In the end, we designed specific tests to look at key performance metrics. These ranged from the ease of using the safety harness, to pushing products across grass, gravel, dirt, and even curbs. This gave us the information we needed to rate the products based on combination of actual use and detailed analysis, as opposed to speculation and manufacturer specifications.
Weight and Folded Size
We took our own measurements of each product for consistent results, instead of relying on manufacturer specs. This ensures that all of the products were compared equally by using the same scale and the same measuring methods. All of the options were weighed fully assembled with all the included accessories, and measured with the same device by the same tester. The results were compared to one another to determine scores. The smaller and lighter products earned better scores.
Ease of Use
We tested and compared the features and convenience items of each product. Products earned more points for nice large easy to use sun shades, peek-a-boo windows with covers, useful cup holders, large storage bins with easy access, harnesses that are easy to adjust, adjustable leg rests and reclining seat backs.
Most of the double products didn't offer much, while a few had more bells and whistles. Each product was compared against the others and we considered who had the best storage and the largest canopies. Which options have the most convenient storage, and which bins were impossible to access thanks to stabilizing cross bars. Products were ranked against each other to compare what each has to offer. Specifics like how deep the recline is and whether or not there was an adjustable leg rest helped us differentiate between products.
All of the double products were put through a series of maneuverability tests using various surfaces in different environments to determine agility and ease of pushing and turning under normal circumstance and pushing the limits of their designs. We used them two-handed and one-handed over a variety of different surfaces including concrete, hardwood, grass, gravel, and up curbs, to determine which options were easy to move and which we frustrating. It is important that a product in this gear category be able to move well in tight spaces and crowded locations. Easy flat surface pushing is a must, but moving on other surfaces is a bonus, as it is likely to come up in the real world. We ranked each option against the others to determine which were the best and multiple surfaces. The double strollers that were the easiest to push earned better scores, the choices that performed well on different surfaces scored higher. Products that were harder to turn or had trouble with transitions, the majority of them in this group, earned fewer points.
Quality was determined by the overall experience during testing and how the strollers compared. We reviewed features like fabric durability and comfort, stain or water resistance, snag-ability, and the stitching. We looked at the frame design and materials, connection and transition points, and if the frame flexes or the handles pushed in during use. The size and material of the wheels were also considered, and we considered if they had worn well through our review period. Strollers were compared to each other and how well the products held up during testing and how well we think they will do in the future.