I had buy this mobile on 13th November 2014 on mi 1st open sell.today(05.03.16) approx 1 year 5 month gone.but, it surprised me about its reability.
Going to REVIEW after 1 year 5 month:-
A long time gone but, there are NO laziness, heating issue, any hardware issues till now, ram management prob, network capturing problem, battery problem NOTHING.IF me Talking about Battery.its give about 5-6 hours screen on time.U CAN WATCH 3 HD MOVIE EASILY
Gaming:you can play all normal game, Asphalt 8(in medium graphic label)BUT, some lag while playing NOVA 3, GTA SAN ANDREAS.{ITS considerable for this old device as well as it’s old version on GPU Adreno 300}
CALL SOUND QUALITY AND NOISE CANCELLATION working FINE
CAMERA:-supab.both(front, rear)
SYSTEM UI:-MI is known for its custom UI.very easy to use, nice UI decoration, you can do root officially that, help to improve your mobile battery usage, gaming performance so on.
In my opinion RED MI 1S the best mobile at this price segment