Advanced sleep tracking automatically to capture REM, Light and Deep
Smart Alarm silently wakes you at the optimal time in your sleep cycle. Syncs wirelessly plus 7 days battery life.
The UP3 tracker uses multi-sensor technology to capture both your Resting Heart Rate and Passive Heart Rate for a holistic view of your heart. Resting Heart Rate is measured once per day before you wake up, while Passive Heart Rate is measured throughout the day when your body is still.