The GB Pockit Stroller ($180, originally $250) is the smallest stroller on the market. When folded, its dimensions are 11.8 inches by 7 inches by 13.8 inches. It can support children all the way from 6 months up to 55 pounds. That is an amazing feat for a stroller that weighs less than 10 pounds. It's also known for easy, one-hand pushing and steering.