You can view real-time physical activity through mobile applications, monitoring the effect of walking and running and you can identify more sport through the clouds. Xiaomi bracelet can automatically determine whether sleep, deep sleep and light were recorded and summarized sleep time to help users monitor their sleep quality. The newest Xiaomi bracelets support Apple's iOS version 7.0 and above, i.e. iPhone 4S/5/5C/5S/6/6 Plus. It supports pedometers, sleep monitoring, alarm clock, find bracelets, phone calls reminder and Apple health applications. The original Xiaomi bracelet has function of record the sport date in every day, sleep quality monitoring, smart alarm clock wake up. It perfectly supports Xiaomi3/Xiaomi4 and Red Mi Note 4G. Aluminum alloy metal surface. Polycarbonate body casing. Ultra-thin 8mm battery. Mi Band's phone unlocking feature requires smartphones with MIUI or Android 5.0 and above.