This Samsung Galaxy j2 mobile is very small and it contains only 1.5 gb ram and 8gb internal storage and the front camera is better and the back camera is bad and it has no clarity of pictures and if transfer the picture to another mobile it is breaking. And it contains android lollipop version and the mobile is contains less battery and it’s life time of battery is low. If we keep that mobile to charge it is taking so much time to charge. That’s the mobile is not updating to marshmallow.