Samsung star dues is one of the cheapest smartphone which has very low or poor specification and it has very kind of processors and camera. Overall perfomance of galaxy Star duos is g9od but not impressive as compare to other brand belong to price comparison. It you want mobile with better camera you can try it but performnce is too much worst. I hate it.
I suggest strongly to dont buy such smartphone and dont waste your money and time . Increase your budget and try to purches samsung j7 or latest model.