iPhone Air vs Pixel 9: screen size and viewport
The iPhone Air lays web pages out at 420 × 912 CSS px with a pixel ratio of 3; the Pixel 9 at 412 × 924 with 2.625. The iPhone Air is 8 px wider, and the Pixel 9 is 12 px taller.
The two screens side by side
Specs compared
| Spec | iPhone Air | Pixel 9 | Difference |
|---|---|---|---|
| Viewport, portrait (CSS px) | 420 × 912 | 412 × 924 | +8 px wide, −12 px tall |
| Device pixel ratio | 3 | 2.625 | +0.375 for the iPhone Air |
| Physical resolution | 1260 × 2736 | 1082 × 2426 | iPhone Air: 31% more pixels |
| Aspect ratio | 19.5:9 | 20:9 | Pixel 9 is taller |
| Visible height, portrait, with browser bars | ~722 px | ~828 px | −106 px for the iPhone Air |
| Landscape width (CSS px) | 912 px | 924 px | −12 px for the iPhone Air |
| Visible height, landscape | ~370 px | ~332 px | +38 px for the iPhone Air |
| First released | 2025 | 2024 | 1 year apart |
| Engine in MobileCheck | WebKit (Safari) | Chromium (Chrome) | different engines |
CSS px are the units media queries see. Visible heights subtract the status bar and the Safari on iOS and Chrome on Android bars as set in our device profiles; real bar heights vary with settings and scrolling. The release year is that of the first model with each screen.
What this means for your layout
How the width difference affects your layout
The iPhone Air is 8 CSS px wider (420 vs 412, 2% more). One common breakpoint falls between them: (min-width: 414px) (a common large-phone test width) matches the iPhone Air but not the Pixel 9, so a rule written for that width applies on only one of the two.
In a 2-column card grid with 16 px page padding and 16 px gaps, each card is 186 px wide on the iPhone Air and 182 px on the Pixel 9. Check that buttons, prices and long words still fit in the narrower one.
Pixel density and image sizes
The iPhone Air has the denser screen: 3× against 2.625×. A full-width image (sizes="100vw") needs about 1260 px on the iPhone Air and 1082 px on the Pixel 9 to look sharp.
With a srcset such as 640w, 828w, 1080w, 1290w, 1440w, 1640w, 2048w, the browser would normally pick the 1290w file on the iPhone Air and the same one on the Pixel 9.
The Pixel 9's ratio of 2.625 is fractional: one CSS pixel isn't a whole number of device pixels, so 1 px borders and hairlines can be rounded unevenly. Check thin lines on that screen rather than assuming they match.
How much fits above the fold
On first load about 828 px of the page is visible on the Pixel 9 and 722 px on the iPhone Air: 106 px less (15%) on the iPhone Air, roughly 4 lines of 16 px body text at a 1.5 line height.
If your main button sits just above the fold on the Pixel 9, it can end up below it on the iPhone Air. Keep the headline and the main action within the first 722 px, and size full-screen sections with 100svh rather than 100vh — see the 100vh problem on mobile.
Relative to its width, the Pixel 9 has the taller screen (19.5:9 vs 20:9), so the same content is laid out narrower but more of its length fits at once.
In landscape
Turned sideways, the iPhone Air is 912 px wide and the Pixel 9 924 px. The visible height drops to about 370 and 332 px, so a 64 px sticky header covers 17% and 19% of the screen — under the 25% at which MobileCheck flags fixed bars covering the page.
Different browser engines
The iPhone Air renders with WebKit (Safari's engine) and the Pixel 9 with Chromium (Chrome's), so fonts, form controls and some CSS can differ on top of the size difference. Chrome DevTools draws every emulated device with Chromium, which hides WebKit-only problems — see how to test on an iPhone and on Android.
More about these devices
- iPhone Air viewport size
- Pixel 9 viewport size — one screen for the Google Pixel 9 / 9a / 10
Or open the free check with the iPhone Air and the Pixel 9 preselected: full-page screenshots in WebKit and Chromium, with problems such as small text and crowded buttons highlighted.
Related comparisons
- iPhone 17 vs Pixel 9 — 402 vs 412 px wide, 3× vs 2.625×
- iPhone 17 Pro Max vs Pixel 10 — 440 vs 412 px wide, 3× vs 2.625×
- iPhone Air vs Galaxy S25 — 420 vs 360 px wide, 3× vs 3×
- iPhone Air vs iPhone 17 — 420 vs 402 px wide, 3× vs 3×
- iPhone Air vs iPhone 17 Pro Max — 420 vs 440 px wide, 3× vs 3×
- Galaxy S25 vs Pixel 9 — 360 vs 412 px wide, 3× vs 2.625×
Compare other devices → · All mobile viewport sizes →
Frequently asked questions
Is the iPhone Air screen bigger than the Pixel 9?
In CSS pixels, which decide how much of a page fits, the iPhone Air is larger: 420 × 912 against 412 × 924. The iPhone Air has more physical pixels (1260 × 2736), which makes it sharper rather than roomier.
Do I need different CSS for the iPhone Air and the Pixel 9?
Only if your breakpoints fall between 412 and 420 px: a min-width query at 414px applies to one and not the other. A fluid layout handles both without device-specific rules.
How much of a web page is visible on the iPhone Air vs the Pixel 9?
About 420 × 722 CSS px on the iPhone Air and 412 × 828 on the Pixel 9 when a page first opens in portrait, after the status bar and the browser's bars. Bar heights are our device profiles' estimates.