Samsung galaxy is not that great device compare to its price.i am using the 16gb momery and 1.5gb ram phone.i am using this device since 2015 and I did not face any kind of problem with this device.the battery of this device is very great 3000mAh is the capcity of the battery of this device.l personelly love the screen of this device.the screen brand of this device is super amond this device is come with 2 year replacenment warenty.at the end the profermonce of the processor.i love playing high graphic games on this device.