The Mi Band 2, like its predecessor, has two components - a capsule and a band. The band is made of a rubber-like material that is very comfortable. The Xiaomi Mi Band 2s capsule fits snugly into the band and not once did we worry that it might fall out. The capsule has its display on the top, with a big circular button that lets you check stats such as the number of steps youve taken, the distance youve covered, the calories youve burned, etc. The Mi Band 2 also features automatic sleep tracking, which triggered itself fairly accurately. If you want a band that vibrates when you get calls, texts, and app notifications, then the Mi Band 2 is a good purchase. If you hate loud alarms or dont want to disturb others sleeping in the same room, silent alarms are just great. The Mi Band 2s battery life is exceptional. After eight days of use, the battery reported that it was still 75 percent full.