Bugaboo Butterfly 2 Plus

If you'll fly or ride trains with a baby, it's an easy stroller to bring along. It weighs 16 lb, folds in one move, and the seat lies flat, so you can use it from day one.

It's not just a backup stroller, either. The basket holds 17.6 lb and it's rated for kids up to 50 lb.

The trade-off? Want to click in an infant car seat? You'll need to buy adapters. And it's built for sidewalks, not trails.

It's a one-second fold, and one parent reviewer says that's no exaggeration. You press the buttons on the handlebar, push it in, and it folds into a small, upright package.

At 16 lb, it's easy to grab and go.

This is the big reason to buy it. It's built to fit most overhead bins, but check your airline's size rules first. If it fits, you can skip the gate check and the wait at the jet bridge.

The seat goes from fully flat to fully upright.

Want to click in an infant car seat? You'll need the Butterfly 2 car seat adapters. With them, 19 infant car seats from Bugaboo, Nuna, Maxi-Cosi, Clek and Cybex click on.

It holds 17.6 lb, which is big for a stroller this small. A diaper bag, snacks and a jacket fit fine.

The wheels are 5.5 in in front and 6 in in back, with full suspension. It handles curbs and cracked sidewalks well. It's made for the city more than for trails.

It's a foot pedal, so you can tap it on and off.

The fold gets the most love. Reviewers also remind you to check your airline, since bins aren't the same on every plane.