Samsung galaxy j7 is a good phone of Samsung it has best phone ever it has primary camera 13megapixel , and Autofocus with led flash and touch focus detection panorama HDR , and secondary camera type is 5 megapixel and display size is 5.5inches and super amold display colours type us a 16m and phone operating system is android marshmallow 6.0 and phone processor type is octacore 1.6ghz and video recording type is 1920×1080 and phone network type supported is 4g, 3g and 2g and most amazing point is battery capacity is 3300MAH talk time up to 23h and removable battery Samsung galaxy is a greatest phone.!