New Monitor Test
The essential checks to run before your return window closes.
Best run in fullscreen with consistent room lighting · About 5 minutes · 4 recommended steps
Confirm the basics first.
These are browser-reported values. They describe the active display environment and can be affected by scaling.
Browser-reported display
Detecting display information…
What this inspection covers
7 checks in this order. Pause after any step; your session stays in this browser until you finish.
- Recommended
Resolution Checker
See the active screen, viewport, device pixel ratio and browser display capabilities.
- Recommended
Dead Pixel Test
Cycle through the solid colors and scan the entire panel for pixels that stay dark, bright or off-color.
- Recommended
Grayscale Test
Look for large uneven areas or bands on the gray patterns from your normal viewing distance.
- Optional
Backlight Bleed Test
Dim the room and view the black field straight on. Note fixed bright areas near the edges.
- Optional
Color Banding Test
Check the smooth gradients for abrupt steps, especially in dark tones.
- Recommended
Refresh Rate Test
Estimate active refresh timing from browser animation frames.
- Optional
Ghosting Test
Watch the moving pattern for trailing or smearing behind moving objects.
Frequently asked questions
How long does the new monitor inspection take?
The essential checks take about five minutes. You can pause after any step; your session stays in this browser until you finish it.
What should I do if I find a dead pixel on a new monitor?
Record it in your report first. Return windows and pixel policies differ between manufacturers and retailers, so compare the report with the seller's policy before you decide anything.
Do I need to install anything to inspect a new monitor?
No. Every check runs in your browser, nothing is uploaded, and no account is needed.