Apple iPhone Air: CSS viewport of 420 × 912 px, resolution and responsive test

Apple iPhone Air, smartphone Apple from 2025, displays a CSS viewport of 420 x 912 pixels. Below, find its 3x density, ready-to-copy media queries, and how to test your site on it without buying the device.

Apple iOS 26.0 Smartphone 2025

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Apple iPhone Air, CSS viewport of 420 x 912 pixels, testable in the simulator

Characteristics of Apple iPhone Air

CSS Viewport
420 x 912 px
Pixel density
3x
Manufacturer resolution
1260 x 2736 px
Diagonal
6.5" (16.5 cm)
Physical density
463 ppi
Screen ratio
19.5:9
System
iOS 26.0
Release year
2025

Why test your site on Apple iPhone Air?

Notch and safe areas

On Apple iPhone Air, the notch and gesture bar reserve part of the screen. Without the env(safe-area-inset-*) variables, your fixed headers and bottom-stuck buttons go under these areas and become unusable.

Large mobile screen

With 420 pixels wide, Apple iPhone Air already shifts some layouts to their tablet breakpoint. A test prevents overly stretched columns and unreadable text areas.

3x density

Each CSS pixel of Apple iPhone Air is rendered by 3 physical pixels. Any image, icon, or font provided in simple resolution appears immediately blurry.

CSS viewport resolution of Apple iPhone Air

This is the width your CSS considers. All your breakpoints and media queries compare to this value, not the number of physical pixels on the panel.

420 pixels in width

912 pixels in height (height)

The height remains indicative: Safari, Chrome, and other mobile browsers reduce the visible area with their address bar, which folds on scroll.

Be cautious when analyzing your statistics: some tools only report the manufacturer resolution, never the CSS viewport presented here.

Pixel density of Apple iPhone Air

The device pixel ratio of Apple iPhone Air is 3. Your images should therefore be exported 3 times larger than their display size, otherwise they will appear softened on this screen.

Manufacturer resolution of Apple iPhone Air

This is the actual number of pixels on the panel. This value does not affect your layouts, but it's the one reported by technical specifications and most analytics tools.

  • 1260 pixels in width
  • 2736 pixels in height
  • 463 pixels per inch (ppi)
  • 6.5 inches diagonal, or 16.5 cm
  • Screen ratio of 19.5:9

User-Agent of Apple iPhone Air

This string is what the browser of Apple iPhone Air sends. It is useful for your automated tests, reading your server logs, and server-side detection.

User-Agent

User-Agent string used by Apple iPhone Air, useful for your automated tests and logs.

Mozilla/5.0 (iPhone; CPU iPhone OS 26_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.0 Mobile/15E148 Safari/604.1

Notch and safe areas of Apple iPhone Air

On Apple iPhone Air, part of the screen is reserved for the notch and gesture bar. Without precaution, a fixed header goes under the notch, and a bottom-stuck button becomes impossible to touch.

Two conditions to remedy this: declare viewport-fit=cover in the meta viewport tag, then use the env(safe-area-inset-*) variables in your padding.

Safe areas

Protects your fixed elements from the notch and gesture bar of Apple iPhone Air.

.header {
  padding-top: env(safe-area-inset-top);
}

.bottom-bar {
  padding-bottom: env(safe-area-inset-bottom);
}

Media queries and code snippets for Apple iPhone Air

These snippets are generated from the exact characteristics of Apple iPhone Air. Copy them directly into your stylesheet or configuration.

CSS media query

Targets screens whose width matches that of Apple iPhone Air and models of the same format.

@media only screen and (min-width: 420px) and (max-width: 911px) {
  /* Apple iPhone Air */
}

Density media query

Serves high-resolution images to screens of at least 3x.

@media only screen and (-webkit-min-device-pixel-ratio: 3),
       only screen and (min-resolution: 288dpi) {
  /* High-density images and icons */
}

Tailwind configuration

Adds a named breakpoint at the exact width of Apple iPhone Air.

// tailwind.config.js
module.exports = {
  theme: {
    screens: {
      'apple-iphone-air-2025': '420px'
    }
  }
}

JavaScript detection

Detects format and density client-side.

const isDeviceWidth = window.matchMedia('(min-width: 420px)').matches;
const isHighDensity = window.devicePixelRatio >= 3;

Meta viewport tag

Essential for Apple iPhone Air to use its CSS viewport and not a simulated width of 980 pixels.

<meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">

Free Apple iPhone Air simulator

Mobile FIRST includes Apple iPhone Air: your page displays in a viewport of 420 x 912 pixels, with the model's User-Agent, touch events, and scrolling behavior of a real mobile.

This is where the difference with Chrome DevTools' responsive mode is seen: DevTools resizes a window, the extension replicates the device's browser and allows exporting shareable screenshots and videos.

  1. 01 Install the extension — Add Mobile FIRST to Chrome, Firefox, or Edge. Installation is free and requires no account.
  2. 02 Open the page to test — Go to the URL to check, including a local address like localhost:3000.
  3. 03 Choose Apple iPhone Air — Select Apple iPhone Air from the list of devices. The viewport switches to 420 x 912 pixels, and the mobile User-Agent is applied.
  4. 04 Check rendering — Scroll, change orientation, test your forms, then capture an image or video to share.

Test your site on Apple iPhone Air directly in your browser, without buying the device.

  • Apple iPhone Air available in the device list
  • Real viewport, User-Agent, and touch events
  • Also works on localhost and in pre-production
  • Exportable screenshots and videos

Comparison with similar models

The neighboring formats of Apple iPhone Air are the ones to test right after, as they reveal poorly placed breakpoints.

Comparison of resolutions of Apple iPhone Air and nearby models
Model CSS Viewport Pixel density Manufacturer resolution
Apple iPhone Air 420 x 912 3x 1260 x 2736
Apple iPhone 17 PRO 402 x 873 3x 1206 x 2622
Apple iPhone 17 402 x 874 3x 1206 x 2622
Samsung Galaxy A17 412 x 892 2.625x 1082 x 2342
Google Pixel 8 412 x 915 2.625x 1080 x 2400
Google Pixel 10 412 x 924 2.625x 1082 x 2426
Apple iPhone 16 Plus 430 x 932 3x 1290 x 2796

Apple iPhone Air PNG mockup

To present a mockup or capture in a realistic frame, the transparent mockup of Apple iPhone Air is available for free download.

Download for free

Frequently asked questions about Apple iPhone Air

What is the CSS viewport resolution of Apple iPhone Air?

The CSS viewport of Apple iPhone Air measures 420 pixels wide and 912 pixels high. This is the width to use for defining your media queries, not the manufacturer's resolution.

What is the pixel density of Apple iPhone Air?

The device pixel ratio of Apple iPhone Air is 3. Each CSS pixel is thus displayed by 3 physical pixels, requiring you to provide your images in 3x to keep them sharp.

What is the screen resolution of Apple iPhone Air?

The panel of Apple iPhone Air displays 1260 x 2736 physical pixels. This is the value reported by most analytics tools, while your CSS works on a viewport of 420 x 912 pixels.

What is the User-Agent of Apple iPhone Air?

The User-Agent of Apple iPhone Air is: Mozilla/5.0 (iPhone; CPU iPhone OS 26_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.0 Mobile/15E148 Safari/604.1

How to test my site on Apple iPhone Air without the device?

Install the Mobile FIRST extension on Chrome, Firefox, or Edge, then select Apple iPhone Air. Your page displays in a viewport of 420 x 912 pixels with the corresponding mobile User-Agent, in two clicks and for free.

What is the difference with Chrome DevTools' responsive mode?

DevTools resizes the window and applies partial emulation. Mobile FIRST additionally applies the User-Agent of Apple iPhone Air, touch events, scroll behavior, and the actual appearance of the device, and allows capturing directly usable images and videos.

Can I test a localhost address on Apple iPhone Air?

Yes. The extension works on any URL open in your browser, including localhost:3000, 127.0.0.1, or a password-protected pre-production environment.

Do you need to buy a Apple iPhone Air to test your site?

No. The simulation covers the vast majority of development needs at no cost. A final test on a real device is still recommended before critical production deployment, but it's no longer necessary for each iteration.

Which media query to use to target Apple iPhone Air?

A media query on the exact width targets Apple iPhone Air: @media only screen and (min-width: 420px). Combine it with the pixel density to precisely target this model and those sharing its format.