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HDR400

HDR400 usually refers to VESA DisplayHDR 400, an entry-level HDR performance tier for monitors. It signals a defined peak-brightness capability, not overall picture quality.

What HDR400 means

On a monitor, HDR400 usually refers to VESA DisplayHDR 400, an entry-level HDR performance tier. The designation indicates that the display meets the tier’s requirements, including a specified peak-brightness capability under the relevant test conditions.

HDR400 is a capability and certification label, not a description of the monitor’s complete image quality. A monitor can carry the label while still differing substantially from another HDR400 monitor in contrast, black levels, colour performance, processing, and viewing experience.

Why it matters on MonitorFit

The label can help identify monitors intended to handle HDR games, films, and other HDR content rather than only standard dynamic range (SDR). It gives a buyer a more useful starting point than an unqualified “HDR” claim, provided the product page clearly identifies the standard being used.

It is most relevant if you plan to view HDR content. For general office work, web browsing, and SDR applications, other factors such as text clarity, resolution, ergonomics, and connectivity may matter more.

What HDR400 does not tell you

HDR400 is not a quality rating for the whole monitor. It does not, by itself, tell you:

  • Whether the monitor has local dimming or how effective any dimming system is
  • Its contrast performance, black-level detail, or uniformity
  • Its sustained brightness during extended use
  • How accurately it maps HDR content to the panel’s capabilities
  • Its colour gamut, calibration, viewing angles, or response behaviour
  • Which HDR input formats or gaming features are supported

A capability flag should therefore not be read as proof of excellent HDR. The exact implementation remains important.

What to check on a product page

Look for the full wording of the HDR claim and whether it explicitly names VESA DisplayHDR 400. Then check the separately listed display specifications, including brightness, contrast, dimming, colour coverage, panel type, resolution, refresh rate, and video inputs.

Product-specific details remain unknown when a listing only says “HDR400” without explaining the certification or providing supporting specifications. Do not infer those missing details from the label alone.

Nearby concepts include HDR10, SDR, peak brightness, local dimming, contrast ratio, and VESA DisplayHDR.

Related terms

contrast ratio

Contrast ratio describes the difference between a monitor’s brightest white and darkest black. Higher figures can indicate more separation, but only when measured under comparable conditions.

Learn more

HDR

HDR (High Dynamic Range) is a display capability for showing a wider range of brightness and color than standard dynamic range. An HDR label alone does not rate overall picture quality.

Learn more