Nutritional Supplements » Worldwide Sport »UP3 by Jawbone Heart Rate, Activity + Sleep Tracker, Silver Cross (Gray)

1. Heart health monitoring throughout the day
2. Get personalized guidance from Smart Coach
3. Advanced sleep tracking automatically to capture REM, Light and Deep
4. Smart AlarmTM silently wakes you at the optimal time in your sleep cycle
5. Syncs wirelessly plus 7 days battery life. If your UP band's battery level is low, you may be unable to pair or sync with the UP App. Fully charge your band then attempt to pair it again