This mobile is more reliable for use of normal people like middle class people. one this is that operating system is well but some time is hanged.The samsung all mobiles are hange while using more app. video clearity is well and the camera result is too good that the image will be zoomed at 8 step it is very good compare to other compnay. Battery backup is well but at which time it being used in 6 month the battery is suddnely down. it is not usr for longer time.it is less costly and more useful.