Misfit Shine: For the fashion-forward friend who just can't have her pedometer cramp her style, the Misfit Shine ($120) is a cute compromise. It measures activity level and calories burned, and she can even wear it the next time she's doing laps at the pool. The tracker is sleek and can be worn several ways — as a necklace, watch, or just clipped onto clothing — and syncs wirelessly when she places it on her phone. The watch battery lasts for months, after which she just needs to replace it.
The easiest way to stay healthy is simply to move for 30 minutes every day. Human will pick up and track your activity so you'll know if you're hitting your daily goals. You can even make a fitness club with your friends in the app and encourage each other to get moving. This app also works with Apple Watch.