Galaxy J7 is the one of the best mobile from Samsung and it is best in J series too.
It has best features with its touch speed up.
It has some features with advanced technologies, and the back camera quality was simply super and front camera quality is some what better and it wasn’t stuck when we use web(or) two or more applications as like other Samsung mobiles, as of now Samsung galaxy J7 is the best mobile in J series, anyway it has some negative things like short battery life and long time charging these are not key points to consider