Okay lets start with its specification.
5 inch HD display
3GB RAM
32 GB internal storage
Android 6.0 with MIUI 8
13MP rear camera 5MP front camera
Fingerprint , IR sensor, etc
4100 mah battery
Snapdragon 435 processor
And much more.
So coming to my opinion
Best budget smartphone after Redmi 3s Prime. Camera is improved in this device, also this device has 2.5D glass which makes swiping from sides more easier and smoother. Battery is also very good. The standby time is 2 days on average use with 7-8 hours of screen on time. Also Xiaomi has promised to give Android N 7.0 for this device. Everything runs very easily. Thinking about running heavy games on this device, no problem it can easily handle them. There is no heating problem but it becomes warm when the room temperature or surrounding temperature is more than 47°C. Otherwise no problem. If you are thinking of buying a device under 10K go for it. Do buy 32GB variant only, don’t go for 64GB. And the most important thing hybrid sim slot is there which means you can use 2 sim cards or one sim and Sd card. This can be fixed if you want to use 2 sim cards and sd card, just buy a sim extender. Problem solved. And jaldi ja ke lelo, vadiya phone hai.