iPhone 17 Pro Max — 457.6 PPI
The iPhone 17 Pro Max features a 6.9-inch Super Retina XDR OLED display at 1320 × 2868 pixels with 120Hz ProMotion.
457.6
PPI
Retina-classAt 458 PPI, this is an exceptionally high pixel density. Well beyond the perceptual limit for most viewing scenarios. Common on flagship phones where manufacturers prioritize display specifications.
Compare with similar phones
458.1 PPI
iPhone 17 Pro
1206×2622 · 6.3″ · Retina-class
461.4 PPI
iPhone 17
1179×2556 · 6.1″ · Retina-class
456.9 PPI
iPhone 17 Air
1260×2740 · 6.6″ · Retina-class
457.6 PPI
iPhone 16 Pro Max
1320×2868 · 6.9″ · Retina-class
458.1 PPI
iPhone 16 Pro
1206×2622 · 6.3″ · Retina-class
459.6 PPI
iPhone 16 Plus
1290×2796 · 6.7″ · Retina-class
Calculate any screen's PPI
PPI Calculator
√(W²+H²) ÷ size — precise to 0.1 PPIUnit:
in
Use the diagonal printed on the box or spec sheet.
in wide
For when you measured the viewable width with a ruler.
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PPI
—PPI = √(W² + H²) ÷ diagonal · Retina-class estimate ≥ 300 PPI (approximate; depends on viewing distance)