Pros:
1)Many of the flagship phone does not have any ir blaster but redmi note 4 has that.
2)Battery backup is getting up-to 1 and a half day.
3)screen quality is nice.
4)It has full HD display.
5)All the nessary sensors you have.
6)Speaker quality is loud.
Cons:
1)Hybrid sim slot.
2)Avg camera.