ScreenDetailed: devicePixelRatio property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The devicePixelRatio read-only property of the ScreenDetailed interface is a number representing the screen's device pixel ratio.

This is the same as the value returned by Window.devicePixelRatio, except that Window.devicePixelRatio:

  • always returns the device pixel ratio for the current screen.
  • also includes scaling of the window itself, i.e. page zoom (at least on some browser implementations).

Value

A number.

Examples

js
const screenDetails = await window.getScreenDetails();

// Return the device pixel ratio of the first screen
const screen1DPR = screenDetails.screens[0].devicePixelRatio;

Specifications

Specification
Window Management
# ref-for-dom-screendetailed-devicepixelratio

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
devicePixelRatio
Experimental

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
Experimental. Expect behavior to change in the future.

See also