Samsung galaxy j2 ace is one of the worst phone.
As compare to its price, you may get a better phone than it like mi, lenovo etc at this budget. The phone having 1gb ram & 8gb rom, which you may get 2gb ram & 16 gb tom at this price. The battery backup is very poor, phone got hangs if u download and use more number of apps. The camera quality is cheap. In other words it says that it is full waste of money if u are buying this phone.
