* 30-day standby power
* Sleep-cycle smart alarm
* Fitness monitor & sleep tracker
* Running MIUI Android 4.4 and above
* Unlock your Mi phone without a password
* Stylish band options (incl. wrap-around and leather)
Note: 1. xiaomi band can support iphone which has iOS 7.0 systems or iOS 7.0 above systems ; xiaomi band also can support Android cell phone that not only has Android4.4 systems or Android4.4 above system but also has bluetooth 4.0.
2. Some cell phones only can support xiaomi band some functions, except Android 4.4 of xiaomi 3 and xiaomi 4, 4G redmi 1s, and 4G redmi can fulfill all of the functions , please note it, this is very important.