Samsung galaxy j2 is just okay mobile. Its not up to the mark . Its waste off money . the battery is not at all good . basic set is far better then this mobile about battery backup . battery wont even stay more then half a day. Its display size is of 4.7 inches which can b handy and the operating system is andriod os v5.1.1( lollipop) . processor is Exynos 3475. Its has 1gb ram, 8gb internal memory and memory can b expandable upto 128gb. To say about camera , its good with the camera: rear camera with 5mp with auto focus led flash and front camera with 2mp.