Samsung galaxy J7 is not very good mobile in this price because it has not good quality according to their price. It has only 1.5 GB ram which is not to good primary and secondry cameras are 13MP and 5MP respectively and it has not 4G supportable device.
Samsung galaxy J7 mobile is inferior quality mobile in this price rate the diaplay and camera is also not in full hd quality and not good performance of mobile.