Google Pixel 3a: CSS viewport of 393 × 808 px, resolution and responsive test

Why test your site on Google Pixel 3a?

CSS viewport resolution of Google Pixel 3a

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

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 Google Pixel 3a

The device pixel ratio of Google Pixel 3a is 2.75. Each CSS pixel is thus rendered by 2.75 physical pixels, making any image provided in simple resolution immediately visible.

Manufacturer resolution of Google Pixel 3a

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.

• 1080 pixels in width
• 2220 pixels in height
• 441 pixels per inch (ppi)
• 5.6 inches diagonal, or 14.2 cm
• Screen ratio of 18.5:9

Media queries and code snippets for Google Pixel 3a

These snippets are generated from the exact characteristics of Google Pixel 3a. Copy them directly into your stylesheet or configuration.

@media only screen and (min-width: 393px) and (max-width: 807px) {
  /* Google Pixel 3a */
}

@media only screen and (-webkit-min-device-pixel-ratio: 2.75),
       only screen and (min-resolution: 264dpi) {
  /* High-density images and icons */
}

// tailwind.config.js
module.exports = {
  theme: {
    screens: {
      'google-pixel-3a': '393px'
    }
  }
}

const isDeviceWidth = window.matchMedia('(min-width: 393px)').matches;
const isHighDensity = window.devicePixelRatio >= 2.75;

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

Free Google Pixel 3a simulator

Mobile FIRST does not yet include Google Pixel 3a, but a model with the same format is available. You can already validate your breakpoints and display density.

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 Google Pixel 3a — Select Google Pixel 3a from the list of devices. The viewport switches to 393 x 808 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 Google Pixel 3a are the ones to test right after, as they reveal poorly placed breakpoints.

Frequently asked questions about Google Pixel 3a

Updated on August 15, 2026