Samsung z4 really a waste phone from samsung .i really hated this phone .waste of money.the camera of the phone is average .not soo good .and the phone always gets lagged ans some times auto reboot .i totally hated this .i am really dissapointed with samsung.please guys dont buy this phone .their nothing speacial features on this phone .only it has a brand as samsung .nothing more in itt .the battery performance also really poor