In my opinion the samsung j2 is very good mobile. Becouse it has best quality of graphics. It has Lolipop 5.1 and octa core processer. Best amoled screen And High defination vision
I Love This mobile. IF you Want To buy any Mobile Please buy Samusung j2
And At last This Phone Have 2 Gb ram And 64 gB expandable Memory.
Full speed Mobile And LONG lasting battery
I Charge My Mobile Once And It Works Full day
In It I Watch Movies, Videos Etc
And 4G Enabled Phone
and You Can use 4g sim.