Samsung Galaxy S20: CSS viewport of 360 × 800 px, resolution and responsive test

Samsung · Android 16.0 · Smartphone · 2020

Released in 2020, Samsung Galaxy S20 features a CSS viewport of 360 x 800 pixels. Here are all its display characteristics and how to check the responsive rendering of your site on this model.

Test your site on Samsung Galaxy S20 directly in your browser, without buying the device.

  • Samsung Galaxy S20 available in the device list
  • Real viewport, User-Agent, and touch events
  • Also works on localhost and in pre-production
  • Exportable screenshots and videos
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Why test your site on Samsung Galaxy S20?

Curved edges

The screen of Samsung Galaxy S20 is curved on the sides. Content stuck to the edge is visually distorted, and the touch areas of the first pixels become difficult to reach.

Narrow viewport

With only 360 pixels wide, Samsung Galaxy S20 is among the most restrictive formats. This is where tables overflow, titles break poorly, and buttons become too small.

3x density

Each CSS pixel of Samsung Galaxy S20 is rendered by 3 physical pixels. Any image, icon, or font provided in simple resolution appears immediately blurry.

CSS viewport resolution of Samsung Galaxy S20

This resolution is what your stylesheet actually manipulates. It determines the applied breakpoint, the number of displayed columns, and the size of your images.

  • 360 pixels in width
  • 800 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 S20

3

The device pixel ratio of Samsung Galaxy S20 is 3.

Each CSS pixel is thus rendered by 3 physical pixels, making any image provided in simple resolution immediately visible.

Manufacturer resolution of Samsung Galaxy S20

This is the number of physical pixels on the screen, as announced by the manufacturer. Useful for preparing your image exports, useless for your media queries.

  • 1440 pixels in width
  • 3200 pixels in height
  • 20:9 Screen ratio

563 pixels per inch (ppi) · 6.4 inches diagonal, or 16.3 cm

Le panneau atteint 1440 x 3200 px mais l'appareil sort d'usine en FHD+ : le navigateur rapporte une densité de 3x, soit 1080 x 2400 px réellement adressés.

User-Agent of Samsung Galaxy S20

This string is what the browser of Samsung Galaxy S20 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 S20, useful for your automated tests and logs.

Mozilla/5.0 (Linux; Android 16; SM-G980F) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.6778.260 Mobile Safari/537.36

Media queries and code snippets for Samsung Galaxy S20

These snippets are generated from the exact characteristics of Samsung Galaxy S20. Copy them directly into your stylesheet or configuration.

CSS media query

Targets screens whose width matches that of Samsung Galaxy S20 and models of the same format.

@media only screen and (min-width: 360px) and (max-width: 799px) {
  /* Samsung Galaxy S20 */
}

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 S20.

// tailwind.config.js
module.exports = {
  theme: {
    screens: {
      'samsung-galaxy-s20': '360px'
    }
  }
}

JavaScript detection

Detects format and density client-side.

const isDeviceWidth = window.matchMedia('(min-width: 360px)').matches;
const isHighDensity = window.devicePixelRatio >= 3;

Meta viewport tag

Essential for Samsung Galaxy S20 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 S20 simulator

Mobile FIRST includes Samsung Galaxy S20: your page displays in a viewport of 360 x 800 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 S20 Select Samsung Galaxy S20 from the list of devices. The viewport switches to 360 x 800 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.

Models sharing the format of Samsung Galaxy S20

These 4 devices share exactly the viewport of 360 x 800 pixels and the 3x density of Samsung Galaxy S20. 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 Samsung Galaxy S20 are the ones to test right after, as they reveal poorly placed breakpoints.

Comparison of resolutions of Samsung Galaxy S20 and nearby models
Model CSS Viewport Pixel density Manufacturer resolution
Samsung Galaxy S20 360 x 800 3x 1440 x 3200
Samsung Galaxy S22 360 x 780 3x 1080 x 2340
Samsung Galaxy S22+ 360 x 780 3x 1080 x 2340
Apple iPhone 12 Mini 360 x 780 3x 1080 x 2340
Huawei P30 PRO 360 x 780 3x 1080 x 2340
Samsung Galaxy S21 360 x 800 3x 1080 x 2400
Xiaomi Mi 11i 360 x 800 3x 1080 x 2400

Frequently asked questions about Samsung Galaxy S20

What is the CSS viewport resolution of Samsung Galaxy S20?

The CSS viewport of Samsung Galaxy S20 measures 360 pixels wide and 800 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 S20?

The device pixel ratio of Samsung Galaxy S20 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 S20?

The panel of Samsung Galaxy S20 displays 1440 x 3200 physical pixels. This is the value reported by most analytics tools, while your CSS works on a viewport of 360 x 800 pixels.

What is the User-Agent of Samsung Galaxy S20?

The User-Agent of Samsung Galaxy S20 is: Mozilla/5.0 (Linux; Android 16; SM-G980F) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.6778.260 Mobile Safari/537.36

Which devices have the same viewport as Samsung Galaxy S20?

4 other models share exactly the viewport of 360 x 800 pixels and the 3x density of Samsung Galaxy S20: Samsung Galaxy S21, Samsung Galaxy S21+, Xiaomi 12 2022, Xiaomi Mi 11i. A rendering validated on one is valid on all others.

How to test my site on Samsung Galaxy S20 without the device?

Install the Mobile FIRST extension on Chrome, Firefox, or Edge, then select Samsung Galaxy S20. Your page displays in a viewport of 360 x 800 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 S20, 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 S20?

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 S20 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 Samsung Galaxy S20?

A media query on the exact width targets Samsung Galaxy S20: @media only screen and (min-width: 360px). 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

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

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