Samsung 2ON sch w619 is fantastic mobile . I really like this mobile it has a dual sim technology helps us to mange two numbers and nice adjust our phone without any mange ment it is really nice phone ever. it is also a light weight 140 g to carre to easy and it is slider phone. and the memory extended is 1 gb and also camera is fantastic 4 digital 200 m with led flash light.it’s really nice phone to use.