Hii everyone.Samsung galaxy j7 duo is a very nice mobile.I was bought this mobile in two months ago.this mobile have 4gb ram and the mobile android version is 8.0( orio) .this mobile have 13 mp back camera at very high clarity and the front camera has 5mp rear camera and also this mobile is avery high fast mobile and this is have 32 gb internal memory and expendable upto 128 gb.Thanks for read my review.