Jump roping got smart, and we should all be here for it. This Tangram Rookie version is around 9 feet long and comes with a carrying pouch in case this exercise is a bit too wild for your apartment and you need to take things to the park. It also connects to iOS, Android, and Apple Watch, so you can keep track of total jumps, calories burned, and workout time. Plus, you can add a bit of peer pressure to your workout by competing against your friends on the app. Heads up—it’s powered by a coin battery that is not included.