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Feature
Heart health monitoring throughout the dayGet personalized guidance from Smart Coach
Advanced sleep tracking automatically to capture REM, Light and Deep
Smart Alarm(TM) silently wakes you at the optimal time in your sleep cycle
Syncs wirelessly plus 7 days battery life
Android compatibility - UP2, UP3 and UP4 are compatible with Android 4.3 (Jelly Bean) or later.
iOS compatibility - UP2, UP3 and UP4 are compatible with the following iOS devices:iPhone 4S or newer, iPod Touch 5th generation or newer, iPad 3 or newer, iPad Mini 1st generation or newer, iPad Air 1st generation or newer