device
What are my screen and system details
Resolution, viewport, OS, language, timezone, and theme — read in your browser.
Display and system data read locally in your browser. Nothing is sent to our servers.
Solutions that can help in your case
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How display and system detection works
We combine screen, window, and navigator data: resolution, viewport size, device pixel ratio, approximate platform, language, timezone, and color scheme preference — all in the browser.
Logical pixels (what CSS uses) can differ from physical monitor pixels on Retina/HiDPI. That is why “1920×1080” in the OS might not match the browser’s reported size one-to-one.
How to read the report
Open: Load the page; the report fills automatically.
Display: Check resolution, viewport, and density.
System: Review OS/language/timezone/theme.
Adjust: Fix OS scale or zoom before buying hardware.
Is the screen resolution or theme not what you expected?
Blurry UI, wrong zoom, dark mode fighting the system, or “this site looks tiny on my 4K monitor” are everyday issues. Most start with misunderstanding logical vs physical pixels.
This tool shows what the browser actually sees — the same surface websites use to lay out content. Fix OS scale, browser zoom, and monitor native resolution before buying new hardware.
Tips for clear, comfortable displays
- Set the monitor to its native resolution in OS display settings.
- Keep browser zoom at 100% when testing layout bugs.
- On Windows, try 100–125% scale for sharp text on 1080p; higher on 4K.
- On macOS Retina, prefer default recommended scaling.
- Match dark/light theme to ambient light; OLED can save power in dark mode.
- For design work, calibrate or use a quality IPS/mini-LED panel.
- Gamers: prioritize refresh rate (120 Hz+) and low motion blur.
- Remote work: ensure viewport height is enough for video call toolbars.
Resolution vs viewport
Screen resolution is the full display grid the browser reports. Viewport is the visible layout area inside the browser chrome (minus toolbars).
Responsive sites care more about viewport. Full-screen apps and games care more about screen metrics.
Pixel density (DPR) and blur
devicePixelRatio explains HiDPI: more physical pixels per CSS pixel. Images and canvases that ignore DPR look soft.
Blur often comes from non-native resolution, fractional OS scale, or browser zoom — not only a “bad monitor.”
Theme, language, and timezone
System color scheme, preferred languages, and timezone come from navigator/preferences. Sites use them for dark mode and localization.
They are not precise geolocation. Timezone can hint region but is not a GPS fix.
When a new monitor is worth it
If you work long hours, a larger sharp panel or higher refresh rate reduces fatigue. If the issue is only OS scale or zoom, hardware will not fix a settings problem.
Measure here, adjust settings, then decide.
When display hardware enters the chat
If native resolution is fine but size/refresh rate limit work or play, a better monitor helps more than another “cleaner” app. Prefer panels with clear specs (resolution, Hz, HDR claims you can verify).