1. A much bigger screen
Samsung Galaxy S3 comes with a 4.8 inch screen and this makes doing certain things on mobile much more easy. With a wide screen, watching movies is much more enjoyable and everything looks so realistic. iPhone 5 comes with a tiny 4-inch screen with a resolution of 1,136×640 while Samsung Galaxy S3 has a generous 4.8-inch screen with 1,280×720 pixels resolution.