However, the Xperia Z also has 2GB RAM, whereas the Galaxy S III only has 1GB. When faced with tasks such as heavy multitasking, both devices perform similarly, but judging by the specs the Xperia Z is equipped to cope better.Winner: Xperia ZRound 4: CameraThe Galaxy S III???s 8 megapixel camera can hold its own against any other smartphone around, producing bright images with true colour represen