Redmi note 5 comes with snap dragon 625 soc which is an octa core processor. Its comes with 3 gb and 4 gb of ram with 32 and 64 gb of internal storage. It has 5.99 inch full HD + LCD display. Comes with dual nano sim with hybrid sim slot it has 12 MP rear camera with dual tone LED FLASH and 5 MP front comera. It has 4000mAh battery. And comes with fingerprint scanner. It has all kinds of sensors. The camera is bit modified compared to the redmi note 4. And it is stll running in android 7.0.talking abt the upgradation to redmi note 5 if u r having note 4 then I think its not necessary.coz it just have a big screen and quite improved camera but the same processor.go for someother phone in this price range if it provides value for money. If camera is the the priority go for this phone