Mi band a fitness product from Xiaomi which does it job perfect. It has all features that a band is expected to have it.
It monitors your sleep pattern like deep sleep, number of hours of light sleep. Steps taken. The most existing features it has out let’s you to set your goal and encourages you to acheive it on daily basis.
You feel great when you achieve it. The first version does lack some of feature such as screen to watch on band as it doesn’t have. Heart sensor is missing but with such a lower price what do you expect more.
Battery is amazing. It last for atleast 30 days on single charge. It had also got different color wrist band.
All in all very good band. go for it.