We all know that xiaomi has very aggressive pricing in india. All the products of xiaomi is value for money. I bought new mi band last month .
I feel it is very good product for the price. I only feel that the it is not accurate very much. It shows approx readings. Heart rate sensor is also there. It works fine for me.
Overall I would say that it is very good option if you want to buy a smart watch . It is very comfortable on wrist. It is not traditionally circular dial but you will not find it unknowing after using it for few days.
Battery life.
Most asking questions for any smart watch is battery life. I got good battery life for my mi band 2. I charge it for 2 hours and it last me for about 2 to 3 days.