Hello friend, I am so very happy because I have this samsung galaxy j7 prime.its product very good product.most of file open yet not hang and no network problem any time.its product purchase prize 18, 790 .its product launch date 19/september/2016.its product ram 3GB and internal memory 32GB.its mobile screen size 5.5 inches.and mobile color black and gold.this product for my best .i am satisfied this produc t.its mobile sound is very nice.so guys I recommoned that please try this mobile very good product.