Screens and Sizes The Galaxy and Bionic both have 4.3-inch screens. But the Bionic’s 960-by-540 pixel screen is a little sharper than the Galaxy’s 800-by-480 screen. The iPhone 4S has the tiniest 3.5-inch screen, but is the sharpest with 960-by-640 resolution. The Galaxy is also the biggest phone with a height of 6 inches, a …