I bought Redmi Note 4 3GB Ram and I am using this phone from one week. I am sharing my 1 week experience with you guys , as I experienced this phone has 4100mAh battery which is much more. Once I charged my battery to 100% at the end of the it only comes around to nearby 36% by using internet as well as playing games, so it has good battery life. About the camera it has 13 megapixel rear camera & 5 megapixel front camera. For the Redmi mobiles Rear camera is always best for the price we are sacrificing so it has good camera quality. I had good expirience with this mobile camera. While talking about front camera it is also good for the price actually I am not happy with the front camera but I am delighted. This phone has hybrid dual sim slot that is you can put two simcards or one memory card and one simcard it is good but I would like to suggest Redmi that if we get dual sim as well as memory card slot also. This phone has 3 GB Ram that is good one for playing games and for operating the applications. it had never hanged since I bought this mobile.