Mi band works with Bluetooth 4.0 Compatible with Mi 3, Redmi Note 4G, or any device with Android 4.4 and above also with iPhone 4s and above that run on iOS 7.0 and above. Mi Band’s phone unlocking feature requires smartphones with MIUI or Android 5.0 an
The smart band features an extremely power efficient accelerometer, with the Built-in rechargeable battery that Xiaomi claims, has a standby time of over 30 days.The device is a complete fitness tracker, as you would expect from a smart band. It literally keeps track of every step you take, along with your sleeping patterns. It records daily movement data- the number of steps you’ve taken and the calories you’ve burnt. You don’t need to worry about it coming in contact with water- it is waterproof, certified by an IP67 Standard.