Jawbone UP3

Jawbone is taking it a step further with their next generation fitness tracker, the UP3. Their most feature-rich wearable yet, UP3 has a host of sensors including a heart rate sensor, Sleep Sensors that track REM, Light, and Deep sleep stages, and an all-new sleeker, more compact design. It also features "Auto Activity Classification" that learns and recognizes your fitness routine, water resistance to 10m, Idle Alert, and up to a week of battery life on a single charge.

$180, Jawbone