Mobile

Mobile website screenshots

See a public page at 390×844, the way a phone-sized Chromium window lays it out, including sites that look at the user agent before they choose a layout.

What the mobile preset sets

The viewport is 390 by 844 CSS pixels. The user agent is a current Android Chrome string, and the browser reports a touch device. Scale is 1, so the file is not a retina-sized image. That keeps memory predictable on the worker.

What it does not simulate

It does not run iOS Safari, and it does not model notches, slow radios, or a specific Android skin. A bug you can only reproduce in WebKit will not show up. Use this preset to catch layout and content problems in a phone-sized Chromium, which covers a large share of mobile design review.

Safe-area padding and installed-app modes are not applied. If the page depends on them, say so in the ticket next to the image.

Pair it with a desktop shot

A single mobile image cannot show that the desktop nav still works. Capture both presets when you are checking a responsive change. Both count toward the daily quota.