I used this for someday and my experience was awesome. Let's share my experience with the band.And I will describe it in pros and cons.
Pros:
Sleep tracker: sleep tracker is best, it tracks your sleep automatically no need to log before sleep and after waking up to stop. It makes it more convenient.
Exercise tracker: logging exercise is very best there is no need to log.
Hr monitor: hr monitor works well, it checks for heart rate at rest vs active. And using this it shows the number of calories burn.
Caller id: It works well if you have habit of keeping mobile on silent then it is for you, it vibrates when you get call.
Now let's go to cons.
Cons:
Buckle looks very cheap you are paying 10k and quality is not so good. And there is no wireless charging you to go for wires.
But I highly recommend this band.