Iphone 5s is nice device but one major problem is battery backup. It is only 1570mah battery. Its mean only 8 to 10 hours using device. When I am using internet or litsen music its only running maximum 3 to 4 hours. And one another problem is still apple can not launch 128gb model in iphone 5s why?
And can not even put external memory card in iphone.
