Hello friends I used samsung galaxy j7 2016. I don’t think it’s much good as people saying because battery backup is not much good and I think all J series having some netwrok issues. And 1 more issue I was faving in J series when you shutter down and enable flight mode it take time to enable flight mode you can confirm if you think I am worng. In other series it open suddenly. Some improvement needed in j series. But features is good. And all samsung company reduce rates of mobile very soon beacuse of them we face problem while reselling on olx and quiker. And all samsung mobile look same.