I have purchased it in Nov'17 at a cost of 1300 Rs. From Mi app and from the very first day I fallen in love with this band.
It has very classy and attractive looks with sharp design and edges.When I more wore this it looks more beautiful than the images available on available on Mi portal.since it is very light weight comfortability of this watch is damn high.
I have noticed All the specs given on portal are available and working properly like accelerometer I just need to tilted my hand liitle bit and rest of work has been done by this band.Distance tracker, Steps, Sleeping time & quality are very accurate till yet.
I have used it for more than 16 days in single charging which is quite good in compare to my last band Mi 2.
Only one problem I have found and which is its touch work liitle bit slowly.
Apart from this I havn't found any defect or any coplexicity in using this.
Im totally satisfied by this band and it is worth to buy at this price.