Hello friends I am a user of this Xiaomi Redmi 4 .
firstly I want to tell you that it's a great deal in this price range. but there is also Pros & cons on this mobile.
Camera - they say it's a 13 MP camera on the back of this phone but it's just a average camera. I must say it's not real 13 MP camera beacuse I used more 13 MP cameras phone like Samsung Galaxy S4 and that was far better camera & also lots of things about that camera. it's not worst but not good.
Performance - Performance wise it's a good phone in this price range. smooth and fluate performance. some time it stuck but it can be ignored.
Sound Quality - it's not great but also it's not worst. it's only good only because of this price range.
Fingerprint sensor - it's really great. instant working properly. all the time it works properly.
Screen - it's a 720p screen. and I think its good in this price point. good viewing angels ??
Gaming - I don't use very heavy games in this phone but normal games are works smoothly and properly and I think heavy games also can work properly.