Battery capacity:70mAh

Standby time:20 days

Battery type: Lithium polymer

Input current: 45 mA (typ) 65mA (max)

7.0g

Plastic, aluminum alloy

IP67

0.42" OLED display

Bluetooth 4.2 BLE

Power-efficient accelerometer Photoelectric heart rate sensor

Total length: 235 mm

Adjustable length: 155-210 mm

Material: Thermoplastic elastomer, aluminum alloy

Devices with Android 4.4, iOS 7.0 or above with Bluetooth® 4.0 support

Compatible phones:

Devices with Android 4.4 and above, such as Mi 3, Mi 4, Mi 4i, Mi 5, Mi Max, Redmi Note 4G, Redmi Note Prime,

Redmi 1S, Redmi 2, Redmi 2 Prime, Redmi Note 3, Redmi 3S, Redmi 3S Prime, Redmi 3S+

Devices with iOS 7.0 and above, such as iPhone models 4s and later.

Note: Mi Band`s phone unlocking feature requires smartphones with MIUI or Android 5.0 and above.