As every one know this is the new mi band 2 it is more featured then its previous version it is more reliable then its previous Version. actually it has the same look but it has a very new and awesome feature, a heartrate sensor and its charging is awesome it also have a IP67 which is a waterproof resistance technology it has the same features as mi band like pedometer , distance, burnt calories, date and time , alarm Facility and other good facility including Notification and accept and reject facility and the watch is worth for its price a good product at this price