Ive been using the Mi band for a very long time and I must say that the band is really good.
The important and really good thing about this band is that the battery life, it is absolutely brilliant. The band is very comfortable and is very good.
The band which I have been using is in black strap and I really like this one because it looks very good on my hand.
The band has given me almost 33 days of battery life which is very impressive and it does not take too long to charge, it takes about 4 - 5 hours to charge the whole battery of the band and it charges pretty fast
One of best the thing about the band is that it monitors how long you you have slept and is really impressive, it shows when exactly you went to sleep and when you got up and shows light sleep and deep sleep where it is very easy for us to monitor our sleep time
It is not too expensive also and it costs around 1000 rupees