Xiaomi 17T Pro: CSS viewport of 427 × 924 px, resolution and responsive test

Xiaomi · Android 16.0 · Smartphone · 2026

Xiaomi 17T Pro, smartphone Xiaomi from 2026, displays a CSS viewport of 427 x 924 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 Xiaomi 17T Pro directly in your browser, without buying the device.

  • Xiaomi 17T 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 for Chrome

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Why test your site on Xiaomi 17T Pro?

Large mobile screen

With 427 pixels wide, Xiaomi 17T Pro already shifts some layouts to their tablet breakpoint. A test prevents overly stretched columns and unreadable text areas.

3x density

Each CSS pixel of Xiaomi 17T 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, Xiaomi 17T 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 Xiaomi 17T 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.

  • 427 pixels in width
  • 924 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 Xiaomi 17T Pro

3

The device pixel ratio of Xiaomi 17T 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 Xiaomi 17T 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.

  • 1280 pixels in width
  • 2772 pixels in height
  • 19.5:9 Screen ratio

447 pixels per inch (ppi) · 6.8 inches diagonal, or 17.4 cm

User-Agent of Xiaomi 17T Pro

This string is what the browser of Xiaomi 17T Pro sends. It is useful for your automated tests, reading your server logs, and server-side detection.

User-Agent

User-Agent string used by Xiaomi 17T Pro, useful for your automated tests and logs.

Mozilla/5.0 (Linux; Android 16; Xiaomi 17T Pro) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.6778.260 Mobile Safari/537.36

Media queries and code snippets for Xiaomi 17T Pro

These snippets are generated from the exact characteristics of Xiaomi 17T Pro. Copy them directly into your stylesheet or configuration.

CSS media query

Targets screens whose width matches that of Xiaomi 17T Pro and models of the same format.

@media only screen and (min-width: 427px) and (max-width: 923px) {
  /* Xiaomi 17T 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 Xiaomi 17T Pro.

// tailwind.config.js
module.exports = {
  theme: {
    screens: {
      'xiaomi-17t-pro-2026': '427px'
    }
  }
}

JavaScript detection

Detects format and density client-side.

const isDeviceWidth = window.matchMedia('(min-width: 427px)').matches;
const isHighDensity = window.devicePixelRatio >= 3;

Meta viewport tag

Essential for Xiaomi 17T Pro to use its CSS viewport and not a simulated width of 980 pixels.

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

Free Xiaomi 17T Pro simulator

Mobile FIRST includes Xiaomi 17T Pro: your page displays in a viewport of 427 x 924 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 Xiaomi 17T Pro Select Xiaomi 17T Pro from the list of devices. The viewport switches to 427 x 924 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 Xiaomi 17T Pro are the ones to test right after, as they reveal poorly placed breakpoints.

Comparison of resolutions of Xiaomi 17T Pro and nearby models
Model CSS Viewport Pixel density Manufacturer resolution
Xiaomi 17T Pro 427 x 924 3x 1280 x 2772
Xiaomi 17 Ultra 400 x 869 3x 1200 x 2608
Xiaomi 17 406 x 885 3x 1220 x 2656
Apple iPhone Air 420 x 912 3x 1260 x 2736
Xiaomi 17T 423 x 919 3x 1268 x 2756
Apple iPhone 16 Plus 430 x 932 3x 1290 x 2796
Apple iPhone 18 PRO MAX 440 x 956 3x 1320 x 2868

Frequently asked questions about Xiaomi 17T Pro

What is the CSS viewport resolution of Xiaomi 17T Pro?

The CSS viewport of Xiaomi 17T Pro measures 427 pixels wide and 924 pixels high. This is the width to use for defining your media queries, not the manufacturer's resolution.

What is the pixel density of Xiaomi 17T Pro?

The device pixel ratio of Xiaomi 17T 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 Xiaomi 17T Pro?

The panel of Xiaomi 17T Pro displays 1280 x 2772 physical pixels. This is the value reported by most analytics tools, while your CSS works on a viewport of 427 x 924 pixels.

What is the User-Agent of Xiaomi 17T Pro?

The User-Agent of Xiaomi 17T Pro is: Mozilla/5.0 (Linux; Android 16; Xiaomi 17T Pro) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.6778.260 Mobile Safari/537.36

How to test my site on Xiaomi 17T Pro without the device?

Install the Mobile FIRST extension on Chrome, Firefox, or Edge, then select Xiaomi 17T Pro. Your page displays in a viewport of 427 x 924 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 Xiaomi 17T 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 Xiaomi 17T 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 Xiaomi 17T Pro 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 Xiaomi 17T Pro?

A media query on the exact width targets Xiaomi 17T Pro: @media only screen and (min-width: 427px). Combine it with the pixel density to precisely target this model and those sharing its format.

Continue testing on another model

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Other Xiaomi models

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  • 97 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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