Redmi note 4 a extended version of xiaomi redmi note 3 it comes in 3 segment .
Which is in 2gb ram and 16 gb rom , 3gb ram 32 gb rom and 4gb ram and 64 gb rom .
Speed of this phone is best as compare to other smartphone of this segment.
Camera quality is good but not so good ,
But in this price it is ok .
It has good fingerprint scanner, miui8 processor which is upgraded version of redmi note 3.
This phone is launched in india on 19 jan ,
On flipkart and redmi official website mi.com/india.
You can buy this phone on these websites .