Brand:

Xiaomi 

Bluetooth version:

Bluetooth 4.0 

Waterproof rating:

IP67 

Battery:

45mAh, polymer lithium battery 

Compatible:

Android 4.4 + & support Bluetooth 4.0 : For Android devices,  iOS 7 - For Apple devices : iPhone 4s / 5 / 5c / 5s / 6 / 6 Plus,

For smart unlock features:

Xiaomi (MIUI 6 and above): Mi2/2S/2A, Mi3, Mi4, Mi Note, Mi4C, Redmi 1S,  Redmi 2/2A, Redmi Note, Redmi Note2, Phone with Android version 5.0 above.

Language:

English

Weight and Size:

Dial thickness: 0.99 cm / 0.39 inches 

Dial diameter: 1.36 x 3.7 cm / 0.54 x 1.46 inches 

Band width: 1.3 cm / 0.5 inches 

Wearable length: 15.7 - 20.5 cm / 6.18 - 8.07 inches 

Product weight: 14 g 

Product size (L x W x H): 22.5 x 1.36 x 0.99 cm / 8.84 x 0.53 x 0.39 inches 

Features:

Mi Fitness monitor - Functions: Steps counting, Alarm clock, Sleep management, Call reminder,Measurement of heart rate, Calories burned measuring, Distance recording , Alert type: Vibration