One is incidence happen with my friend. He buys a new phone that was Xiaomi Mi 4i before 12 months. Whose main height is 2 GB RAM, 16 GB internal storage. 5 inches of HD display. 13 Mp rear camera and 5 Mp front camera. With a quite bit having good processor of second gen Snapdragon 615 64-bit octa core processor and 1.7 GHz processor. With 3030 mAh Li-ion battery. We can see that the specification of the phone is quite good but the thing happen with friend is the battery of the phone was swelling day by day. Due to which the screen of the phone and display of the phone is cracked. Because of heavy use age. The structure of the phone was damaged. internally. Due to swelling of the phone. So I will not recommend to buy this phone. Because of my experience happen with my friend. If you like the Mi phone it’s your choice but I will not suggest to buy any Mi phone Thanks for viewing my review and please like my review and also do is my my review helpful or not.