Personally speaking when I was going to buy a second hand j7 phone .then everyone was wanted to sale it out. even 2 months older phones . because it is having hanging problem and if you are going to buy a j series then I buy j5 because it is best in dimensions as compare to j7 .you cant handle it in your pocket .no doubt it has all the features but I persoanally dont like it. batrry backup is not so good.you cannot operate it with oone hand easily. I will sughest not to buy this .go for other mobiles by samsung of same prices