0.42inch OLED display screen with touchpad Support Heart rate monito Gesture Wake up Screen Passometer,Fitness Tracker,Sleep Tracker,Message Reminder,Call Reminder Water resistant (IP67) 20-day standby power Sleep-cycle smart alarm With a Dialog II 4.0 bluetooth chip, ADI sensor Running MIUI Android 4.4 and above versions; For iphone 4s/5/5s/6/plus ios 7.0 and above Unlock your Mi phone without a password Stylish band options (incl. wrap-around and leather)
Devices requirements Bluetooth 4.0 Android 4.4 or iOS >= 7.0 phones
