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Reading your display information…
Device check
Screen Resolution Test
See your reported screen size, viewport, pixel ratio, color depth and orientation in one clear report.
✓ Instant result✓ No sign-up✓ Runs in your browser
01
How to use this test
- Open the test on the display you want to inspect.
- Read the reported screen, viewport and pixel-ratio values.
- Resize the window or rotate your device to see the measurements update.
02
If something looks wrong
- Browser zoom and operating-system scaling can change reported CSS dimensions.
- Move the browser window to the correct monitor before comparing values.
- Use the display settings in your operating system to confirm the selected resolution.
Quick answers
Good to know.
Why is the reported size lower than my monitor resolution?+
Browsers often report CSS pixels after display scaling. The physical-pixel estimate combines that value with the device pixel ratio, but hardware reporting still varies.
What is device pixel ratio?+
It describes how many device pixels are used for one CSS pixel. High-density displays commonly use a value greater than one.