Samsung J series I guess is the best of all compared to S series or E series. J7 is very good in size display and its features are just soo good n amazing. It also has S bike mode for me it was very beneficial while driving. Only samsung J7 , J5 , J2 has it none other samsung models have this feature. I loved this feature. But it sound quality is not that loud its very low but otherwise its a very good. Its stylish back n metallic frame makes it more attractive n stylish to carry. Specially the golden colour which is now in trend. Must use it!