This is amazing band. first I am talking about its weight it is too light in weight( 22.1g) and the other quality that I like is water resistance upto 50m I prefer to buy this band this is some new qualities that mi band 3 has not has eg music crontoler and wallpaper of our own its chariging is too fast. their single charge last upto 20days and the other quality is security that mi band 3 has not have pin code. they give us notifications and to deny or mute the but the thing that is why I give 4 star is that their is no speaker in band I hope in mi band 5 their is also speaker in that. otherwise it is amazing band.