anchors, even though it is the safest location for seat installation. Most LATCH use weight limits are about 40 - 50 lbs of child weight before the seat requires installation using the vehicle belt only. Given that many of the products have a weight limit of 50-80 lbs, it is clear that most children will utilize the vehicle belt at some point.


Don't despair! We are going to tell you which seats are the easiest to install using the vehicle belt and provide information on correct installation or where to get help if you are unsure or something doesn't seem right.

Find a Child Car Seat Inspector
There is a fantastic FREE resource in the US that can help you learn how to install any seat in any car. There are certified Child Passenger Safety (CPS) Technicians available by appointment or on call. We highly recommend this service, even if you feel like you have installation dialed in.

The 2 part belt lock off on the Britax Roundabout required a screwdriver to pry open. It isn't as user friendly as some of the competition  but having a hard to use lock off is still better than not having one.
The 2 part belt lock off on the Britax Roundabout required a screwdriver to pry open. It isn't as user friendly as some of the competition, but having a hard to use lock off is still better than not having one.

The Benefit of the Seat Belt Lock-Off


Some seats are easier to install using a seat belt than competitors and most of these seats have a trick by way of a belt lock-off located on the seat. This feature is so useful, it is a game-changer for installing seats with a vehicle belt, and we believe you'll feel significantly more comfortable installing a seat using the belt if it has one of these nifty lock-offs.

Several seats in this review have a belt lock-off located on the seat; all with forward and rear-facing lock-offs. Interestingly enough, all of these seats ranked near the top and have the highest scores for installation using a vehicle belt. Only the Peg Perego Primo Viaggio Convertible scored as well without the help of an onboard lock-off. The Britax ClickTight car seats don't have traditional lock-offs, but the pressure of the seat bottom closure acts as a lock-off and prevents the car seat from sliding back and forth on the vehicle belt, something we often see in lock-off free seats.

Coincidence? We think not.

Some lock-offs work a little better than others, but even those that are challenging, still provide a more secure feeling installation in our tests than seats without a lock-off. We found that options with a lock-off were every bit as secure feeling when installed with a belt as they were with the LATCH (some even more so). This fact can be a relief when you need to install the seat with a belt, which is highly likely given the weight limitations of LATCH systems.

The forward facing belt path and belt lock off on the Clek are easier to use than the rear facing design
The Chicco belt lock off has two parts that overlap to secure the vehicle belt in place

We believe lock-offs can help a seat feel more secure, but some lock-offs are more straightforward. The Clek Foonf lock-off (above left) is super easy to use, even though you need to lift the seat bottom to access the rear-facing lock-off. The Chicco NextFit (above right) is also easy with a lock-off conveniently located on the outside of the shell.

We needed a towel for the rear installation of the Evenflo Tribute to obtain the proper angle of the seat. This seat is not that easy to install  but it does offer higher than average crash test results.
We needed a towel for the rear installation of the Evenflo Tribute to obtain the proper angle of the seat. This seat is not that easy to install, but it does offer higher than average crash test results.

In our tests, the Britax Boulevard ClickTight ARB is the easiest option to install using the belt thanks to the "ClickTight" installation method. All you need to do is lift the seat bottom, thread the belt across, remove the slack (don't tighten), and close the seat bottom until it clicks. The seat bottom tightens and locks the seat in place for you. The Boulevard earned a 10 of 10 for this installation.

The Clek Foonf is one of the easier seats in our tests to install using the vehicle belt. The lock-off works smoothly, and the belt is easy to thread. It earned a 9, which is better than the LATCH score of most competitors. The Britax Advocate ClickTight ARB is also easy to install using the vehicle belt, earning a 9.

Except for the Peg Pergo Primo Viaggio Convertible, the seats lacking a lock-off did not score as well as those with a lock-off. The Evenflo Tribute LX earned just 6 (the lowest result), but interestingly is still easier to install with the vehicle belt than using LATCH. The Chicco NextFit and the Peg Pergo Primo Viaggio Convertible earned 8s.

Having trouble finding the center seat belt?
Some SUVs, trucks, and wagons have a center seat belt located in the ceiling of the car.



The Emblem angle adjusts with an under seat handle that is easy to use but can be tricky one it is installed rear-facing.
The Emblem angle adjusts with an under seat handle that is easy to use but can be tricky one it is installed rear-facing.

Ease of Use


Convertible car seats have similar designs with what few obvious difference that are not cosmetic. However, the options do diverge in ease of use, with some being significantly easier to use than other contenders, thanks to extra features or better functionality of features like buckles.


The Ease of Use metric includes the functionality of everyday features, including harness adjustment and chest clips, ease of tightening or loosening the harness, and fabric cover removal for cleaning. If using your chosen option is challenging, you may not use it as the manufacturer advised, or you could end up chronically frustrated.

The buckle on the Evenflo Tribute LX is one of the easiest in the group to use. The sides pop out on their own when the button is pressed
The buckle on the Evenflo Tribute LX is one of the easiest in the group to use. The sides pop out on their own when the button is pressed

Buckles and Chest Clips


None of the buckle buttons in this lineup are easy to press with a simple thumb push. While buckles like the Evenflo Tribute and Maxi-Cosi Pria 70 were straightforward with sides that pop out with a push, others are so challenging you'll need two hands. Other buckles are stiff, but at least they don't require cussing to use.

The Chicco offers a unique chest clip that has two width settings. This feature made the chest clip harder to use  and didn't seem to improve its performance.
The Chicco offers a unique chest clip that has two width settings. This feature made the chest clip harder to use, and didn't seem to improve its performance.

The chest clip is where the harness comes together above the buckle, across the chest. The Graco chest clips are the most challenging to operate during testing, with clips that require excessive squeezing of buttons that hurt to operate. None of the seats provide exceptional buckles and chest clips, but the Britax seats are average for both and are easy to use which is a good combination. Because buckles are more challenging, it is best to focus on buckle use over the chest clips.

The Chicco NextFit has a unique chest clip with a two-setting adjustment for a more customizable fitting. While this design is interesting, we think it makes the clip's operation significantly more challenging. The Cybex Sirona M with SensorSafe 2.0 also has a unique chest clip that includes SensorSafe technology that relays a variety of different information to a device connected to the car and your smartphone. While also an intriguing device, it emits EMF, and each parent will need to decide if this feature is compelling enough to expose your child to EMF.

The harness release button  and tightening strap on the Graco MyRide 65 LX are both located near the foot of the seat and they are the easiest ones in the group to use.
The harness release button and tightening strap on the Graco MyRide 65 LX are both located near the foot of the seat and they are the easiest ones in the group to use.

Harness Tightening and Loosening


Each seat has a harness tightening strap and a harness release button to loosen the straps. Some of these were harder to pull than others, and the buttons also vary in style and ease of use. The Britax Boulevard CLickTight ARB has the highest score for tightening and loosening. The Clek Foonf and Evenflo Tribute are also easy to use. None of the seat's in this review have straps or buttons that are impossible to use.

The Boulevard has an easy to adjust  non-rethread harness height adjustment that work smoothly and is easy to operate.

Adjusting the Harness


There are primarily two methods for adjusting the harness height on convertible car seats. The simplest method is a non-rethread style that involves moving the headrest/harness shoulder strap assembly up and down (above left). The more convoluted design includes removing the shoulder straps from a splitter plate on the back and physically moving the straps from one slot height on the seat back to thread them through different slots (above right). While this method isn't particularly hard or frustrating, it takes more time, requires you to remove your child from the seat for access, and if the car seat is forward-facing, you may need to remove the seat from the car to reach the splitter plate. Alternatively, the non-rethread method adjusts quickly with your little one in the seat as soon as you notice there is a need. We prefer the non-rethread style because it is simple, and we think busy parents will be more likely to keep the harness properly fitted if they can accomplish this quickly without removing their child from the seat. With the rethread style we worry parents will put off adjusting the harness when it needs it because it requires an empty seat and takes more effort. Given that injuries can occur when a harness is not fitted properly, we prefer non-rethread assemblies.

The harness height adjustment on the Peg Perego Primo Viaggio has an easy pull tab to operate with no rethreading of straps necessary. This is one of the easiest adjustment options in the review.
The harness height adjustment on the Peg Perego Primo Viaggio has an easy pull tab to operate with no rethreading of straps necessary. This is one of the easiest adjustment options in the review.

Almost half of the car seats in our review have non-rethread harness adjustment methods. The simplest are the Britax Marathon ClickTight, Britax Boulevard ClickTight, Britax Advocate ClickTight, Britax One4Life ClickTight, Nuna Rava, and Cybex Sirona M with SensorSafe 2.0 which all have smooth moving harness assemblies. The Britax Emblem and Britax Allegiance are also straightforward and simple. Unfortunately, during testing, the Maxi-Cosi Pria 70 height assembly broke and would no longer engage on its own. We had to manually engage the assembly during testing. However, in the real world, any seat would need replacing if something breaks. We aren't saying they all break, just that the seat we purchased did with minimal use in a short period. The rethread style takes more time and is more involved.

LATCH Storage


LATCH storage isn't as crucial for convertible seats as it is for infant carriers whre they can inhibit carrier connection to the base. However, it is useful if the straps aren't readily accessible to the passenger and can't result in potential injuries floating loose around the car seat. Some options have designated pockets for LATCH clips, while the most common storage method includes attaching the clips to points on the shell or to each other.

The LATCH storage are hard plastic pockets on the each side of the Chicco seat base. They are a little awkward to get the anchors into correctly  but they work well once they are properly in place
The LATCH anchors on the Safety 1st stow by connecting to each other

The Chicco NextFit (above left) has useful pockets to stow LATCH components and the tether. It is one of the few seats we tested that actually retains the straps and clips. The Peg Perego Primo Viaggio Convertible, Britax Boulevard ClickTight ARB, Britax Advocate ClickTight ARB, and the Clek Foonf also feature clip storage retention that works well. The least useful storage type are clip attachments on the seatback (above right) that leave straps dangling and accessible to children.

The Evenflo Tribute LX is a very basic seat with the lowest price in this review. The low price translated to disappointing scores for comfort and quality  but the fabric is easy to remove and clean.
The Evenflo Tribute LX is a very basic seat with the lowest price in this review. The low price translated to disappointing scores for comfort and quality, but the fabric is easy to remove and clean.

Cover Removal and Cleaning


Kids' car seats undergo a significant amount of messy action and will require regular cleaning in one way or another. For this reason, we test how difficult it is to remove the fabric covers for washing. We prefer covers that are machine washable and easy to remove. We like hand washing methods over those that are spot cleaning only, but because there is a high potential for throwup, spit-up, and poopy blowouts, it really is ideal to have a machine washable cover you can remove quickly. The Clek Foonf is the only option in our review that doesn't provide a removable cover; it is spot clean only, and while you can purchase a cleaning kit from Clek, you will likely require a steam cleaner for bigger messes. The Evenflo Tribute LX is a top-performer for removing the cover and straightforward, parent-friendly cleaning. This straightforward cover removes quickly, is machine-washable and dryable, and fits back on the shell without a hiccup. This clean-up process is far better than the majority of contenders that often include handwashing and air drying, such as the Britax ClickTight four-part cover.

The Peg Perego cover and padding envelope the seat and curl around the shell and frame for an overall nice fit and finish.
The Peg Perego cover and padding envelope the seat and curl around the shell and frame for an overall nice fit and finish.

Comfort/Quality


For comfort and quality, we consider materials and overall construction. We compare padding, fabric, foam, and how well they come together. We consider how the design of each seat contributes to a baby's potential comfort, parent use, and durability.


The seats all have similarities like a plastic shell, impact foam, comfort padding, and a fabric cover. However, some offer significantly thicker padding, softer or more durable fabric, steel frames, or foam that doesn't off-gas. Because this is somewhat subjective, the seats are compared side-by-side and ranked in relation to the competition.


The Chicco NextFit (above left), Nuna Rava, Britax One4Life ClickTight, Britax Advocate ClickTight ARB, Britax Marathon ClickTight ARB, and the Britax Boulevard ClickTight ARB are top for comfort and quality. They each offer additional padding with well-fitted fabric and considerations for everything. The Chicco fabric is softer, and the seat is sleek without a lot of useless nooks and crannies. Alternatively, the Evenflo Tribute (above right) is basic and functions well despite the lack of additional features and details with a more unfinished look overall. However, it has a machine washable cover and a better crash-test analysis than many competitors. The Clek Foonf, Clek Fllo, Britax Emblem, and the Peg Perego Primo Viaggio Convertible also offer impressive features for comfort and quality.

The Maxi-Cosi weighs over 18 pounds and is the widest seat in the review at 21 inches. This makes it a bad choice if you want to sit multiple seats in one row or if you need to have 2 seats and one person in the row.
The Maxi-Cosi weighs over 18 pounds and is the widest seat in the review at 21 inches. This makes it a bad choice if you want to sit multiple seats in one row or if you need to have 2 seats and one person in the row.

Weight/Size


We measure the weight and width of each car seat in the group, including the forward-facing and rear-facing configuration weight and the width at the widest point, as these can vary. While the seat weight is potentially not as critical as the carrier weight of an infant seat, it can be important if you regularly travel or need to use public transportation (like Uber or Lyft). If your car seat remains in your car for the most part, then weight may not be an issue.


The Clek Foonf is the heaviest option in the review, with a rear-facing configuration of over 38 lbs using the anti-rebound bar and angle attachment; the forward-facing version is over 33 lbs.

The Clek weighs over 38 pounds in the rear facing configuration and closer to 33 for forward facing. The weight difference is the angle adjustment pad and the anti-rebound bar
The Evenflo is the lightest seat in the group and one of the most narrow at just over 9 pounds and 17 inches

However, the Clek Foonf (above left) is one of the narrowest options at only 17 inches, which means you might be able to use three safety seats across your back seat or two and an adult. The Evenflo Tribute (above right), is also only 17 inches wide, but it is the lightest seat in the review at just over 9 lbs. The Evenflo, Clek fllo, and the Clek Foonf are the narrowest options in our tests. Unfortunately, the Evenflo required a towel in our rear-facing tests in at least one of our test vehicles, so you'll need to bring something to use a bolster depending on the car when traveling (see the user manual). Most of the top seats are more substantial, presumably as a result of increased padding and steel (or alloy) frames. Many of the top-scoring seats weigh over 20 lbs. The widest option in the group is the Maxi-Cosi Pria 70, and we think it will be impossible to use it with more than two car seats in a row in the majority of vehicles.

This buying guide section is designed to help parents assess and filter the variety of convertible car seats on the market by guiding what you should look for in a car seat and why.

Regular updates include new additional convertible seats ensure you get the latest information on the most popular car seats.
Regular updates include new additional convertible seats ensure you get the latest information on the most popular car seats.

Why Buy a Convertible Car Seat?


While we feel parents should purchase and use an infant car seat while your baby is small, you will need to acquire a convertible option after baby outgrows their infant style seat. This change happens when the baby reaches somewhere between 9-12 months of age, depending on your particular car seat and how fast your baby grows. We suggest you keep your baby in their infant seat until they transition in the 9-12 months' age range or as their height starts to push the infant seat's maximum length. You should check weight capacity too, but more often than not, it is the height limit that will force the switch to a convertible seat.

Height and Weight Limits


Most of the seats in this review claim to be suitable for children from 5 lbs up to 40-80 lbs and height of 40-57 inches tall depending on the seat. However, we think the design and features of an infant seat are better suited for younger babies, and parents should avoid convertible car seats until their baby reaches at least 9 months or has exceeded the maximum height or weight limit for their infant seat (height being more likely).

Choose a Seat that Lets Your Baby Stay Rear-facing Longer


Studies have shown that keeping children rear-facing longer is much safer than switching them to forward-facing. The longer a seat can sit rear-facing, the better. All of the options in this review can remain rear-facing until the baby is at least 40 lbs, with two seats offering a 45-pound limit. The Clek Foonf and Graco Extend2Fit both work rear-facing up to 50 lbs (a big selling point for these products).

Experts Recommend Remaining Rear-facing Until at Least Age 2
A study of 15 years of traffic injury data published in 2007 about Injury Prevention concluded that placing children age 1-2 years of age in the rear-facing position resulted in 5.3 times lower risk of death or serious injury compared to a forward-facing position. Please keep your baby rear-facing as long as possible.

So, are the specifications for the car seat's rear-facing capacity a concern? Or, are the front-facing limits more critical? Well, both are important, but if we had to pick one, we'd choose the rear-facing limit given the significant increase in potential safety of children sitting rear-facing. The longer a child can sit rear-facing, the better. Even if your child needs to scrunch their knees and have less legroom, it is still safest to be rear-facing as long as they are within the height and weight requirements of the seat.

Height Limits Typically Matter Most


A general rule of thumb for these seats is that many children might reach the height limit before the weight restriction. However, this is not a hard and fast rule, so parents should keep in mind the limits on their seat concerning the growth of their child as both are equally important in keeping children safe while riding in a vehicle.

Types of Car Seats


There are primarily two types of car seats, the infant car seat, and the convertible car seat. Both options work with infants, and they have similar features and functionality, but they are not the same. There are pros and cons to type, and we explore that in more detail in our infant car seat review (especially why we feel convertible seats are not appropriate for infants). However, all parents will need to use a convertible seat at some point.

Despite the manufacturer marketing that allows for the use of convertible seats for infants as small as 5 lbs, we think you should wait to use them until after your baby has outgrown their infant style seat. While parents might want to cut corners and save money by limiting the amount of baby gear they purchase, we do not think your child's safety seat is the right place to cut corners. We strongly recommend the purchase of an infant and a convertible seat.

The Safety 1st onBoard 35 Air
These photos show an infant car seat (above left) and a convertible style seat (above right).

Infant Car Seats


  • Separate Bases/Detachable Seats — An infant seat has a carrier portion that can detach from the base that remains in the car. The carrier can be used to carry baby from one place to another and clicks onto the base for vehicle travel. Being able to transport baby from place to place while leaving the base in the car gives parents increased freedom and allows the baby to remain sleeping while parents run errands. These carriers can also be attached to a compatible stroller for more convenience on the go. Many modern strollers offer car seat adapters, or you could try a car seat frame stroller. We find being able to click the carrier into a stroller the easiest choice.

  • Canopy
    The B-Safe 35 has a very nice looking canopy
    Infant car seats traditionally offer a canopy to block the sun and other elements. Conversely, convertible seats don't have sunshades, and parents should not create one on their own for safety reasons.

  • Lower Weight and Height Restrictions — Even though some of the infant seats will work up to 40 lbs, their range is still smaller than the convertible car seat that often works from 5-65+ lbs depending on the product. This limited weight range is a result of the carrier being specifically for little bodies, as opposed to a design that tries to work many sizes without fitting any of them well. It is this factor that makes an infant seat perfect for newborns and younger babies, and the type of car seat we recommend for infants.

The Allegiance is a convertible car seat with better than average comfort and quality.
The Allegiance is a convertible car seat with better than average comfort and quality.

Convertible Car Seats


We recommend that babies transition from an infant car seat to a convertible seat at about 9 to 12 months old or when they reach the height or weight limitations of their infant seat. The term "convertible" derives from the seat's ability to be used in a rear-facing position and then "convert" to a forward-facing seat for older/larger children. Being able to use a convertible seat with an infant may tempt you into considering a convertible option as your only car seat, but we urge you not to take a "one and done" approach to car seats.

BabyGearLab Recommends Infant Specific Car Seats for Infants
We do not recommend using a so-called "all-in-one" car seats, which are specified to support a wide range of ages, in some cases from infants to pre-teen kids. We believe that infant car seats are the best choice for newborns because they are more convenient and provide a design specifically with smaller bodies in mind. This type of seat fits infants better, including positioning them better for breathing and sleeping safely. We recommend switching from an infant seat to a convertible seat at 9-12 months or when the baby outgrows their infant seat, as identified in the owner's manual. Similarly, we prefer convertible seats (designed more specifically for the 9+ months age range) over the "all-in-one" seats, which may attempt to span from infant to pre-teen booster seat range.

The Clek Foonf
The Clek Foonf

Know the Basics


While all the seats available for purchase in the US meet or exceed Federal safety requirements, they are not equal in their crash test results, design, ease of use, or functionality. We will cover the features and performance metrics commonly considered when looking at different seats.

Crash Tests


As you might expect, crash test results are a key metric in the performance of car seats, and thus help differentiate between products. Every car seat must be able to pass a Federal crash test safety standard, with random products chosen by the National Highway Transportation Safety Administration (NHTSA) for testing each year. Each selected seat goes through crash testing in a facility that is designed to simulate actual head-on collisions using a crash sled seat and crash test baby/toddler dummies. These tests collect data generated by G-force sensors located in the test dummies that measure and record the amount of force exerted on the dummy baby's head and chest. This test is a 30 mile an hour crash simulation.

We work with the same testing facility as NHTSA to run the same simulated crash tests for each seat we review for comparison purposes. For each crash test, there are sensors in the head and chest of a crash test dummy buckled into a car seat and placed on the "sled." The sled is used to simulate the forces in an actual car crash, and the sensors record the forces on the "child's" body during the simulated crash. We used a forward-facing Hybrid III 3 YO Part 572 P dummy (3 year old test dummy) in our commissioned crash tests, because NHTSA crash injury studies have shown that the risk of injury is higher when children are forward-facing, and the heavier 3 yr old test dummy provides a more strenuous test of the seat's ability.

Understanding the Head Injury Criteria (HIC) Score


The Federal safety standard developed by NHTSA uses a factor for scoring called the Head Injury Criteria (HIC) score. This score is the likelihood of injury arising from an impact presented measurably. All of the seats must obtain a HIC score of 1000 or lower to pass the Federal requirements. The further a score is below the Federal HIC maximum of 1000, the better it performed (similar to how a lower score in golf is better).

When analyzing crash test results, we ranked seats by the percentage that each result is below the NHTSA maximum of 1000 HIC (above). We focused on how large a margin of protection each product offers below the Federal maximum 1000 HIC. One could consider the car seats with lower HIC scores as providing an additional margin of protection compared to the competition.

Understanding the Chest (g) Clip Score


The same crash dummies include sensors in the chest region to measure impact forces in the chest. The results from the chest sensors are used to calculate the Chest (g) Clip result, which is the value that attempts to measure the likelihood of injury to the heart, lungs, and other organs located in the chest. To pass the Federal safety requirements, all of the seats must achieve a score less than 60 for the Chest (g) Clip (once again, lower numbers are better).

We looked at the percentage below the Federal maximum Chest (G) Clip score of 60 that was achieved by each seat in this review (above). As we did with the HIC scores, we focused on how large a margin of protection each product provided below the score of 60, Federal maximum Chest (G) Clip score. Seats further below the Federal maximum chest score have a more significant percentage difference, and one could consider them as potentially providing an additional margin of protection.

We contracted with the same national testing facility used by the National Highway Transportation Safety Administration (NHTSA) for crash tests  and also obtained NHTSA's crash test data for analysis. Above you see the Phil and Teds Alpha seat on the test sled with a 12 month old crash test dummy strapped in.
We contracted with the same national testing facility used by the National Highway Transportation Safety Administration (NHTSA) for crash tests, and also obtained NHTSA's crash test data for analysis. Above you see the Phil and Teds Alpha seat on the test sled with a 12 month old crash test dummy strapped in.

The good news is the Federal requirements ensure that all the seats sold in the US provide at least a minimum level of protection. Therefore, all the products available for purchase can be considered safe.

While each seat meets the minimum Federal safety requirements, some have managed to pass the tests with better results than the others. In our review of convertible seats, you will see that we have combined crash test data we commissioned with similar data obtained from crash tests commissioned by NHTSA. The tests run in the same manner, at the same facility, so we can analyze them side-by-side to demonstrate how each seat compares to the others and the Federal Maximum for allowable G-forces.

Some seats performed better in crash tests, so we gave higher scores to those seats with the assumption that they offer an extra margin of protection based on crash test results. We believe this matters and deserves to be a factor parents consider when deciding which seat to purchase.

Proper Installation
It is not adequate that you purchase and use a car seat. You must install and use the seat according tothe manufacturer guidelines to help ensure safety. Injury or death can potentially happen if there is an auto accident and the car seat installation or the child restraint adjustments are not correct.

We like the way the seat fabric on the Clek is tucked into the shell offering a smooth transition and sleek look
The Roundabout has the EPP foam that we prefer because it is more environmentally friendly and doesn't off gas
This Peg seat uses EPS foam for energy absorption during a crash

Side Impact Protection (SIP) Claims: Buyer Beware


The photos above show a few of the side impact features marketed by the manufacturers of some of the seats in this review. In order from left to right, they are the Clek Foonf with a steel frame for additional SIP, and the Peg Perego Primo Viaggio Convertible that claims "adjustable" SIP.

Because there is no agreed-upon definition of what SIP means, we aren't sure exactly what all of the claims actually mean, and little information is provided to support or explain what each manufacturer is claiming when they say they provide SIP. Clek Foonf offers more information and transparency on their website than any other we could find, including video and results of their side-impact crash tests. However, overall, transparency concerning SIP is surprisingly lacking across brands and several brands don't bother to define what it means at all, leaving parents to guess.

Today, there is only a suggested plan for a potentially regulated side impact protection (SIP) testing. However, for now, there is no regulation testing or common language agreement that determines what to test, how to test it, how to interpret test results, or how companies should define what SIP means, or what kind of claims they are allowed to make. All of the products in this review claim SIP in the design of their seat or testing, but the term itself is somewhat ambiguous and vague, as it means something different depending on the manufacturer. For example, Maxi-Cosi cites independent tests they paid for to determine the efficacy of their design in the case of a side collision. While Graco also claims independent testing for SIP, but their definition and test results only cover keeping your child contained in the harness in the event of a side collision. We believe most parents assume that keeping a child retained in the seat by the harness is an essential function of a car seat as opposed to an additional unique SIP feature. Therefore, we suggest that consumers remain skeptical about any SIP claims given that there is no set standard on what it means or how one claim compares to another. If you have a real interest in or concerns about SIP, we encourage you to question the meanign and ask for a definition and evidence before spending more money for a vague claim.

The ARB like the one seen here on the Marathon ClickTight ARB is supposed to limit or prevent car seat rotation that can happen during a crash.
The ARB like the one seen here on the Marathon ClickTight ARB is supposed to limit or prevent car seat rotation that can happen during a crash.

Bouns safety features are always great, and we welcome useful and tested safety improvements. However, we think you should be aware that there seems to be some "Safety Washing" happening in the car seat industry concerning the marketing of side impact protection and other features that claim additional protection. Given that there is no industry standard for SIP and other features, and all the manufacturers seem to mean something different, it results in words that have no meaning in and of themselves. This issue requires that parents research to determine what manufacturers mean, whether their design or unique feature has undergone testing, and what the tests include. That is a big responsibility to dump on parents, and often the information is not available or accessible (trust us, we spent a significant amount of time looking and asking).

We feel manufacturers use SIP and other safety features as a marketing tool to increase interest in their products. We'd like to see an agreed-upon standard for these claims that force manufacturers to focus on engineering designs that provide value and that parents can easily compare in an apples-to-apples manner. To determine what manufacturer's mean by SIP and other safety features and their testing process (if any), we tried to find compelling information or evidence related to their claims. We failed, which means we can't compare the features or even discuss them with clarity.

For the time being, we came up short in our efforts to find credible information or evidence to support the claims.

The honeycomb base on the Boulevard is designed to help absorb impact forces in the event of a crash.
The honeycomb base on the Boulevard is designed to help absorb impact forces in the event of a crash.

Forward Facing Crumple Zone


The Clek Foonf claims to have a forward-facing crumple zone designed to help absorb the impact of a collision to help protect the child in the seat. It is the only product in the review that has this kind of design or makes this sort of claim; they are also one of the few to post their testing results online for transparency. The Britax seats all claim an "energy-absorbing base," with something they call "safe cell." This feature may be similar to the Clek claim, but once again, without an agreed-upon definition of terminology, it is hard to say what each means or if and how testing was done to support the claim. They also don't supply any information on their testing process or how the safe cell options compare to those without the feature. We have no way of knowing how well these features work, or if they work predictably in an actual crash scenario as opposed to a simulated crash test.

The Britax Emblem has an alloy frame you can see in this photo.
The Britax Emblem has an alloy frame you can see in this photo.

Seat Construction


Every seat consists of similar kinds of materials and basic design with a few standouts and variations. The majority of the seats have a hard plastic outer shell with a dense foam padding as the second layer. A few of the seats also have metal frame components or features that offer increased shell stability that potentially improve seat performance in the event of a crash (though this is difficult to prove in standard tests). The final component is primarily for comfort and includes a layer of padding and fabric that gives the seat its overall look and helps position the baby properly in the seat. Many seats also offer an infant insert pillow. This insert is a positioner that helps smaller bodies fit properly in the seat and within the harness. The insert fits above the fabric cover and is removable when your baby grows bigger, or it is no longer needed. Some of the seats also offer padding or "head wings" around the head area. Presumably, this is for impact protection and possibly comfort; some manufacturers explicitly state this is the purpose of the wings, while others refrain from saying anything outright. The lack of manufacturer clarification makes it difficult for us to tell if the feature is intended to truly improve safety, or give the illusion of improving safety.

We believe that the differences in seat construction that matter are those that reflect in crash test performance, as well as those that impact baby's overall comfort.

The back of the Chicco plastic shell is smooth and easy to clean. It has a middle storage compartment for the tether strap that keeps it out of the way nicely
The back of the Chicco plastic shell is smooth and easy to clean. It has a middle storage compartment for the tether strap that keeps it out of the way nicely

External Shell


The external hard shell is the first line of defense in an accident, as it provides structural support and contains the energy-absorbing hard foam molded to the inside. The construction and design work similarly to a bike helmet, by using an exterior hard plastic shell combined with a layer of energy-absorbing hard foam placed between the shell and your head.

Foam


There are two basic kinds of foam in a typical convertible seat.

The Graco has a thick layer of EPS foam in the head region of the shell for energy absorption in the event of a crash
The Emblem uses EPP foam for impact absorption. This type of foam does not off-gas and is somewhat more flexible than the traditional EPS foam.
  • Hard Foam — In our review, every one of the convertible seats has foam as their primary energy absorbing material which helps keep your baby safe in a crash. This foam is either made of Expanded Polystyrene (EPS) (above left) or Expanded Polypropylene (EPP) (above right). EPS is the more common type and is somewhat of the industry standard and found in the majority of seats we tested. Alternatively, the Britax seats use EPP foam. We like the EPP better and feel it has a slight edge over EPS because it is somewhat forgiving when bent or pressed on, where EPS will break or deform, and it doesn't off-gas like EPS, which we prefer. The EPS foam, comparable to the foam found in most bike helmets, is common for impact protection applications. The greater difference between seats is how much foam they have and where it is inside the shell of the seat. A few seats have foam inside the entire shell, while others had more foam in the torso and head region with little to no foam in the bottom of the seat.

The manufacturer of the Maxi-Cosi claims the headrest on the seat provides additional side impact protection  but it is difficult to know what this means exactly
The manufacturer of the Maxi-Cosi claims the headrest on the seat provides additional side impact protection, but it is difficult to know what this means exactly
  • Soft Foam — We tested some seats that provided a softer foam around the head portion of the seat. A good example of this is the Chicco NextFit or the Peg Perego Primo Viaggio Convertible, which both offer a significant amount of additional soft foam around the head area. Soft foam doesn't offer much regarding impact protection in a crash, but it does offer extra comfort in everyday use. Alternatively, the Maxi-Cosi Pria 70 has a soft foam head pad surrounded by a plastic bag they call "Air Side Impact Protection." The manufacturer claims this feature tested has been tested by an independent lab to determine its ability to decrease injuries related to side-impact crashes. However, this type of functionality is not the norm, and most of the soft foam on seats are either for comfort or to mimic the look of impact resistance.

Anchoring the Car Seat


There are two different methods used to secure a car seat in a vehicle. We will provide you an overview of each, including the most common reasons to use one over the other, or when you might need to use one over the other based on manufacturer guidelines. You can find more information about installation in our article, How to Avoid Infant Car Seat Installation Mistakes.

Read Your Vehicle User's Manual
To properly install your car seat, you need to read not only the car seat user's manual but your vehicle user's manual as well. Why? The vehicle manual is the overriding authority on how to install the car seat and supersedes the car seat manual if the two directives conflict. The vehicle manual is especially important when determining how to install a car seat based on your child's weight. Some car seats require a change from LATCH anchors to seatbelt installation when your child reaches a certain weight. However, your vehicle manual will also have limitations on how much weight can be attached to the LATCH anchors. So if your car seat manual says the seat can be installed using LATCH up to 60 lbs of child weight, but your vehicle manual shows a limit of 50lbs, then you must switch to the seatbelt installation at 50 lbs, not 60.

This diagram showing LATCH system lower anchors appears in Graco's car seat manual. Unlike most other manufacturers  Graco documents in their manual that their seats can be LATCH-connected in the center position so long as your Vehicle Owners Manual allows use of the center seating position and the anchor spacing is 11" or greater between the inner LATCH connectors on the left and right side. Unfortunately  most car manufacturers don't allow the use of the inner LATCH anchor points to place a seat in the center.
This diagram showing LATCH system lower anchors appears in Graco's car seat manual. Unlike most other manufacturers, Graco documents in their manual that their seats can be LATCH-connected in the center position so long as your Vehicle Owners Manual allows use of the center seating position and the anchor spacing is 11" or greater between the inner LATCH connectors on the left and right side. Unfortunately, most car manufacturers don't allow the use of the inner LATCH anchor points to place a seat in the center.

  • Installation using LATCH connectors — Beginning in 2002, the majority of cars in the United States have the mandatory LATCH (Lower Anchors and Tethers for CHildren) on the left and right rear seat positions (not the center seat). This type of connection was created to provide a more straightforward method of attaching car seats to vehicles. We recommend using LATCH when it is available since it is usually the best and easiest way to ensure a tight, secure connection.

Rear facing installation of the Clek using the vehicle belt is almost as easy as the LACTH  with both requiring use of the same belt path
Rear facing installation of the Clek using the vehicle belt is almost as easy as the LACTH, with both requiring use of the same belt path

  • Installing with a Seat Belt — You can install all the seats using the vehicle seat belt through the designated pathways provided on the seat. Some products have a built-in lock-offs while others do not. We found the lock-off usually makes this process easier. Only a minority of vehicles offer LATCH connectors for the vehicle center seat, so a seat belt might be your only option if you want to use the center seat. Also, once your child reaches a certain weight, the seat belt installation often becomes your only install option, as the LATCH system will become unsafe due to the combined weight of baby and car seat (see tip above).

Vehicle center seat installation is worth considering:
Placing the car seat in the center position can reduce injury by more than 40% compared to installing the seat in a side location.

During our installation testing, we found significant differences between car seats regarding ease of installation with a seat belt depending on the vehicle we were using. Parents who plan to use this location exclusively may want to install their seat of choice in this position to ensure that a good fit is possible before choosing to keep it (Amazon has a great and easy return policy).

The forward-facing installation of the Clek Foonf for kids over 2 years old using the vehicle belt is very secure feeling and easy to accomplish.
The forward-facing installation of the Clek Foonf for kids over 2 years old using the vehicle belt is very secure feeling and easy to accomplish.

Both methods of installation are possible whether the seat configuration is rear-facing or front-facing. Depending on the laws in your area, children need to be restrained rear-facing up to a certain age or weight range. We recommend you keep children rear-facing as long as possible (within the guidelines of the seat) because it is safer for children in the event of an accident. The choice of how to install is somewhat up to you and what works best for your car, but all seats will eventually need seat belt installation because the LATCH method has weight restrictions.

To find the right angle for installation the Graco has a rolling ball level that needs to be in the green zone for proper installation
To find the right angle for installation the Graco has a rolling ball level that needs to be in the green zone for proper installation

Level Indicators


Each seat we tested has a level indicator to help parents confirm when its installation angle is correct. While they don't all look or function the same, they all provide similar information and guidance.

The level indicator on the Safety 1st is a red line located on a sticker on the side of the seat
The level indicator on the Primo is a line on the side of the seat that should be parallel with the ground when installed correctly
The bubble level indicator on the Chicco is easier to use than the line indicator on most of the competition.
The photos above show different level indicators we found on the seats we reviewed; in order from left to right: Safety 1st Alpha Elite 65, Peg Perego Primo Viaggio Convertible, and the Chicco NextFit.

Some level indicators are plastic molded lines on the seat, or a line on a sticker stuck to the shell side. The level line should be parallel to the ground after installation, and it is best to observe by standing back from the vehicle. Some indicators look more like a traditional level you'd find in construction with liquid and a bubble, or a small ball that rolls inside a plastic casing that indicates the seat is installed at the correct angle range when it falls within a pre-marked area in its path. Parents must use the level as instructed in the user guide with their product.

The Boulevard has an easy to adjust  non-rethread harness height adjustment that work smoothly and is easy to operate.
The Boulevard has an easy to adjust, non-rethread harness height adjustment that work smoothly and is easy to operate.

Shoulder Height Adjustment


Adjusting the shoulder height of the harness on a car seat may not sound like a big deal until you have to do it. Being able to alter the harness quickly and easily means your child will be using a correct fitting harness at all times. Avoiding changing the harness height because it is convoluted or difficult to operate could lead to improper restraining in the seat. Not using the harness or seat correctly could lead to injury or possible death in the event of a crash, so this is an important feature to consider on any seat.

You can see the slots on the back of shell on this Graco where the shoulder straps can be threaded through and attached to a splitter plate on the back for height adjsutment
You can see the slots on the back of shell on this Graco where the shoulder straps can be threaded through and attached to a splitter plate on the back for height adjsutment

Rethreading the Harness to Adjust Height (yuck!)


Rethreading harness straps to adjust shoulder height is the most challenging method of adjustment in the seats we reviewed. Rethreading requires removing the harness straps from a connector on the back of the seat and unthreading the straps from the current slots through the back to move them to higher slots. The process itself isn't that difficult, even though it is convoluted. However, you usually don't notice you need to adjust the straps until your baby is in the seat. This process means you will need to remove your baby from the seat and possibly the seat from the car to adjust. Then you will need to reinstall the seat before you place your baby inside and get on your way. We worry that some parents will procrastinate, making adjustments for this reason. This hassle could lead to a cycle of forgetting to do it time and time again, leaving your child driving around in a poorly fitted harness. Do NOT do this!!

The harness height adjustment on the Peg Perego Primo Viaggio has an easy pull tab to operate with no rethreading of straps necessary. This is one of the easiest adjustment options in the review.
The harness height adjustment on the Peg Perego Primo Viaggio has an easy pull tab to operate with no rethreading of straps necessary. This is one of the easiest adjustment options in the review.

Easy to Adjust Harness Height (Non-Rethread)


The easiest to change, and thus our favorite seats, are those whose height can move without the need for rethreading. This design means no splitter plate, no shifting the straps from one slot to another, no removing the baby from the seat. This kind of adjustment can happen on the fly as soon as you notice the harness needs changing. It is a quick and relatively painless process that requires either pushing a button, pulling a tab or moving levers in, and then pulling the headrest/shoulder portion of the seat up to the required height. The Peg Perego Primo Viaggio Convertible, Britax Boulevard ClickTight ARB, Britax Advocate ClickTight ARB, Britax Marathon ClickTight ARB, Britax Emblem, and the Britax Allegiance all have non-rethread harness systems that are easy to adjust and nicely designed. These were not the only options with this feature in the group, but they are the ones we liked the best.

The harness release button on the Chicco is visible and located on top of the padding. It does have a little lip on one side to help deter little ones from playing with it
The harness release button on the Chicco is visible and located on top of the padding. It does have a little lip on one side to help deter little ones from playing with it

Harness Tightening and Release


Once the shoulder straps are correct, and your child is buckled in, the entire harness tightens by pulling on the strap that trails from the foot of the seat. This process should be easy, and in theory, it is, but not all tightening straps are as easy as others.

You will know that the harness is tight enough when you are unable to pinch any harness fabric between your fingers. This test is often called the "pinch test."

Most of the harnesses we tested loosen by pressing a button near the foot of seat, while others worked by lifting a small lever in the same location. The button or lever should be somewhat stiff to operate to prevent little hands from pressing the button. However, they shouldn't be so difficult to use that an adult can't do it with one finger. Some seats have buttons that are visible on top of the seat fabric, while others have the adjustment hidden under padding and material to help little ones avoid temptation (out of sight, out of mind). The Britax Boulevard ClickTight ARB, Britax Marathon ClickTight ARB, and the Britax Advocate ClickTight ARB have an indicator click sound to tell you when the harness is tight enough, though we still recommend you use your best judgment and check the harness before relying on an external system.

The buckle on the Evenflo Tribute LX is one of the easiest in the group to use. The sides pop out on their own when the button is pressed
The buckle on the Evenflo Tribute LX is one of the easiest in the group to use. The sides pop out on their own when the button is pressed

Buckle


The buckles on the majority of the seats we tested are so remarkably similar we can't help but wonder if some of them come from the same assembly line. Many were easy enough to use, and while there is a pressure metric they need to meet, some were too stiff and hard to operate. If you have any thumb strength or structural hand issues, this might be more important to you than it is for others. The Maxi–Cosi Pria 70 earned the highest score for buckle ease of use, while the Diono Radian RXT is the most difficult.

The Evenflo isn't the easiest to install with LATCH or with the vehicle belt
The Evenflo isn't the easiest to install with LATCH or with the vehicle belt

Weight


While the weight of the carrier in our review of infant seats was important because you need to transport the carriers from place to place, the weight of the convertible seats is less important in our minds because you won't be carrying them around that often. The Clek Foonf is a very heavy seat at 38 lbs and 6 ounces; it is cumbersome to carry and more than a handful. However, given that you will rarely be moving it or transporting it, we don't feel this is a deal-breaker or high on the consideration list for most parents. The Britax Boulevard ClickTight ARB and Britax Advocate ClickTight ARB came in with the second and third heaviest weights for the group. Alternatively, if you will be moving your seat or using it for travel, you might be interested in the lighter weight seats like the Evenflo Tribute LX that is only 9 lbs 4 ounces.

Other Features


Sometimes the biggest differences between seats are smaller details. In a product genre where so many of the seats are similar in structure and function, the details are the only thing that helps differentiate them from each other. With gear that is so heavily regulated, it could be difficult to tell one product from another, or for parents to decide why one is better than another without considering the features that make them stand out.

The rear facing Clek Foonf has a recline adjustment attachment and a anti-rebound bar  as well as an under the seat belt pathway that includes a belt lock off. It is the most innovative seat in the review and includes a rigid forward facing LATCH system.
The rear facing Clek Foonf has a recline adjustment attachment and a anti-rebound bar, as well as an under the seat belt pathway that includes a belt lock off. It is the most innovative seat in the review and includes a rigid forward facing LATCH system.

Anti-Rebound Bar


While the jury is out on the efficacy of the anti-rebound bar offering additional protection, general physics seems to support the claim that it does. This bar works on the rear-facing seat and prevents the seat from dramatically flipping back against the vehicle seat back in the event of a crash. It is the back and forth motion that causes head and neck trauma in a collision, so less movement theoretically means fewer injuries. Even though we like the idea of the bar, we think that currently there is not enough information available for caregivers to believe that the absence of this should be a deal-breaker. For the time being, we think it is a potentially useful addition to an otherwise high-scoring seat, like the bars found on the Clek Foonf, Britax Boulevard ClickTight ARB, Britax Marathon ClickTight ARB, and the Britax Advocate ClickTight ARB. However, we wouldn't overlook a high scoring product without a bar in favor of a lower scoring option that has one. Luckily, these seats earned higher scores in our review, so you can purchase a high scoring product that also has a rebound bar.

The LATCH storage are hard plastic pockets on the each side of the Chicco seat base. They are a little awkward to get the anchors into correctly  but they work well once they are properly in place
The LATCH storage are hard plastic pockets on the each side of the Chicco seat base. They are a little awkward to get the anchors into correctly, but they work well once they are properly in place

LATCH Storage


If you use the seat belt to anchor your seat to the vehicle instead of the LATCH connectors, it is useful to have a spot to store the unused anchors. Unlike infant seats, where the anchors could get in the way of proper attachment of the carrier to the base, the anchors on the convertible seats are more of a nuisance than a potential hazard. Not all of the storage options are great, and we prefer the choices that keep the anchors attached to the shell body, so they don't come loose. Chicco NextFit has interesting plastic side pockets, which are sort of hard to use but keep them out of sight. It probably isn't necessary, though, and any seat that keeps them connected to the shell seems to work fine. Clek Foonf has rigid LATCH anchors that pull back under the seat and rear-facing anchors that tuck under the seat bottom.

The user manual for the Peg Perego fits in a designated storage pocket with a clear door that is easy to use and well placed. It is highly unlikely that the book with be damaged or lost with this storage method
The user manual for the Peg Perego fits in a designated storage pocket with a clear door that is easy to use and well placed. It is highly unlikely that the book with be damaged or lost with this storage method

Manual Storage


On each seat, there should be a spot to store the user's manual. You should have easy access to it in case you need it, but it shouldn't be where little ones can find it or where spilled items and vomit can reach it. Onboard storage helps keep answers at your fingertips to improve overall use and safety. It is essential to use the storage space as intended, so you aren't caught without the manual when you need it. Some of the seats store the manual under the padding where the child would sit, which seems like a poor location and one where it could easily get damaged, though this is better than areas where children can find the manual and destroy it before you notice. If you lose the manual or it does get damaged, most are available online, or you can order a new one from the company. It is far better to do the extra work to get a manual than it is to guess on specific installation or design information about your seat.

How do I decide which convertible car seat is best for my child?


With so many options and features to choose from, the decision on which car seat to buy can feel daunting. We've broken the process down into steps that help you determine what to consider when deciding which option is best for you and your child. While there are several excellent high-scoring products in this review, your particular needs or limitations might find you choosing a different model that works best for you even if it didn't win an award in our tests.

Step 1: Consider Where the Seat Will Go --Installation


As previously discussed, where you plan to install the car seat may impact which product you choose to purchase. Where and how you plan to use the seat might also influence you. Your usage pattern can make the difference between which option best meets your needs and which will be frustrating to use. Given that more than 80% of car seats have been shown to have at least one serious problem with installation, choosing an option that is easy to install in the location or locations you want will help keep your baby safer.

The Evenflo is the lightest seat in the group and one of the most narrow at just over 9 pounds and 17 inches
The Evenflo is the lightest seat in the group and one of the most narrow at just over 9 pounds and 17 inches

Urban Parents


If you reside in a major city and will need to transport your little one in a cab or Uber, you may want to look at some of the lighter weight seats. You may also want to do this if you travel frequently and plan to lug a car seat through the airport or on a train. Some of these seats are heavy, and this should be a factor for parents who won't be installing the seat in their car and forgetting about it. The Evenflo Tribute has high marks in crash testing, and at just over 9 lbs you will have an easier time carrying it than you would the Clek Foonf at over 38 lbs in its rear-facing configuration, or the Britax Boulevard ClickTight ARB at over 28 lbs.

Center or Side?


Will your seat be installed in the center seat or on the side? Some vehicles do not offer LATCH connection points for the center seat, so you will want to check your vehicle for anchor points. Alternatively, you can install the seat using the belt only, and we found during testing that many of the car seats feel very secure installed using a lap-only belt, and some were even easier to install with the vehicle belt than with LATCH.

Research shows a 43% lower risk of injury for car seats secured in the center, but the center location is only safe if you properly anchor the seat. The research also shows that more than 80% of car seats have a minimum of one serious problem with the installation. Therefore, we suggest parents take ease of installation as seriously as we do.

We think it is worth noting that 61% of us parents, place car seats on one of the side seats. The side seat is more convenient for getting the child in and out of the vehicle, and it is the only option for families with multiple children or those with cars built before 2002.

Installing the Car Seat Safely
Making mistakes when installing a seat or securing the baby in the seat is common. Because of this, we have dedicated a separate article to this topic. It is crucial that car seats be correctly used for them to work properly. For this reason, we advocate parents consider ease of installation and ease of use as critical factors in their buying decision.

The Britax Boulevard ClickTight is one of the easiest seats to use.
The Britax Boulevard ClickTight is one of the easiest seats to use.

Step 2: Ease of Use


Because installing your seat is likely to be only an occasional process for most parents, it is the daily ease of use that will impact your experience and overall safety of the car seat. Getting your child into and out of the seat, as well as strapping them into the harness, are activities you will need to perform daily. How difficult these activities are will quickly become more important to you than how difficult it is to get the seat anchored into the vehicle.

Ease of use varies from seat to seat with scores between 4 and 8 in our testing. Chances are you have a few seats on your list after considering installation locations and how easy it is to install. Finding the seat or seats in this list that also easy to use should help narrow the options further. All of the Britax options earned a high score of 8 for ease of use. Check our ease of use ratings to narrow your list down. The Evenflo Tribute LX and Peg Perego Primo Viaggio Convertible scored 7s in this metric, making them each a second place for ease of use.

Step 3: Crash Test Performance


All the seats in this review have passed the minimum requirements for crash tests as outlined by federal guidelines. Therefore, all of the seats offer a basic level of protection, but some perform significantly better than others, and you can consider them as offering an extra margin of protection compared to other seats.

The chest sensor data for the Evenflo compared to that of the Clek that has the lowest recorded G forces in the chest sensor during crash tests
The chest sensor data for the Evenflo compared to that of the Clek that has the lowest recorded G forces in the chest sensor during crash tests

Many parents might consider crash test performance to be the most critical factor in choosing a seat. However, because installation and ease of use impact your ability to use the seat correctly, which influences the overall safety, we believe you should consider both of those before the actual crash data. Given that over 80% of parents install or misuse their seat, it matters little how safe a product is if you don't use it correctly. After finding a seat that is easy to install and use, then it is crucial to find one that will function well in the event of a crash after you install it correctly and strap baby in according to the instructions.

To evaluate the crash test data of each seat we review, we analyzed their crash test results to compare how each performed in comparison to the federally required minimum score. Also, we assessed how well each seat performs compared to the other products in the review. Now that you have narrowed down your list to a few finalists, you can use our crash test analysis to choose the seat that offers an extra margin of protection for your final selection.

Car Seats Expire
The foam used to construct car seats has an actual shelf life, so after a certain period, you should no longer use the seat, and it should be destroyed. If you choose to use a hand me down car seat, you need to ensure it has not already expired and that it won't expire in the 9 to 12 months that you will need it. Also, it is important to retire any car seat involved in an accident. Even if the seat appears to be uncompromised, you should still discard it.

Several new convertible options were added to this review giving you more information on potential competitors than ever before.
Several new convertible options were added to this review giving you more information on potential competitors than ever before.

Optional Reading: Car Seat Lingo


To help you understand all things car seats, we have provided a little terminology insight that you might come in contact with when reviewing car seat information. Knowing the lingo can help you stay the course and ensure that you understand the details of what you are reading. This knowledge is important for interpreting information easily.

The terms and definitions are from the National Child Passenger Safety (CPS) Certification Training Program manual. While some definitions have been slightly changed to increase readability, the intent/meaning is the same. You can read these definitions here.

We purchase 2 of each convertible seats we test. The seats are compared side-by-side to evaluate their performance in relation to one another in each metric ad one of each is sent to MGA for crash testing. Multiple testers used the seats in different vehicles, and we use 3-4 different vehicles in our ease of installation testing to get a better overall feel of each seat's average functionality and features. All products are used following the manufacturer's guidelines and under the supervision of a Child Passenger Safety (CPS) technician.

Before testing, we consulted with the National Highway Transportation Safety Administration (NHTSA) and a certified CPS Technician to assist in developing comprehensive tests for car seats. The car seat test plan and testing process were reviewed and monitored by Dr. Juliet Spurrier, BabyGearLab founder, mother of two, and a board-certified Pediatrician.

This chart shows the head sensor data for the Clek compared to that of the Evenflo.
This chart shows the head sensor data for the Clek compared to that of the Evenflo.

Crash Tests


We conducted research and analyzed the crash test data of sled crash tests in professionally prepared reports. BabyGearLab contracted with the same test facility that is used by NHTSA to perform crash tests on car seats. We used the same testing protocol used by NHTSA in compliance with the FMVSS 213 standard. We used our test data with additional crash test data from NHTSA's test results to formulate an analysis of each seat.

Tests utilized a crash test dummy with sensors located in various body parts that record G-forces exerted on the dummy during testing. We reviewed and analyzed the results obtained from the sensors and rated the seats in comparison to one another. Our crash tests were conducted with a Hybrid III 3 YO Part 572 P dummy (3 year old test dummy) in a forward-facing position because NHTSA crash injury studies have shown that the risks of injury are far more significant when children are forward-facing, and the heavier 3 yr old test dummy provides a more strenuous test of the seats. For those reasons, we consider testing with a heavier test dummy in a forward-facing position to be more informative concerning differences that translate to injury prevention.



The more a seat managed to exceed the federal safety standards, the higher it scored in our analysis of the results. It is important to remember that all of the products for sale in the US comply with federal safety guidelines. However, each seat we tested responded differently in the sled testing, and we believe the results can help differentiate the seats from one another.

Installing the Roundabout in the rear facing position is very easy
Installing the Roundabout is almost the easiest in the group to install

Ease of Install


We installed each seat in at least three vehicles of varying size and different makes from a compact sedan to a passenger truck. At least two different testers installed the seats according to the manual instructions, and each installation was overseen by a certified Child Passenger Safety technician to ensure they were properly installed. The installers then ranked each seat compared to the other seats in the group for ease of installation and the scores for all testers were averaged to create a final score for each seat. This methodology was repeated for installation using LATCH and the vehicle belt in both the rear and front-facing positions.

The Britax Boulevard ClickTight is one of the easiest seats to use.
The Britax Boulevard ClickTight is one of the easiest seats to use.

Ease of Use


To test ease of use we used the seats the way they would be used under normal circumstances and scored their results compared to the other seats in the group. We used the buckles and chest clips, tightened and loosened the harness, adjusted the harness heights, removal and cleaning of the seat cover, and assessed LATCH storage to help determine how easy or difficult each seat is to use.

The fabric on the Chicco wraps around and tucks into the shell for a very impressive overall finish. We liked this better than those that wrap around with elastic and look more like slip covers
The fabric on the Chicco wraps around and tucks into the shell for a very impressive overall finish. We liked this better than those that wrap around with elastic and look more like slip covers

Comfort/Quality


Testing comfort and quality are a bit more subjective than the other metrics. We compared each seat to one another and ranked each as it compared to the other products. The testing included the padding, fabric, positioning/infant inserts, materials used, shell construction, and the overall fit and finish. The feedback obtained from testers was then averaged to determine its final score.

The Clek weighs over 38 pounds in the rear facing configuration and closer to 33 for forward facing. The weight difference is the angle adjustment pad and the anti-rebound bar
The Evenflo is the lightest seat in the group and one of the most narrow at just over 9 pounds and 17 inches

Weight/Size


The options we tested in this review were all weighed in both forward and rear-facing configurations. We measured them completely and their the width and weight had equal impact on the final score for size. Each seat was weighed using the same scale performed by the same tester. The seat weights were ranked from the heaviest to the lightest, and they are scored appropriately.

Choosing the best convertible car seat for your little one doesn't have to be a nightmare or a random guess. Armed with the details in our extensive review and crash test results, we think you have the information you need to determine which top two contenders meet your needs and you budget. Whether you base your decision on crash testing alone or other factors, you'll find the details that will guide you there in this review of excellent contenders.


Juliet Spurrier, MD & Wendy Schmitz