Samsung Galaxy

Samsung Galaxy S25 Ultra vs Samsung Galaxy S26 Ultra: screen size for websites

Same viewport. The Samsung Galaxy S25 Ultra and Samsung Galaxy S26 Ultra both give web pages 384 × 832 CSS pixels, so a site that fits one fits the other.

Samsung Galaxy S25 UltraSamsung Galaxy S26 Ultra
CSS viewport384 × 832384 × 832
Visible on first load384 × 712 (Chrome (Android))384 × 712 (Chrome (Android))
Device pixel ratio2.81252.8125
Physical resolution1440 × 31201440 × 3120
Screen size6.9″6.9″
Aspect ratio19.5:919.5:9
Tailwind breakpointbase styles onlybase styles only
Bootstrap tierxsxs
Full-width image needs1080px1080px
Released20252026

See your site on both, side by side

Paste your address (or localhost:3000). doesitfit shows it on the Samsung Galaxy S25 Ultra and Samsung Galaxy S26 Ultra at their exact sizes, next to each other.

Free, no sign-up. Or ask Claude, ChatGPT or Codex to check it.

What the difference means for your site

Width: 384px vs 384px

Identical, so text wraps in exactly the same places.

Height: 832px vs 832px

On first load a page shows 712px on the Samsung Galaxy S25 Ultra and 712px on the Samsung Galaxy S26 Ultra, so “above the fold” is the same.

Questions people ask

Is the Samsung Galaxy S25 Ultra screen bigger than the Samsung Galaxy S26 Ultra for websites?

Same viewport. The Samsung Galaxy S25 Ultra and Samsung Galaxy S26 Ultra both give web pages 384 × 832 CSS pixels, so a site that fits one fits the other.

What are the viewport sizes of the Samsung Galaxy S25 Ultra and Samsung Galaxy S26 Ultra?

Samsung Galaxy S25 Ultra: 384 × 832 CSS px (DPR 2.8125). Samsung Galaxy S26 Ultra: 384 × 832 CSS px (DPR 2.8125).

Do I need to test my site on both?

Not for layout: they share a viewport. Test once.

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