iPhone 15 / 15 Pro vs iPhone 16: screen size for websites
Same viewport. The iPhone 15 / 15 Pro and iPhone 16 both give web pages 393 × 852 CSS pixels, so a site that fits one fits the other.
| iPhone 15 / 15 Pro | iPhone 16 | |
|---|---|---|
| CSS viewport | 393 × 852 | 393 × 852 |
| Visible on first load | 393 × 699 (Safari (iOS 26)) | 393 × 699 (Safari (iOS 26)) |
| Device pixel ratio | 3 | 3 |
| Physical resolution | 1179 × 2556 | 1179 × 2556 |
| Screen size | 6.1″ | 6.1″ |
| Aspect ratio | 19.5:9 | 19.5:9 |
| Tailwind breakpoint | base styles only | base styles only |
| Bootstrap tier | xs | xs |
| Full-width image needs | 1179px | 1179px |
| Released | 2023 | 2024 |
See your site on both, side by side
Paste your address (or localhost:3000). doesitfit shows it on the iPhone 15 / 15 Pro and iPhone 16 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: 393px vs 393px
Identical, so text wraps in exactly the same places.
Height: 852px vs 852px
On first load a page shows 699px on the iPhone 15 / 15 Pro and 699px on the iPhone 16, so “above the fold” is the same.
Questions people ask
Is the iPhone 15 / 15 Pro screen bigger than the iPhone 16 for websites?
Same viewport. The iPhone 15 / 15 Pro and iPhone 16 both give web pages 393 × 852 CSS pixels, so a site that fits one fits the other.
What are the viewport sizes of the iPhone 15 / 15 Pro and iPhone 16?
iPhone 15 / 15 Pro: 393 × 852 CSS px (DPR 3). iPhone 16: 393 × 852 CSS px (DPR 3).
Do I need to test my site on both?
Not for layout: they share a viewport. Test once.
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