You can connect your UP4 band to an eligible American Express Card* for payments on the go at participating stores. See below for important terms and limitations.*Heart health monitoring throughout the dayGet personalized guidance from Smart CoachAdvanced sleep tracking automatically to capture REM, Light and DeepSyncs wirelessly plus 7 days battery lifeAndroid 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
