I purchased this band from Amazon. It cost me around 2000. It is a great band with lots of features like it has abutton at the bottom of the screen by this you can accept or reject the calls by using your band. It also counts your steps. very good band in this range.
As MI company products are long running. Lots of features like sleep tracking. its battery backup is awesome. it lasts long up to 2 weeks. its a good fitness band. it is also waterproof. I bought this because I want to track my walking steps and sleep tracking.
It is very easy to setup.it also has a heart rate monitor but it is lacking in one thing that its look and design. Overall it is a good smart band.