Samsung Galaxy S25 & S26 Screen Sizes: Inches, Resolution, PPI

Quick answer: The Galaxy S25 has a 6.2-inch display at 2340 × 1080 (416 PPI). The Galaxy S25 Ultra is 6.9 inches at 3120 × 1440 (501 PPI). For 2026, the Galaxy S26 grows slightly to 6.3 inches while the S26 Ultra stays at 6.9 inches.

Screen size is the diagonal measured in inches. Resolution is the pixel count. Pixel density (PPI) is how tightly those pixels are packed. All three matter for different reasons, so the chart below lists them together — plus the approximate CSS viewport width developers actually design against.

Galaxy S25 screen sizes

Model	Screen size	Resolution	PPI	Aspect ratio	Refresh rate
Galaxy S25	6.2″	2340 × 1080	416 PPI	19.5:9	120Hz
Galaxy S25+	6.7″	3120 × 1440	513 PPI	19.5:9	120Hz
Galaxy S25 Ultra	6.9″	3120 × 1440	501 PPI	19.3:9	120Hz
Galaxy S25 Edge	6.7″	3120 × 1440	513 PPI	19.5:9	120Hz

Every Galaxy S25 uses a Dynamic AMOLED 2X panel with a 120Hz adaptive refresh rate and 2600-nit peak brightness. The Ultra is the only model with a marginally different 19.3:9 aspect ratio because of its taller, flatter design.

Galaxy S26 screen sizes

Model	Screen size	Resolution	PPI	Aspect ratio	Refresh rate
Galaxy S26	6.3″	2340 × 1080	411 PPI	19.5:9	120Hz
Galaxy S26+	6.7″	3120 × 1440	513 PPI	19.5:9	120Hz
Galaxy S26 Ultra	6.9″	3120 × 1440	500 PPI	19.5:9	120Hz

The biggest year-over-year change is the base model: the S26 moves from 6.2 to 6.3 inches, nudging it from the compact tier into mainstream territory. The Plus and Ultra keep their 6.7″ and 6.9″ diagonals.

Browse the full Galaxy S lineup or every Samsung screen size for older models.

Physical size vs CSS viewport width

The inch number is the diagonal of the glass. It is not the width your CSS layout sees. Samsung phones report a much smaller logical viewport because their device pixel ratio (DPR) is around 3.

Model	Resolution	Approx. CSS viewport (portrait)	DPR
Galaxy S25 / S26	2340 × 1080	~360 × 780	~3.0
Galaxy S25+ / S26+	3120 × 1440	~412 × 891	~3.5
Galaxy S25 Ultra / S26 Ultra	3120 × 1440	~412 × 891	~3.5

These CSS viewport figures are approximate. Browser UI (address bar), display scaling, and font-size settings all shift the effective values. Confirm the real numbers on a device with the viewport checker and read viewport width vs screen width vs DPR before hard-coding breakpoints.

Which Galaxy S size is right for you?

• One-handed use: The 6.2″ S25 or 6.3″ S26 are the easiest to reach across. True compact phones barely exist anymore, so these are as small as the flagship line gets.
• Balance of screen and pocketability: The 6.7″ S25+ / S26+ give you a bigger canvas and a sharper 1440p panel without Ultra bulk.
• Maximum screen and S Pen: The 6.9″ S25 Ultra / S26 Ultra are the largest, sharpest displays in the range.

Want to see the difference at true scale? Compare the S25 vs S25 Ultra or line up the S25 vs S26 side by side.

How to check your own Galaxy screen size

Your phone's resolution is fixed per model, but you can confirm the live values in seconds:

1. Open the screen resolution checker on the phone to read the reported pixels.
2. Use the viewport checker for the CSS width your browser exposes.
3. Check device pixel ratio to see how physical pixels map to CSS pixels.

For the physical diagonal, Samsung lists it on the spec sheet, or you can measure corner to corner across the active display (excluding the bezel).

FAQ

What size is the Galaxy S25 screen?

The Galaxy S25 has a 6.2-inch Dynamic AMOLED 2X display with a 2340 × 1080 resolution and 416 PPI. The S25+ is 6.7 inches and the S25 Ultra is 6.9 inches.

How big is the Galaxy S25 Ultra display?

The Galaxy S25 Ultra measures 6.9 inches diagonally with a 3120 × 1440 resolution at roughly 501 PPI and a 19.3:9 aspect ratio.

Is the Galaxy S26 bigger than the S25?

The base Galaxy S26 grows to 6.3 inches from the S25's 6.2 inches. The Plus (6.7") and Ultra (6.9") keep the same diagonals across both generations.

What is the Galaxy S25 screen resolution in CSS pixels?

The S25's 2340 × 1080 physical resolution maps to roughly a 360 × 780 CSS viewport at a device pixel ratio near 3.0. The exact value depends on browser UI and scaling — verify it with the viewport checker.

The short answer

The Galaxy S25 is 6.2 inches, the S25+ and S26+ are 6.7 inches, and both the S25 Ultra and S26 Ultra are 6.9 inches. The 2026 S26 base model steps up to 6.3 inches. For layout work, remember the CSS viewport (~360–412px wide) is far smaller than the marketing diagonal.

Next: see the full Galaxy S25 specs, compare S25 vs S26 vs S26 Ultra, or read mobile screen sizes in 2026.