Original Xiaomi Mi Band 2 Heart Rate Monitor Smart Wristband

Bluetooth version: Bluetooth 4.0 
Language: English,Simplified Chinese 
Waterproof: Yes 
IP rating: IP67 
Screen type: OLED 
Operating mode: Touch Screen 
Compatible OS: Android,IOS 
Compatability: Android 4.4 / iOS 7.0 and above system 
People: Female table,Male table 
Battery Capacty: 70mAh 
Standby time: 20 days 
Charging time: About 3hours

Buy it here  (use coupon code: "GBMI2" )