I use this smartphone over the 2 yers . Now its run on lolipop. Good phone and good performance day to day using . Its come with a samusng own chipset the core is a octacore. And a 2gb of ram. The display quality a is good and the viewing angle is also good. Rice colour and greatest bight and contact. The camara in this phone is also good. Its recode the video upto 1080p and the quality is also good. But in heavy using the phone heat up a little bit. Not overheating. The battery life is ok . On heavy using the phone battery life last anround 3 or 4 hrs. Thats all . Good phone in my opinion. .