Battery Capacity: 70mAh
Standby time: 20 days
Batteries Type: Lithium Polymer
Input current: 45 mA (TYP) 65 mA (MAX)
Weight: 7.0 g
The main material: plastic, aluminum
Waterproof rating: IP67
Strap: total length: 235 mm
Adjustable Length: 155-210 mm
Material: thermoplastic elastomers, aluminum
Display:0.42 inches OLED display
Bluetooth 4.0 BLE
Low power consumption acceleration sensor and photoelectric heart rate sensor
1. 100% original Xiaomi mi band 2
2 .0.42inch OLED display screen with touchpad
3. Support Heart rate monitor
4. Passometer,Fitness Tracker,Sleep Tracker,Message Reminder,Call Reminder
5. Sleep-cycle smart alarm
6. Running MIUI Android 4.4 and above versions; For iphone 4s/5/5s/6/plus ios 7.0 and above
7.Unlock your Mi phone without a password
1. DON'T wear the band when you are swimming or diving.
2. Install APP 'Mi Fit' only via link: http:m.app.mi.com/detail/68548
3. Heart rate monitor is valid in the condition of keep still of your arm and body.
4. Keep other bands (such as Miband 1S and 1A) away from Miband 2 when you tring to pair with a phone, otherwise it may cause unsucessful paring.