Samsung j7 mobile has
16gb internal storage and 1.5gb RAM
13MP back camera and 5MP front camera
Android version id 5.1 lollipop upgradable upto 6.0.1 marshmallow
This mobile is good features but cost is too high that is around 18000
So according to cost this mobile is waste to taking because we have more mobile more than this features bellow 10000
And this mobile has 3120 battery capacitythis it is good
This mobile is avaliable in both single sim and dual sim.
I think dual sim batter than single sim