I recently purchased xiaomi Redmi note 4. Have been using it since last 10 days.
This phone has 5.5 inch screen.
It comes with 4GB RAM and 64GB internal memory.
It has dual hybrid sim slot.
Battery is 4100mah
Primary camera is 13mp and secondary camera is 5mp.
Its run on Android 6.0 marshmallow.
Pro:
1) Even after high usage, batter lasts for atleast 24hours.
2) Processor is quite fast. Even after high usage I didnt faced any lag.
3) Finger print sensor is in back which makes it easily accessible.
4) Sound quality is amazing.
Cons:
1) Camera quality is not very amazing. Primary is good and secondary is ok.
2) Takes time to charge. Around 3hrs for 100% .
If you are a selfie person, then this phone is not for you else it is a great choice.
I really liked this phone.