Samsung j7 is an excellent mobile with 5.5 inch hd ips display screen .Its front camera and back camera of 13 megapixels and 5 megapixels with dual led flash .its special features is its battery backup with 3000mah battery .Its internal features like ultra saving data mode is of great use .Its android version is lollipop5.1.1 which will be upgrade to android malware .ilIts internal memory is 16gb which is sufficient for all use and external expendable to 128gb.Its ram is 1.5gb with octa core processor a 64 bit android version.