Samsung Galaxy J series is one of my favourite series, even this J7 hand set is really good, I personally used this hand set, pweformance is So good, In this Mobile Android is 5.1 Lollipop, which is Really good. and 2 GB RAM that is why this Hand set is super fast. and Camera is 13 Mega pixel auto focus that is really great. and front Camera too. the best thing in all Samsung Mobile is battery Capacity which is Too good