I had use this mobile from last 6 moths and I am going to tell my experience about samsung j2 ( 2016)
1) About performance it has quard cord 1.5 GHZ Processor
2) about ram it has 1.5 gb ram
3) about rom 8 gb rom you can expand upto 128 gb which is best in this price
4) about battery it has 2600 mAh it is average
5) it has very good display amloed HD 294 PP
6) It also support OTG
7) about camera it has 8 mp rare camera and 5 mp frot camera it has cmos sensor which is very good in this price
8) it also support 4G volte
9) it has 6.0 android which is best Overall its average phone in this price.