My father using mi4i from 1year.it is good phone., nice look, strong boby, and its camera is superrb.no dout about.its clearity and focus is awesome.2 gb ram.
So can download many apps.display quality is good.sound quality is good and clear.easy in hhandling.but get hangs some time.and litle heating problem.and hab no memory card slot.but over it is good product from xiomi.and it slim too.comfort to hold.recommended.