PC + TPU (strap)
Android and IOS
Screen size: 0.91″ OLED, True Color Display.
Bluetooth: BLE 4.0
Battery use time: 7 Days.
Features: Clock, Steps, Calories, Distance, Hear rate, Exercise tracking mode, Reminder to move, Incoming call and SMS, Silent vibrant alarm, Auto turn on display by detecting wrist rotation, Auto sleep tracking.