Apple's iPhone has evolved dramatically in size over the years, from the humble 3.5-inch screen of the first device in 2007 to the recently-announced 6.7-inch iPhone 13 Pro Max. The late Steve The iPhone X is also a full ounce lighter than the iPhone 8 Plus (6.1 versus 7.1 ounces). Swipe to scroll horizontally. iPhone 8: iPhone X: iPhone 8 Plus Screen Size: 5.8 inches: 5.8 inches: 6 Size: 5.8 inches, 84.4 cm 2 (~82.9% screen-to-body ratio) Resolution: 1125 x 2436 pixels, 19.5:9 ratio (~458 ppi density) Apple iPhone 8 Plus; Apple iPhone SE (2020) More related devices Super Retina XDR OLED, HDR10, Dolby Vision, 800 nits (HBM), 1200 nits (peak) Size. 5.5 inches, 83.4 cm 2 (~67.7% screen-to-body ratio) 6.1 inches, 90.2 cm 2 (~86.0% screen-to-body ratio Apple iPhone 7 Plus specs compared to Apple iPhone 11. Detailed up-do-date specifications shown side by side. Size: 5.5 inches, 83.4 cm 2 (~67.7% screen-to-body ratio) 6.1 inches, 90.3 cm 2 B49RP.