Hiii friends . iam using this redmi 2 prime mobile past one and half year. This is the best phone for my ruff use. But the problem is heating on the backside. it will not cause any problem to phone. It will be reduced by keeping phone brightness low, and using battery cooler apps. The best attractive thing in my phone is it will support 4g. The software system is good. They will release update every year once. finally, my suggestion is no other phone is better than redmi to support 4g in that low cost.