My friend has a xiaomi mi4i. I used it for a full weak .
PROS
Stunning display.
great colors production.
camera performs better than average
can play hd games in full resolution
nice design architecture
CONS
Bad battery performance
phone heats up a lot
temperature reaches to 48 degree after playing 15 minutes continous gaming
plastic back
bad customer support.
CONCLUSION
In my opinion if you are moderate user you can buy this phone.But for gamers this is not a device .Xiaomi has a tradition of launching good devices in china as compared to india.
THANKS TO MOUTHSHUT FOR PROVIDING SUCH A PLATFORM TO US .