Samsung galxy j2 is a cool device it has 1.5gb rab and 8 gb internal storage it has a 1.4GHz Quad-Qure processer and expandable memory upto 256 gb via micro sd card it consist of 8 mega pixel rare and 5 mega pixel front with selfi flash it has a dual sim 4g and its battery is better than any other mobile phone the device screen is 5 inches Android is 6.0 marsh mellow the smartphone sensor measure phyzically quantities and trans meted them to application processor its a coool device insha allah I can buy this mobile thank u