I have used many of Samsung mobiles. So I will give a true review that according to me "Samsung-j2(2016)" is not a great phone. But the price range is good for its specifications and also a good Brand. Samsung company launches 2016 model by changing some specification in older j2 model but not very much changes have been made. So I will say the older model is more better due to its lower price and moderate specification. A good battery life available in both the models. And also a good display( Super amoled display) So I will say you can go for any of the phones. You will not dissapointed.
2600mah battery
8Mp camera
1.5gb ram
and a great design make it stylish.