4x density
Each CSS pixel of Galaxy S26 ULTRA is rendered by 4 physical pixels. Any image, icon, or font provided in simple resolution appears immediately blurry.
Galaxy S26 ULTRA: CSS viewport of 412 × 891 px, resolution and responsive test
Samsung · Android 16.0 · Smartphone · 2026
Galaxy S26 ULTRA, smartphone Samsung from 2026, displays a CSS viewport of 412 x 891 pixels. Below, find its 4x density, ready-to-copy media queries, and how to test your site on it without buying the device.
Test your site on Galaxy S26 ULTRA directly in your browser, without buying the device.
- Galaxy S26 ULTRA 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 Galaxy S26 ULTRA?
Very elongated screen
With a ratio of 19.5:9, Galaxy S26 ULTRA displays a lot of height for little width. Sections designed in landscape become endless columns, and full-screen visuals are poorly cropped.
Actual media queries
The 412 x 891 pixels viewport of Galaxy S26 ULTRA rarely matches the round breakpoints of frameworks. It is precisely between these values that layouts break.
CSS viewport resolution of Galaxy S26 ULTRA
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.
- 412 pixels in width
- 891 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 Galaxy S26 ULTRA
4
The device pixel ratio of Galaxy S26 ULTRA is 4.
Your images should therefore be exported 4 times larger than their display size, otherwise they will appear softened on this screen.
Manufacturer resolution of Galaxy S26 ULTRA
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.
- 1648 pixels in width
- 3564 pixels in height
- 19.5:9 Screen ratio
User-Agent of Galaxy S26 ULTRA
This string is what the browser of Galaxy S26 ULTRA sends. It is useful for your automated tests, reading your server logs, and server-side detection.
User-Agent
User-Agent string used by Galaxy S26 ULTRA, useful for your automated tests and logs.
Mozilla/5.0 (Linux; Android 16; SM-S948B) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Mobile Safari/537.36Media queries and code snippets for Galaxy S26 ULTRA
These snippets are generated from the exact characteristics of Galaxy S26 ULTRA. Copy them directly into your stylesheet or configuration.
CSS media query
Targets screens whose width matches that of Galaxy S26 ULTRA and models of the same format.
@media only screen and (min-width: 412px) and (max-width: 890px) {
/* Galaxy S26 ULTRA */
}Density media query
Serves high-resolution images to screens of at least 4x.
@media only screen and (-webkit-min-device-pixel-ratio: 4),
only screen and (min-resolution: 384dpi) {
/* High-density images and icons */
}Tailwind configuration
Adds a named breakpoint at the exact width of Galaxy S26 ULTRA.
// tailwind.config.js
module.exports = {
theme: {
screens: {
'samsung-galaxy-s26-ultra-2026': '412px'
}
}
}JavaScript detection
Detects format and density client-side.
const isDeviceWidth = window.matchMedia('(min-width: 412px)').matches;
const isHighDensity = window.devicePixelRatio >= 4;Meta viewport tag
Essential for Galaxy S26 ULTRA to use its CSS viewport and not a simulated width of 980 pixels.
<meta name="viewport" content="width=device-width, initial-scale=1">Free Galaxy S26 ULTRA simulator
Mobile FIRST includes Galaxy S26 ULTRA: your page displays in a viewport of 412 x 891 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 Galaxy S26 ULTRA Select Galaxy S26 ULTRA from the list of devices. The viewport switches to 412 x 891 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.
Comparison with similar models
The neighboring formats of Galaxy S26 ULTRA are the ones to test right after, as they reveal poorly placed breakpoints.
| Model | CSS Viewport | Pixel density | Manufacturer resolution |
|---|---|---|---|
| Galaxy S26 ULTRA | 412 x 891 | 4x | 1648 x 3564 |
| Samsung Galaxy S24 Ultra | 384 x 832 | 2.8125x | 1440 x 3120 |
| Samsung Galaxy Note20 Ultra | 412 x 883 | 3.5x | 1440 x 3088 |
| Samsung Galaxy A17 | 412 x 892 | 2.625x | 1082 x 2342 |
| Pixel 10 Fold (Unfolded) | 412 x 901 | 2.625x | 1082 x 2365 |
| Google Pixel 10 PRO | 410 x 912 | 3.125x | 1281 x 2850 |
| Google Pixel 10 | 412 x 924 | 2.625x | 1082 x 2426 |
Frequently asked questions about Galaxy S26 ULTRA
What is the CSS viewport resolution of Galaxy S26 ULTRA?
The CSS viewport of Galaxy S26 ULTRA measures 412 pixels wide and 891 pixels high. This is the width to use for defining your media queries, not the manufacturer's resolution.
What is the pixel density of Galaxy S26 ULTRA?
The device pixel ratio of Galaxy S26 ULTRA is 4. Each CSS pixel is thus displayed by 4 physical pixels, requiring you to provide your images in 4x to keep them sharp.
What is the screen resolution of Galaxy S26 ULTRA?
The panel of Galaxy S26 ULTRA displays 1648 x 3564 physical pixels. This is the value reported by most analytics tools, while your CSS works on a viewport of 412 x 891 pixels.
What is the User-Agent of Galaxy S26 ULTRA?
The User-Agent of Galaxy S26 ULTRA is: Mozilla/5.0 (Linux; Android 16; SM-S948B) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Mobile Safari/537.36
How to test my site on Galaxy S26 ULTRA without the device?
Install the Mobile FIRST extension on Chrome, Firefox, or Edge, then select Galaxy S26 ULTRA. Your page displays in a viewport of 412 x 891 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 Galaxy S26 ULTRA, 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 Galaxy S26 ULTRA?
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 Galaxy S26 ULTRA 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 Galaxy S26 ULTRA?
A media query on the exact width targets Galaxy S26 ULTRA: @media only screen and (min-width: 412px). Combine it with the pixel density to precisely target this model and those sharing its format.
Test your site on 77 devices, directly in your browser
Without buying a single phone, without creating an account.
- 77 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
Free installation in seconds · computer only