Samsung Galaxy Z Fold8 unfolded: CSS viewport of 816 × 616 px, resolution and responsive test

Samsung · Android 17.0 · Smartphone · 2026

All display characteristics of Samsung Galaxy Z Fold8 unfolded, smartphone Samsung from 2026: CSS viewport of 816 x 616 pixels, 3x density, media queries, and one-click responsive test.

Test your site on Samsung Galaxy Z Fold8 unfolded directly in your browser, without buying the device.

  • Samsung Galaxy Z Fold8 unfolded 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 for Chrome

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Why test your site on Samsung Galaxy Z Fold8 unfolded?

Large mobile screen

With 816 pixels wide, Samsung Galaxy Z Fold8 unfolded already shifts some layouts to their tablet breakpoint. A test prevents overly stretched columns and unreadable text areas.

3x density

Each CSS pixel of Samsung Galaxy Z Fold8 unfolded is rendered by 3 physical pixels. Any image, icon, or font provided in simple resolution appears immediately blurry.

Actual media queries

The 816 x 616 pixels viewport of Samsung Galaxy Z Fold8 unfolded rarely matches the round breakpoints of frameworks. It is precisely between these values that layouts break.

CSS viewport resolution of Samsung Galaxy Z Fold8 unfolded

This is the resolution that interests designers and developers the most, as it determines breakpoints and the definition of media queries. In practice, it's the only one mentioned in a stylesheet.

  • 816 pixels in width
  • 616 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 Samsung Galaxy Z Fold8 unfolded

3

The device pixel ratio of Samsung Galaxy Z Fold8 unfolded is 3.

In other words, a 1-pixel square in CSS occupies 3 pixels on the panel. An image exported at actual size will appear blurry.

Manufacturer resolution of Samsung Galaxy Z Fold8 unfolded

This resolution is the hardware's. It explains the display's sharpness, but it's never the one to target in a media query.

  • 2448 pixels in width
  • 1848 pixels in height
  • 4:3 Screen ratio

403 pixels per inch (ppi) · 7.6 inches diagonal, or 19.3 cm

User-Agent of Samsung Galaxy Z Fold8 unfolded

This string is what the browser of Samsung Galaxy Z Fold8 unfolded sends. It is useful for your automated tests, reading your server logs, and server-side detection.

User-Agent

User-Agent string used by Samsung Galaxy Z Fold8 unfolded, useful for your automated tests and logs.

Mozilla/5.0 (Linux; Android 17; SM-F971B) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Mobile Safari/537.36

Media queries and code snippets for Samsung Galaxy Z Fold8 unfolded

These snippets are generated from the exact characteristics of Samsung Galaxy Z Fold8 unfolded. Copy them directly into your stylesheet or configuration.

CSS media query

Targets screens whose width matches that of Samsung Galaxy Z Fold8 unfolded and models of the same format.

@media only screen and (min-width: 616px) and (max-width: 815px) {
  /* Samsung Galaxy Z Fold8 unfolded */
}

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 Samsung Galaxy Z Fold8 unfolded.

// tailwind.config.js
module.exports = {
  theme: {
    screens: {
      'samsung-galaxy-z-fold8-unfolded-2026': '816px'
    }
  }
}

JavaScript detection

Detects format and density client-side.

const isDeviceWidth = window.matchMedia('(min-width: 816px)').matches;
const isHighDensity = window.devicePixelRatio >= 3;

Meta viewport tag

Essential for Samsung Galaxy Z Fold8 unfolded to use its CSS viewport and not a simulated width of 980 pixels.

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

Free Samsung Galaxy Z Fold8 unfolded simulator

Mobile FIRST includes Samsung Galaxy Z Fold8 unfolded: your page displays in a viewport of 816 x 616 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 Samsung Galaxy Z Fold8 unfolded Select Samsung Galaxy Z Fold8 unfolded from the list of devices. The viewport switches to 816 x 616 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.

Comparison with similar models

The neighboring formats of Samsung Galaxy Z Fold8 unfolded are the ones to test right after, as they reveal poorly placed breakpoints.

Comparison of resolutions of Samsung Galaxy Z Fold8 unfolded and nearby models
Model CSS Viewport Pixel density Manufacturer resolution
Samsung Galaxy Z Fold8 unfolded 816 x 616 3x 2448 x 1848
Samsung Galaxy Z Fold8 folded 416 x 657 3x 1248 x 1972
Galaxy S26 ULTRA 412 x 891 4x 1648 x 3564
Samsung Galaxy A17 412 x 892 2.625x 1082 x 2342
Apple iPhone 18 PRO MAX 440 x 956 3x 1320 x 2868
Google Pixel 11 Pro XL 448 x 997 3x 1344 x 2992
Apple iPhone Duo unfolded 890 x 626 3x 2670 x 1878

Frequently asked questions about Samsung Galaxy Z Fold8 unfolded

What is the CSS viewport resolution of Samsung Galaxy Z Fold8 unfolded?

The CSS viewport of Samsung Galaxy Z Fold8 unfolded measures 816 pixels wide and 616 pixels high. This is the width to use for defining your media queries, not the manufacturer's resolution.

What is the pixel density of Samsung Galaxy Z Fold8 unfolded?

The device pixel ratio of Samsung Galaxy Z Fold8 unfolded 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 Samsung Galaxy Z Fold8 unfolded?

The panel of Samsung Galaxy Z Fold8 unfolded displays 2448 x 1848 physical pixels. This is the value reported by most analytics tools, while your CSS works on a viewport of 816 x 616 pixels.

What is the User-Agent of Samsung Galaxy Z Fold8 unfolded?

The User-Agent of Samsung Galaxy Z Fold8 unfolded is: Mozilla/5.0 (Linux; Android 17; SM-F971B) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Mobile Safari/537.36

How to test my site on Samsung Galaxy Z Fold8 unfolded without the device?

Install the Mobile FIRST extension on Chrome, Firefox, or Edge, then select Samsung Galaxy Z Fold8 unfolded. Your page displays in a viewport of 816 x 616 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 Samsung Galaxy Z Fold8 unfolded, 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 Samsung Galaxy Z Fold8 unfolded?

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 Samsung Galaxy Z Fold8 unfolded to test your site?

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

Which media query to use to target Samsung Galaxy Z Fold8 unfolded?

A media query on the exact width targets Samsung Galaxy Z Fold8 unfolded: @media only screen and (min-width: 816px). Combine it with the pixel density to precisely target this model and those sharing its format.

Continue testing on another model

All Samsung resolutions → All devices →

Other Samsung models

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Without buying a single phone, without creating an account.

  • 89 devices available upon installation
  • Real viewport, User-Agent, and touch events
  • Also works on localhost and in pre-production
  • Exportable screenshots and videos
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