Apple · phone · 2025

iPhone 17 Pro Max screen size

Apple's September 2025 flagship keeps the 6.9-inch 1320x2868 ProMotion OLED of the 16 Pro Max while adding the A19 Pro and a bigger battery. Its 440x956 viewport remains the widest iPhone CSS size, the key upper-bound test that phone layouts do not slip into tablet breakpoints.

CSS viewport
440 × 956
Physical pixels
1320 × 2868
Pixel ratio
3x
PPI
460
Screen size
6.9"

Media queries

Target this device (portrait)
@media only screen and (device-width: 440px) and (device-height: 956px) and (-webkit-device-pixel-ratio: 3) and (orientation: portrait) {
  /* styles */
}
Viewport width and up
@media (min-width: 440px) {
  /* styles */
}
Viewport width and down
@media (max-width: 440px) {
  /* styles */
}
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