Samsung Galaxy j7 is a very good phone.
Hang and Lacks: It hangs many times if you have use this phone still one hours or two hours.
Android version: It comes with android Marshmellow( 6.0) .Samsung Galaxy J7 has 5.5 inch super amoled display of 1280×720 pixel rezelution.
Camera: Samsung Galaxy J7 has 13MP secondary camera and 5MP primary camera.
Ram and processer: It has 1.6Ghz octa core processor and 2gb ram which is not expectful on its range.
Supported Networks: Samsung galaxy J7 supports 4G and 3G networks.
Colors: Samsung Galaxy J7 comes in three colors like black, golden and white.