Tests
Screen Resolution Test
Read the browser-reported screen size and current viewport. Resize the window or rotate your device to see the values update; inspect scaling in technical details.
Private by designProcessing happens locally in this browser. Device streams and raw readings are not uploaded.
What this test checks
How to use this test
Read the browser-reported screen size and current viewport. Resize the window or rotate your device to see the values update; inspect scaling in technical details.
What the results mean
Screen size describes the browser’s screen space; viewport size is the area available to this page.
Troubleshooting
Check browser zoom and operating-system scaling before comparing with panel specifications.
Browser limitation
Screen and viewport values are CSS pixels. DPR-scaled dimensions are only estimates; zoom, OS scaling and privacy settings can differ from the actual panel resolution.