In Depth Baby Product Reviews Led by a Pediatrician

BubbleBum Review

Acceptable performance for a travel friendly, inexpensive choice
bubblebum booster seat review
Credit: Abriah Wofford
Top Pick Award
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Price:  $30 List
Manufacturer:   BubbleBum
By Juliet Spurrier, MD & Wendy Schmitz  ⋅  Dec 21, 2021

#6 of 8
  • Crash Test - 35% 5.0
  • Ease Of Use - 30% 4.4
  • Weight/Size - 15% 8.8
  • Comfort - 10% 5.1
  • Quality - 10% 3.4

The Skinny

The BubbleBum is one of our favorite booster seats. It is an inflatable cushion that boosts children up so the vehicle seatbelt properly aligns with their body for safe fitting. This product is small and very lightweight, making it ideal for carpooling and traveling or for instances where children may need to carry their booster. While this product has some inherent issues, like the use of lower quality materials and some difficulty with seat belt retainers, we still think it is the best thing going for times when you may need to carry or transport a booster seat for driving safety. With the lowest price in the group, this easy-to-buckle option makes a great add-on safety option for use when your full-size booster would be too cumbersome or heavy for the job at hand.
Lightweight and portable
Harder to use
Lower quality
Editor's Note: The BubbleBum review received an update on December 21, 2021. New details were included on sub-testing within important metrics.

Compare to Similar Products

bubblebum booster seat review
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Awards Top Pick Award Editors' Choice Award  Best Value Award  
Price $30 List
$34.99 at Amazon
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Overall Score Sort Icon
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Pros Lightweight and portable, budget-friendlyReasonable price, better crash test analysis, super comfy, high-qualityBetter crash test results, price, lighterEasiest to use, better crash test results, pricePortable, nicer quality, lower price
Cons Harder to use, lower qualityHeavier, can't go backlessLess padding, qualityAverage quality, widest seat bottomLowest crash test results, hard to use, uncomfortable
Bottom Line Acceptable performance for a travel friendly, inexpensive choiceThis high-quality booster is super comfortable, with better crash test analysis and a reasonable priceBudget-friendly choice with better crash test resultsNicely priced, easy to use option with better crash test resultsSuper easy to travel with but it has the lowest crash test results
Rating Categories BubbleBum UPPAbaby Alta Diono Monterey XT Chicco KidFit mifold
Crash Test (35%)
Ease Of Use (30%)
Weight/Size (15%)
Comfort (10%)
Quality (10%)
Specs BubbleBum UPPAbaby Alta Diono Monterey XT Chicco KidFit mifold
Crash Test HIC Score 603 390 556 557 733
Crash Test Chest G Clip 45 53 42 46 48
Modes Backless Booster High Back Booster High Back Booster,
Backless Booster
High Back Booster,
Backless Booster
Backless Booster
High Back Booster Weight Range n/a 40 - 100 lbs 40 - 120 lbs 30 - 100 lbs n/a
High Back Booster Height Range n/a 38" - 57" 38" - 63" 38" - 57" n/a
Width 14" 18.5" 18.4" 20" 9.4"
Weight 1 lbs 16.1 lbs 14.2 lbs 10.4 lbs 1.5 lbs
Backless Booster Weight Range 40 - 100 lbs n/a 40 - 120 lbs 40 - 110 lbs 40 - 100 lbs
Backless Booster Height Range 40" - 57" n/a 38" - 63" 38" - 57" 40" - 57"
5 pt Harness Weight Range n/a n/a n/a n/a n/a
5 pt Harness Height Range n/a n/a n/a n/a n/a
LATCH Equipped No Yes Yes Yes No
Can you use LATCH in booster mode? n/a Yes Yes Yes n/a
Recline Positions 0 0 0 2 0
Foam Type None EPP EPS EPS None
Seat Lifespan Not Listed 10 yrs 6 yrs 8 yrs 7 yrs

Our Analysis and Test Results

BubbleBum is the first inflatable booster seat and was invented by Grainne Kelly. Kelly came up with the BubbleBum idea when she got frustrated carrying around heavy and bulky boosters for her two children. This booster meets and exceeds EU and US requirements. This innovation is the flagship product for a company that now makes a children's neck pillow and activity organizer for the backseat. The BubbleBum sells in more than twenty-eight countries.

Performance Comparison

bubblebum booster seat review - the bubblebum earned basic crash test results that are neither...
The BubbleBum earned basic crash test results that are neither ultra-impressive nor the worst in the group. They are superior to those earned by the mifold, the only other backless booster we tested.
Credit: Abriah Wofford

Crash Test

The BubbleBum earned a below-average crash test score for the group.

All of the boosters included in this review have passed the federal minimum guidelines for safety and are therefore considered safe. The testing of the boosters in this review allows for an apples-to-apples comparison of results using the same standards and facility that NHTSA uses in their testing. The BubbleBum provides what we consider to be a basic level of protection with test results that were generally average for the group.

bubblebum booster seat review - the graph shows a comparison of the head sensor (hic) results for...
The graph shows a comparison of the head sensor (HIC) results for the BubbleBum (in black) compared to the best results in the group earned by the UPPAbaby Alta (in green).
Credit: MGA, BabyGearLab Staff

This booster's head sensor on the crash test dummy registered 603, where the maximum HIC allowed is 1000 ( the lower result is better). While this is below the maximum, it is higher than the top performer, the UPPAbaby Alta with a result of 390. Below is a comparison of the HIC sensor results for the Bubblebum and the competition in this review.

bubblebum booster seat review - the graph shows a comparison of the chest sensor (g) crash test...
The graph shows a comparison of the chest sensor (g) crash test results for the BubbleBum (in black) compared to the best results in the group earned by the Peg Perego Viaggio Flex (in green).
Credit: BabyGearLab, MGA Research

The chest sensor results (g) on the BubbleBum crash test dummy showed 45 g, where the maximum allowed is 60 g, and a lower result is better. The lowest (and best) result in our tests is 39 g (see comparison above). Below is a comparison chart of all boosters in this review and their chest sensor crash test results.

Backless vs. High-backed
In general, we feel a high-backed booster provides an added degree of safety by creating a shell similar to convertible car seats for possible side-impact collisions or vehicle intrusion from the outside during a crash. However, that being said, we feel any safety belt-positioning device is better than none, and the BubbleBum fills a niche where boosters are often skipped for the sake of convenience.

bubblebum booster seat review - it is easier for children to buckle themselves in with the...
It is easier for children to buckle themselves in with the BubbleBum, but the belt often fell out of the retainer prior to buckling which isn't ideal.
Credit: Abriah Wofford

Ease of Use

Given the BubbleBum lack of features or back, the lower ease of use score is somehow even more disappointing.

Our kid testers could buckle themselves in easier with this product than the similarly small competitors.

Parents may need to help little ones attach the BubbleBum shoulder...
Parents may need to help little ones attach the BubbleBum shoulder retainer to the vehicle belt depending on their age and abilities.
The shoulder retainer on the BubbleBum needs more attention than...
The shoulder retainer on the BubbleBum needs more attention than high backed boosters to ensure it stays in the right location.

However, the belt strap fell out of the retainer regularly, and they struggled more with the shoulder retainer and keeping it in the right spot for proper alignment (above left). Unlike the high back boosters, this kind of booster needs more attention (above right) to the retainer location as it can move.

Installation and moving the BubbleBum is pretty straightforward. It has no LATCH and is so lightweight kids can move and adjust the booster themselves. The seat is spot clean only, and it does have a crevice that wraps around the entire product where gunk can and will get lodged.

bubblebum booster seat review - the bubblebum is only 1 lb and 14 inches wide. these measurements...
The BubbleBum is only 1 lb and 14 inches wide. These measurements make it the lightest and second smallest option in the review. You can deflate the booster and roll it up smaller to fit in the carry bag.
Credit: Abriah Wofford

Weight and Size

The BubbleBum is one of the smallest and lightest options in the group.

This product has the lightest weight in the group at only 1 lb. Even the smaller competitor is heavier with a weight of 1.5 lbs. The BubbleBum is 14 in wide, making it the second-smallest. It is highly likely you can fit up to three of the BubbleBum boosters across the back seat of most vehicles, given the smaller width. This makes it an excellent choice for carpooling as it enables the transport of more children than traditional high-backed boosters.

bubblebum booster seat review - little testers had no complaints concerning comfort for the...
Little testers had no complaints concerning comfort for the BubbleBum including the shoulder belt retainer or strap.
Credit: Abriah Wofford


This booster isn't as comfortable as some competition with high backs.

However, our little testers all felt that this seat was comfortable for what it is and gave it fairly high ratings compared to the competition. They felt the air-filled base was comfortable and had no real complaints. For us, the fabric is not as soft as it looks and isn't that friendly on bare legs. However, it also lost points for not having a back or headrest, which can increase napping capabilities.

bubblebum booster seat review - we feel the quality of the bubblebum could improve by preventing the...
We feel the quality of the BubbleBum could improve by preventing the cushion from deflating on its own and increasing the softness and durability of the fabric.
Credit: Abriah Wofford


This booster isn't the best quality compared to the competition.

The padding is an air cushion, and over time, the cushion struggles to stay inflated, indicating a loss of air pressure somewhere and a quality assurance issue. The fabric isn't as nice as it could be, and the seat's design means it will easily collect grime, and the material may not wear well over time. The Overall fit and finish are somewhat cheap and sloppy. Even though the product is inexpensive, the simple design could have been executed with higher-end materials and more attention to quality control.

Should You Buy the BubbleBum?

The BubbleBum is cheap, making it a shoo-in for many families. It is lightweight and compact when deflated so that little ones can carry it themselves. It is perfect for travel and carpooling, and we've used it with our children on travel and camp outings. Despite having a lower crash test result, we think it fills the niche of travel-friendly like no other option, and the low price means it could be an excellent secondary seat used for travel only.

What Other Booster Seat Should You Consider?

This small booster is our favorite for travel and kids to carry. However, the lower score for crash testing make it one we wouldn't necessarily recommend for everyday, regular use unless your budget simply can't be stretched. For smaller budgets, we prefer the Chicco KidFit. This booster is easier to use, more comfortable, and has a better crash test result. Plus, it can be used as a high-back booster or go backless, making it suitable for everyday use and travel.

Manufacturer Video

Juliet Spurrier, MD & Wendy Schmitz
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