For the Obsessive Compulsive Health Fiend
We all have that friend who literally obsesses over her health—how much she exercised, what she ate, how much she slept. The Jawbone UP ($129, jawbone.com)—a super stylish bracelet—does it all. Not only does it track your sleep cycle, but it has an alarm that wakes you when you enter a light sleep, as opposed to waking you from a deep slumber like most alarms do. It helps you to track caloric and nutrition intake and has pedometer technology to record your total number of steps each day. Just plug into your smartphone and start playing.