iPhone 17 Pro vs Samsung Galaxy S25: screen size for websites
The iPhone 17 Pro is 42px wider and 94px taller in CSS pixels. That’s enough for a layout that fits the iPhone 17 Pro to spill on the Samsung Galaxy S25.
| iPhone 17 Pro | Samsung Galaxy S25 | |
|---|---|---|
| CSS viewport | 402 × 874 | 360 × 780 |
| Visible on first load | 402 × 718 (Safari (iOS 26)) | 360 × 660 (Chrome (Android)) |
| Device pixel ratio | 3 | 3 |
| Physical resolution | 1206 × 2622 | 1080 × 2340 |
| Screen size | 6.3″ | 6.2″ |
| Aspect ratio | 19.6:9 | 19.5:9 |
| Tailwind breakpoint | base styles only | base styles only |
| Bootstrap tier | xs | xs |
| Full-width image needs | 1206px | 1080px |
| Released | 2025 | 2025 |
See your site on both, side by side
Paste your address (or localhost:3000). doesitfit shows it on the iPhone 17 Pro and Samsung Galaxy S25 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: 402px vs 360px
Headings and buttons wrap differently: a line that fits in 402px can break onto two lines in 360px. Anything with a fixed width between the two makes the narrower screen scroll sideways (fix it).
Height: 874px vs 780px
On first load a page shows 718px on the iPhone 17 Pro and 660px on the Samsung Galaxy S25, so “above the fold” differs by 58px.
Questions people ask
Is the iPhone 17 Pro screen bigger than the Samsung Galaxy S25 for websites?
The iPhone 17 Pro is 42px wider and 94px taller in CSS pixels. That’s enough for a layout that fits the iPhone 17 Pro to spill on the Samsung Galaxy S25.
What are the viewport sizes of the iPhone 17 Pro and Samsung Galaxy S25?
iPhone 17 Pro: 402 × 874 CSS px (DPR 3). Samsung Galaxy S25: 360 × 780 CSS px (DPR 3).
Do I need to test my site on both?
Yes if your layout has anything close to 402px wide. Test the narrower one first: it’s where things spill.
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