Notch and safe areas
On Apple iPhone 18 PRO, 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.
Apple iPhone 18 PRO: CSS viewport of 402 × 873 px, resolution and responsive test
Apple · iOS 26.0 · Smartphone · 2026
Apple iPhone 18 PRO, smartphone Apple from 2026, displays a CSS viewport of 402 x 873 pixels. Below, find its 3x density, ready-to-copy media queries, and how to test your site on it without buying the device.
Test your site on Apple iPhone 18 PRO directly in your browser, without buying the device.
- Apple iPhone 18 PRO available in the device list
- Real viewport, User-Agent, and touch events
- Also works on localhost and in pre-production
- Exportable screenshots and videos
Install the extension
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Why test your site on Apple iPhone 18 PRO?
3x density
Each CSS pixel of Apple iPhone 18 PRO is rendered by 3 physical pixels. Any image, icon, or font provided in simple resolution appears immediately blurry.
Very elongated screen
With a ratio of 19.5:9, Apple iPhone 18 PRO displays a lot of height for little width. Sections designed in landscape become endless columns, and full-screen visuals are poorly cropped.
CSS viewport resolution of Apple iPhone 18 PRO
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.
- 402 pixels in width
- 873 pixels in 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 18 PRO
3
The device pixel ratio of Apple iPhone 18 PRO 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 18 PRO
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.
- 1206 pixels in width
- 2619 pixels in height
- 19.5:9 Screen ratio
460 pixels per inch (ppi) · 6.3 inches diagonal, or 16 cm
User-Agent of Apple iPhone 18 PRO
This string is what the browser of Apple iPhone 18 PRO 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 18 PRO, 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/18.0 Mobile/15E148 Safari/604.1Notch and safe areas of Apple iPhone 18 PRO
On Apple iPhone 18 PRO, 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 18 PRO.
.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 18 PRO
These snippets are generated from the exact characteristics of Apple iPhone 18 PRO. Copy them directly into your stylesheet or configuration.
CSS media query
Targets screens whose width matches that of Apple iPhone 18 PRO and models of the same format.
@media only screen and (min-width: 402px) and (max-width: 872px) {
/* Apple iPhone 18 PRO */
}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 18 PRO.
// tailwind.config.js
module.exports = {
theme: {
screens: {
'apple-iphone-18-pro-2026': '402px'
}
}
}JavaScript detection
Detects format and density client-side.
const isDeviceWidth = window.matchMedia('(min-width: 402px)').matches;
const isHighDensity = window.devicePixelRatio >= 3;Meta viewport tag
Essential for Apple iPhone 18 PRO 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 18 PRO simulator
Mobile FIRST includes Apple iPhone 18 PRO: your page displays in a viewport of 402 x 873 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.
- 01 Install the extension Add Mobile FIRST to Chrome, Firefox, or Edge. Installation is free and requires no account.
- 02 Open the page to test Go to the URL to check, including a local address like localhost:3000.
- 03 Choose Apple iPhone 18 PRO Select Apple iPhone 18 PRO from the list of devices. The viewport switches to 402 x 873 pixels, and the mobile User-Agent is applied.
- 04 Check rendering Scroll, change orientation, test your forms, then capture an image or video to share.
Models sharing the format of Apple iPhone 18 PRO
These 1 devices share exactly the viewport of 402 x 873 pixels and the 3x density of Apple iPhone 18 PRO. Their CSS rendering is therefore exactly the same: what you validate on one is valid on all others.
Comparison with similar models
The neighboring formats of Apple iPhone 18 PRO are the ones to test right after, as they reveal poorly placed breakpoints.
| Model | CSS Viewport | Pixel density | Manufacturer resolution |
|---|---|---|---|
| Apple iPhone 18 PRO | 402 x 873 | 3x | 1206 x 2619 |
| Apple iPhone Duo folded | 466 x 678 | 3x | 1398 x 2034 |
| Apple iPhone 17 PRO | 402 x 873 | 3x | 1206 x 2622 |
| Apple iPhone 17 | 402 x 874 | 3x | 1206 x 2622 |
| Galaxy S26 ULTRA | 412 x 891 | 4x | 1648 x 3564 |
| Pixel 10 Fold folded | 412 x 901 | 2.625x | 1082 x 2365 |
| Google Pixel 10 PRO | 410 x 912 | 3.125x | 1281 x 2850 |
Frequently asked questions about Apple iPhone 18 PRO
What is the CSS viewport resolution of Apple iPhone 18 PRO?
The CSS viewport of Apple iPhone 18 PRO measures 402 pixels wide and 873 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 18 PRO?
The device pixel ratio of Apple iPhone 18 PRO 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 18 PRO?
The panel of Apple iPhone 18 PRO displays 1206 x 2619 physical pixels. This is the value reported by most analytics tools, while your CSS works on a viewport of 402 x 873 pixels.
What is the User-Agent of Apple iPhone 18 PRO?
The User-Agent of Apple iPhone 18 PRO is: Mozilla/5.0 (iPhone; CPU iPhone OS 26_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0 Mobile/15E148 Safari/604.1
Which devices have the same viewport as Apple iPhone 18 PRO?
1 other models share exactly the viewport of 402 x 873 pixels and the 3x density of Apple iPhone 18 PRO: Apple iPhone 17 PRO. A rendering validated on one is valid on all others.
How to test my site on Apple iPhone 18 PRO without the device?
Install the Mobile FIRST extension on Chrome, Firefox, or Edge, then select Apple iPhone 18 PRO. Your page displays in a viewport of 402 x 873 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 18 PRO, 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 18 PRO?
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 18 PRO 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 18 PRO?
A media query on the exact width targets Apple iPhone 18 PRO: @media only screen and (min-width: 402px). Combine it with the pixel density to precisely target this model and those sharing its format.
Test your site on 81 devices, directly in your browser
Without buying a single phone, without creating an account.
- 81 devices available upon installation
- Real viewport, User-Agent, and touch events
- Also works on localhost and in pre-production
- Exportable screenshots and videos
Install the extension
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