Side-by-Side Display Comparison

iPhone 17 Pro vs Galaxy S25 Ultra

Compare screen pixel density, physical dimensions, viewable screen area, resolution, and dot pitch between iPhone 17 Pro and Galaxy S25 Ultra.

Display Sharpness & Size Summary

Galaxy S25 Ultra has higher pixel density (+39.9 PPI)Galaxy S25 Ultra has +20.2% larger screen area

Sharpness WinnerGalaxy S25 Ultra+39.9 PPI (8.7% sharper)

Display Size WinnerGalaxy S25 Ultra+3.0 sq in (+20.2%)

Pixel Density Ratio1.09×Galaxy S25 Ultra has 1.1× the pixel density of iPhone 17 Pro.

Galaxy S25 Ultra features a pixel density of 498.0 PPI compared to 458.1 PPI on the iPhone 17 Pro. That is an absolute difference of 39.9 PPI. Galaxy S25 Ultra is 8.7% higher pixel density than iPhone 17 Pro.

Scale Lab · Physical Dimension Intelligence

Proportional Screen Dimensions

Galaxy S25 Ultra is +20.2% larger in area

Both screen silhouettes below are drawn strictly to scale relative to each other based on true physical width and height.

iPhone 17 Pro

Dimensions2.63″ × 5.72″(6.7 × 14.5 cm)

Viewable Area15.1 sq in(97.2 cm²)

Aspect Ratio0.46:11206 × 2622 px

Galaxy S25 UltraLarger Display

Dimensions2.89″ × 6.26″(7.3 × 15.9 cm)

Viewable Area18.1 sq in(116.9 cm²)

Aspect Ratio6:131440 × 3120 px

Specification	iPhone 17 Pro	Galaxy S25 Ultra
Pixel Density (PPI) Higher density = finer detail	458.1 PPI	498.0 PPIHigher PPI
Viewable Screen Area Total surface area (width × height)	15.1 sq in(97.2 cm²)	18.1 sq in(116.9 cm²)Larger Screen
Resolution	1206 × 2622 px	1440 × 3120 px
Total Pixels Rendered pixel count	3,162,132 px(3.16 MP)	4,492,800 px(4.49 MP)More Pixels
Screen Diagonal	6.3″	6.9″
Aspect Ratio	0.46:1	6:13
Dot Pitch Pixel spacing (smaller = tighter)	0.055 mm	0.051 mmFiner Pitch
Physical Width × Height	2.63″ × 5.72″ (6.7 × 14.5 cm)	2.89″ × 6.26″ (7.3 × 15.9 cm)
20/20 Acuity Distance Where individual pixels disappear	7.5″ / 19.1 cm	6.9″ / 17.5 cm

Display Analysis: Does Higher PPI Mean Better?

While a higher pixel density (PPI) means each individual pixel is physically smaller and harder to distinguish with the naked eye, higher PPI is not the only metric of display quality:

Viewing Distance Context: On a smartphone held 10 inches from your face, densities above ~350 PPI reach the human eye's resolving limit. On a laptop at 20 inches, ~220 PPI delivers equivalent visual clarity.
Panel Technology: Contrast ratio, peak brightness, color gamut coverage (such as DCI-P3 or Adobe RGB), and refresh rate (120Hz/240Hz) heavily influence image fidelity alongside PPI.
GPU & Battery Consumption: Denser displays require greater GPU rendering horsepower and battery power to push millions of extra subpixels.

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iPhone 17 Pro vs Galaxy S25 Ultra

Display Sharpness & Size Summary

Proportional Screen Dimensions

Display Analysis: Does Higher PPI Mean Better?

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