If you are willing to buy Samsung Galaxy j7 then my suggestion is not to buy it.
.As its sound quality is not good comparing with other phone you can buy in same range of phone with better sound quality.
this device is of no us you can find better smartphone with same range of price
its style and design were Ok nothing so good in that
as it has a very limited features nothing exciting features in that and this phone also hangs too much comparing with other phones. its battery backup is also not good and it is also very slippery too. its ram is not as much high as comparing with other phones.not so much reliable and durable it also not have good battery backup.