A phone with 4100 mAh Battery and Snapdragon 625 processor having Big little Technology is destined to give you just handsome battery back up.
This processor has a quality of shifting cores as per the requirement of your task. Using one or two task of checking mails will involve only single or double cores. And while playing heavy games all the eight cores will be involved. Such a mechanism uses battery very judiciously.
Also, this processor is best in mid segment that can handle any type.I repeat.Any Type of Games with ease. You will love playing games on it.
Besides, 4 GB RAM+ 64 GB ROM combination is deadly at Rs. 12, 999/-.
Full HD 1080p screen with additional "Reading Mode" given in this phone is just perfect for some people who love reading.
Another advantage is additional storage of Expandable storage up to 128 GB but with a disadvantage of Hybrid Slot with second SIM.
So, it is a great device for heavy gamers and readers.
But, it is definitely not for avid photographers. The Camera is 13 MP Primary and 5 MP Selfie but the output is not satisfactory. As always it gets beaten by Lenovo K5 Note hands down in this section. Even K4 Note has far better camera than Redmi Note 4.
For people who love photography, they must go with Moto G5 Plus that has same processor i.e. Snapdragon 625 and 4 GB RAM but reduced storage of 32 GB. With 12MP primary and 5MP Selfie but with better output Moro G5 Plus is just superb snapper. I will review about Moto G5 Plus in it’s section- Do read it.
But for people who want fast smartphone with battery back up i.e. heavy gamers.Redmi Note 4 is best option.