If you care about your fitness and want to keep a check on your sleeping patterns, calories consumed, heartbeat rate etc.The mi band is an awesome gadget to go for. Since I myself is using xiaomi note 4, I have recently bought the band and have synced it with my phone. You have dk download ab mi fit app from either play store or mi store and sync your device with your phone using bluetooth . And it will help you not only check your incoming calls, whatsaap messages and mails but also it tracks important health parameters .
It keeps track of sleeping hours, calories consumed, steps walked, pulse rate.
You can also set goals while doing gaming and it will keep track whether you achieved your concerned goal or not.
It is just like a watch which not only tells you time but much more.
It’s battery life is also incredible a single full recharge us sufficient fir entire week.