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Google Pixel 4a Screen Size

CSS viewport, native resolution, pixel ratio and pixel density for the Google Pixel 4a — the numbers you need to design and build for it.

CSS viewport · portrait
393 × 851 px

Native resolution 1080 × 2340 px at 2.75× · 443 PPI · 5.81″ · 9:19.5. Design at 393 × 851 and export assets at 2.75×.

Google Pixel 4a display specifications
PropertyValue
CSS viewport (portrait)393 × 851 px
CSS viewport (landscape)851 × 393 px
Native resolution1080 × 2340 px
Device pixel ratio2.75×
Pixel density443 PPI
Screen diagonal5.81 in
Panel size2.44 × 5.28 in
Aspect ratio9:19.5
Total pixels2.53 MP
Released2020
Operating systemAndroid

Among the 130 phones on this site, the Google Pixel 4a has the 65th largest CSS viewport area. Its 393 px width is 6 px below the 399 px average for this category.

Targeting the Google Pixel 4a in CSS

Device-specific media queries are brittle — a new model with the same width will not match. Use them for genuine per-device fixes only, and prefer width buckets for layout.

CSS media query
/* Target Google Pixel 4a specifically */
@media only screen
  and (device-width: 393px)
  and (device-height: 851px)
  and (-webkit-device-pixel-ratio: 2.75) {
  /* … */
}

/* More useful in practice — the width bucket it falls into */
@media (min-width: 393px) { /* … */ }

Compare with other Android Phones models

Google Pixel 4a compared with nearby Android Phones models
DeviceCSS viewportNativeDPRPPIDiagonal
Google Pixel 4a393 × 8511080 × 23402.75×4435.81″
Google Pixel 5393 × 8511080 × 23402.75×4326″
Samsung Galaxy S20360 × 8001440 × 32005636.2″
Samsung Galaxy S20 Ultra412 × 9141440 × 32003.5×5116.9″
Samsung Galaxy Note 20 Ultra412 × 8831440 × 30883.5×4966.9″
Google Pixel 4393 × 8291080 × 22802.75×4445.7″
Samsung Galaxy S10360 × 7601440 × 30405506.1″
Samsung Galaxy S21360 × 8001080 × 24004216.2″
Samsung Galaxy S10+360 × 7601440 × 30405226.4″

Questions about the Google Pixel 4a screen

What is the screen size of the Google Pixel 4a?

The Google Pixel 4a has a 5.81-inch display. In CSS the viewport measures 393 × 851 px in portrait, and the panel itself has 1080 × 2340 physical pixels at 443 PPI.

What resolution should I design for on the Google Pixel 4a?

Design at 393 × 851 and export assets at 2.75×. That gives you 1080 × 2340 px images, which is exactly what the panel renders. Designing directly at 1080 × 2340 means every measurement is 2.75 times larger than the CSS values you will write.

What is the device pixel ratio of the Google Pixel 4a?

The Google Pixel 4a reports a device pixel ratio of 2.75. One CSS pixel therefore covers 7.56 device pixels. You can read it in JavaScript with window.devicePixelRatio.

Which other devices have the same viewport as the Google Pixel 4a?

2 other devices share the 393 × 851 CSS viewport: Google Pixel 5, Sony Xperia 1 VI. A layout that works on one works on all of them.

Related

Specifications from the manufacturer's published device data. Last verified 7 August 2026. CSS viewport values are the portrait window.innerWidth/innerHeight reported by the stock browser with no browser chrome. See methodology and sources.