Hello Everyone Just got my Mi Band 2 yesterday. And so far I am enjoying it lot. It is fitness tracking device which is tracking details of walking, running, sleeping, etc. Its tracking system is almost perfect. I am quite happy with the results. With that it is also having heart rate system so that I can track heart beats too. Though I am yet to understand its concept yet. (if anyone has experience then please tell me how heart monitoring system is working). With all tracking features it is also having few other features, like app notifications and alarms. So it is really good product. Its price is quite low in budget too in compare to other fitness tracking belts. So if you are thinking about one then keep this one in the list. I had good experience with first mi band, so that's why I thought about the same company. And I am happy with my decision. So I though about reviewing here. If anyone have any question regarding same then happy to ask.