Mi4i is good phone in terms of following things:
1) Camera Quality with 13mp Front and 5mp rear
2) Touch and Gesture handling with Android Lolipop OS.
3) In terms of Price too Rs 12, 999
4) Have OTG support too. But, this phone can lack behind due to its heating problem.
1) If we are using 2 or more app’s simultaneously then the phone starts heating up.
2) This phone do not provide memory card slot(OTG Pendrive can be used as alternative).
3) Out of 2gb ram, the internal app’s and OS services itself occupies 1 gb of memory.
4) Mails are kind of delayed. Not real time.
5) Earphones are not provided with the Mobile Accessories.
6) 12gb of internal space available.
I Would rate 2 out of 5 for this phone. But I’m happy using it for clicking pics.