I havethis mobile.its a very nice mobile.it is not hang.savelarge amount of data.Good camera result.I have a samsung j2 and a jio sim. While going on the network mode its WCDMA When I try to change it to LTE WCDMA .Samsung Galaxy J2 USER REVIEWS AND RATINGS. Samsung Galaxy J2 smartphone with 4.70-inch 540x960 display powered by 1.3GHz quad-core processor alongside 1GB of RAM and 5-megapixel rear camera.The Samsung Galaxy J2 2016 is a follow up version of the Galaxy J2 launched in 2015. Galaxy J2 2016 has been re-engineered