What Does HDR400 Actually Mean on a Budget Monitor?

The short answer

VESA's DisplayHDR 400 badge certifies the entry level of HDR capability: the panel accepts HDR10 signals, reaches at least 400 nits of peak brightness, and meets baseline color requirements. What it does not require is local dimming or a wide-gamut panel — the two things that create the dramatic bright-highlights-against-deep-blacks look people imagine when they hear “HDR.” So HDR400 means “HDR-compatible and brighter than a basic SDR screen,” not “the HDR you saw on an OLED TV.”

What you actually get

• Higher peak brightness than typical SDR budget panels — punchier highlights in bright scenes
• HDR10 signal support — consoles and PCs can send HDR content without errors
• A guaranteed minimum, verified by certification — unlike vague “HDR ready” marketing
• Not included: local dimming, so contrast stays at the panel's native level — dark scenes will not gain depth

Should HDR400 influence your purchase?

Treat it as a tiebreaker, not a headline. Buy the monitor for its panel type, refresh rate, and size — then take HDR400 as a welcome brightness bonus. The Koorui G2511P, for example, earns its place with a 200Hz fast IPS panel; its HDR400 support means brighter highlights on top of that, honestly labeled. If you are still choosing a panel technology first, start with our IPS vs VA vs TN explainer.