Hey guys im back I tell. You about which band you have to buy.i think mi band 2 you have to buy because it have also many feature lile heart rate sencors and it is water proof ihave many fit band like intex 1, 2 mi 1, 1 pulzz, 2 and many more I have if you in trouble then ask to me I definately help you guys.and please like my review than I suppose you satisfy with my comment.