Xiaomi Mi band is the best fitness band at a very cheap price. I have a very great experience with this band with a small devices you can do a lots of things. It has features like alarm, Incoming call vibrator, sleeping time and other more features. I have very well satisfied with this devices. Most of the people questions about the mi band is water proof or not.? answer is it is water resistance not water proof. It means that you can wear mi band for shower but not for the swimming.