Specification:
System requirements: Android 4.4 above, iOS 8.0 above, Bluetooth 4.0
Bluetooth version: 4.2
Chip: Realtek8762
Sensors: gravity sensors and reflected optical power rate sensors
Display: 0.86 "OLED
Battery capacity: 60mAh
Standby time: up to 7-10 days
Operation: capacitive touch screen
Waterproof : IP67 (not suitable for swimming or bathing)
Functions : Heart rate monitor, Sleeping monitor, Messaging notification, Caller ID display, Pedometer, Smart alarm, etc
Weight: about 20g

Warranty : 1 month

What's in the item :
​1 x Smart band
1 x USB charger
​1 x manual