I have bought this phone for my brother and this phone is working fine and no any problem in this phone .i am telling you that sound qulaity is very good camera quality also good that is 1.3 .battery is also good if you charge its backup is 4 to 5 days. Preloded app also given in tjis phone that is facebook chaton . I can say this is best java phone by samsung.it is long lasting phone so I am advacing you can buy this phone