Xiaomi Mi 4i is one of the best phones I have ever had. The bulit Quality of this phone is superb and the specification is just amazing. The display of this phone is FIVE inches which is full HD. The camera of this phone is very impressive. The photos are very clear and the front camera of this phone is nice. Their are some issues with this Phone too. After a heavy usage the phone heats and the body of the phone is sensitive so you have to handle it carefully. In my point of view the phone is the best in its segment so you can buy it.
Thank You