Dell Latitude 3420 14": CSS viewport of 1440 × 809 px, resolution and responsive test

Why test your site on Dell Latitude 3420 14"?

CSS viewport resolution of Dell Latitude 3420 14"

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.

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 Dell Latitude 3420 14"

The device pixel ratio of Dell Latitude 3420 14" is 1. In other words, a 1-pixel square in CSS occupies 1 pixels on the panel. An image exported at actual size will appear blurry.

Manufacturer resolution of Dell Latitude 3420 14"

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

• 1440 pixels in width
• 809 pixels in height
• 118 pixels per inch (ppi)
• 14 inches diagonal, or 35.6 cm
• Screen ratio of 16:9

User-Agent of Dell Latitude 3420 14"

This string is what the browser of Dell Latitude 3420 14" sends. It is useful for your automated tests, reading your server logs, and server-side detection.

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.114 Safari/537.36

Media queries and code snippets for Dell Latitude 3420 14"

These snippets are generated from the exact characteristics of Dell Latitude 3420 14". Copy them directly into your stylesheet or configuration.

@media only screen and (min-width: 1440px) and (max-width: 808px) {
  /* Dell Latitude 3420 14" */
}

@media only screen and (-webkit-min-device-pixel-ratio: 1),
       only screen and (min-resolution: 96dpi) {
  /* High-density images and icons */
}

// tailwind.config.js
module.exports = {
  theme: {
    screens: {
      'dell-latitude-14-3420': '1440px'
    }
  }
}

const isDeviceWidth = window.matchMedia('(min-width: 1440px)').matches;
const isHighDensity = window.devicePixelRatio >= 1;

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

Free Dell Latitude 3420 14" simulator

Mobile FIRST includes Dell Latitude 3420 14": your page displays in a viewport of 1440 x 809 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 Dell Latitude 3420 14" — Select Dell Latitude 3420 14" from the list of devices. The viewport switches to 1440 x 809 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 Dell Latitude 3420 14" are the ones to test right after, as they reveal poorly placed breakpoints.

Dell Latitude 3420 14" PNG mockup

To present a mockup or capture in a realistic frame, the transparent mockup of Dell Latitude 3420 14" is available for free download.

Frequently asked questions about Dell Latitude 3420 14"

Updated on August 15, 2026