Hi friends. I have been using this MI BAND from 4 months. it’s really awesome working very well. I have charged only two times till now the charging backup is really good. The band is also water resistant I even do bath with it daily. I don’t remove it from my hand at any cost. Where ever you keep your phone it notifies you on your hand about call or messages. Just now I washed it in water you can believe that it is water resistant.
The battery life of this device is awesome it will be charged for months not need to look about batter