"Nokia also you can try but Here Samsung is cheap and best and also seems and looks more beautiful than Nokia and others"
That's your personal opinion...which is wrong.
Samsung - cheap, pretty but poor quality components.
Nokia - medium priced, not as pretty but better quality than Samsung.
Apple iPhone - expensive, pretty but with the lowest quality components of all mobile phones. (the camera unit costs Apple less than �2 to buy)
Sony Ericsson - medium priced, good looking and contains the very best quality components of all mobile phones. (contain excellent quality sony cybershot cameras)