The iPhone XS has a 5.8-inch screen, and the iPhone XS Max has a 6.5-inch display. ... It has about the same footprint as the iPhone 8 Plus (0.04 inches shorter, 0.2 inches narrower, 0.07 inches thicker, and 0.21 ounces heavier), but obviously fitted with a larger 6.5-inch OLED screen that stretches to the edges.