Samsung j7 is the best mobile todays days.i purchase it and having good respose about this mobile.you can go to this.mobile having best feature is that if you keep it up mobile then it vibrate that give you massage that something massage or sms comes.
It other feature is battery back is best having power mode and double power mode fuction.
Give a great display
No hang problem
Ram is good
Looks like a beauty
Ultra data saving mode
You can update it to marshmello android version.6.0.1
So all over it is good feature you get in one pack
So go and ask about more feature about this mobile.well friend visit your near samsung mobile shop and ask about this mobile that you can get the complete package.