Samsung j2 is one of the worst mobile. After using it for a month it started to get hang. The wifi and bluetooth stopped working.
Apart from that it has 1 gb ram which is low to handle day to day task.
It has only 8 gb of rom which is apparently quite low.
The primary camera is of 5 mp which clicks worst pictures.
The front facing camera is of only 2 mp.
The only good thing about this mobile is that it has 1.3Ghz Quadcore processors since the ram is of only 1 gb I can barely handle multi-tasking.
It runs on 5.1 lollipop.
High graphics cannot be played it gets lag a lot.
Overall its a worst mobile pleasd dont go for it.