iOS users - 
Brand: XiaoMi
Bluetooth version: Bluetooth 4.0
People: Female table?Male table
Waterproof: Yes
Waterproof Rating : IP67
Colors: Black
Screen: No
Compatible OS: Android?IOS
Compatability: Android 4.4 / iOS 7.0 and above system
Language: English Battery Type: Lithium polymer battery
Battery Capacity: 45mAh
Standby time: About 10 days Functions: Measurement of heart rate?Sleep management?Call reminder?Calories burned measuring?Steps counting?Distance recording?Alarm Clock
Alert type: Vibration Shape of the dial: Elliptical
Case material: Magnesium-aluminum alloy
Band material: TPSiV The dial thickness: 0.99 cm / 0.39 inches
The dial diameter: 1.36 x 3.7 cm / 0.54 x 1.46 inches
The band width: 1.3 cm / 0.5 inches
Wearable length: 15.7 - 20.5 cm / 6.18 - 8.07 inches
Array Package weight: 0.118 kg
Product size (L x W x H): 22.50 x 1.36 x 0.99 cm / 8.86 x 0.54 x 0.39 inches
Package size (L x W x H): 10.00 x 10.00 x 3.50 cm / 3.94 x 3.94 x 1.38 inches Package Contents: 1 x Xiaomi Mi Band 1S Smart Watch? 1 x Manual? 1 x Charger? 1 x Box 
