If you want to buy a all rounder smart phone in the in the range of 13 k go for this device.bcoz if I am paying this much amount I wanted to be completely satisfiy.which indeed I am after using this phone.
pros;-
-excellent camera quality(13mp and 8 mp)
-ultra hd i.e., 4k video recording
-lovely battery backup(around 1 to 1.5 day on stand by)
-excellent xioami services
-3 gb ram, 2.5 ghz processor(my phone never get hanged, never:)
-excellent mettalic body(surely it will drive you crazy)
-no heating
-fast charging(save yur a lot of)time
CONS
-no card slot limited to 16 gb
-single sim(to overcome this I used an extra phone)
-3g phone(this is most annoying part of the phone, bt this prblm can be overcome)
The reason behind choosing this phone over other device was that it was providing me every thing I was looking in a device.
so if u r thinking to buy mi4.
I suggest you to go for it.