Glaxy j7 have a big issue about applications u cant move applications to memory card but ram is 1.5gb and the hard 16gb thats good samsung glaxy j7 is a good product its sounds quality is perfet I have buy a phone from a nearby shope but its display got damage my ffiends thell u should bay your sell from the main branch of samsang they will give you the real product but u buy it from a shop he gives you the 3rd quality product I have send my sellphone to samsang glaxy and after one mounth they give the ammount well thankx samsang for that