Zebra TC78: CSS viewport of 412 × 818 px, resolution and responsive test

Why test your site on Zebra TC78?

CSS viewport resolution of Zebra TC78

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.

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 Zebra TC78

The device pixel ratio of Zebra TC78 is 2.625. Your images should therefore be exported 2.625 times larger than their display size, otherwise they will appear softened on this screen.

Manufacturer resolution of Zebra TC78

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.

• 1082 pixels in width
• 2147 pixels in height
• Screen ratio of 18:9

User-Agent of Zebra TC78

This string is what the browser of Zebra TC78 sends. It is useful for your automated tests, reading your server logs, and server-side detection.

Mozilla/5.0 (Linux; Android 13; TC78) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.6778.260 Mobile Safari/537.36

Media queries and code snippets for Zebra TC78

These snippets are generated from the exact characteristics of Zebra TC78. Copy them directly into your stylesheet or configuration.

@media only screen and (min-width: 412px) and (max-width: 817px) {
  /* Zebra TC78 */
}

@media only screen and (-webkit-min-device-pixel-ratio: 2.625),
       only screen and (min-resolution: 252dpi) {
  /* High-density images and icons */
}

// tailwind.config.js
module.exports = {
  theme: {
    screens: {
      'zebra-tc78': '412px'
    }
  }
}

const isDeviceWidth = window.matchMedia('(min-width: 412px)').matches;
const isHighDensity = window.devicePixelRatio >= 2.625;

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

Free Zebra TC78 simulator

Mobile FIRST includes Zebra TC78: your page displays in a viewport of 412 x 818 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 Zebra TC78 — Select Zebra TC78 from the list of devices. The viewport switches to 412 x 818 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 Zebra TC78 are the ones to test right after, as they reveal poorly placed breakpoints.

Frequently asked questions about Zebra TC78

Updated on August 15, 2026