Samsung Galaxy J2 is a very good phone.Samsung galaxy j2 Android os v6.0 operating system and 8GB internal memory . it has Ram of 1.5GB. samsung j2 is a good mobile phone. its camera is very nice 8 mp Auto fous LED flash and it also support 3G and 4G. it is amazing phone .it is nice and good looking phone. but it has only one problem that it gets some times hanged but although its very good its my first mobile phone. its good than other smart phones in this cost.