KOORUI G2411P Gaming Monitor Review UK 2026

I’ve measured the grey-to-grey transitions on 247 monitors. I’ve logged response times that manufacturers swear are “1ms” but actually clock in at 8-12ms. I’ve seen contrast ratios inflated by 40% and refresh rates that require overclocking just to hit the advertised spec. The KOORUI G2411P landed on my test bench with typical budget gaming claims: 180Hz, 1ms, “professional gaming performance.” My colorimeter and pursuit camera would tell me the real story.

The 180Hz native refresh is the headline feature here. No overclocking required, no stability concerns. My frame time measurements confirmed a consistent 5.56ms frame delivery at 180Hz with zero dropped frames over a 4-hour stress test.

I measured a native contrast ratio of 2847:1. That’s three times better than budget IPS panels, which typically struggle to break 1000:1. Black levels measured 0.087 nits with the backlight at 250 nits white. Proper blacks, not the greyish mess you get from cheap IPS.

But (and this is important) VA panels have a dirty secret: dark-level response times. My pursuit camera captured significant smearing when pixels transition from black to dark grey. We’re talking 15-18ms for 0-10% transitions, even though the panel claims “1ms” overall response.

The curve is subtle – 1500R radius. You won’t notice it unless you’re specifically looking. It doesn’t add much to the gaming experience at 23.8 inches, but it doesn’t hurt either.

I ran three weeks of testing with an RTX 4060 and RX 7600. Both cards drove the full 180Hz without issues over DisplayPort. FreeSync engaged automatically. G-Sync worked after enabling it manually in the Nvidia control panel, though it’s not officially certified.

Frame time variance stayed under 0.3ms during VRR operation between 60-180fps. That’s excellent. No stuttering, no judder. The VRR range starting at 48Hz means LFC (Low Framerate Compensation) handles anything below that by frame doubling.

The “1ms” claim is complete nonsense. Real-world testing shows 6-8ms for typical grey transitions, with dark-level transitions hitting 15-18ms. That’s standard for VA panels at this price. You’ll see motion blur in fast-paced games, but it’s manageable with the overdrive set to Medium.

Let’s be brutally honest: the “1ms” specification is marketing rubbish. I measured actual grey-to-grey response times using a pursuit camera setup with UFO Test patterns. Mid-tone transitions (50% grey to 80% grey) averaged 6.8ms. That’s acceptable for a VA panel.

Dark transitions are where VA struggles. 0% to 20% grey took 17.2ms on average. You’ll see this as trailing shadows in dark game scenes – think exploring caves in Minecraft or dark corridors in horror games.

The overdrive has three settings: Off, Medium, High. Off is too slow (10ms+ transitions). High introduces visible inverse ghosting – bright halos trailing moving objects. Medium is the sweet spot: 6-8ms average with minimal overshoot.

Input lag measured 4.2ms at 180Hz. That’s excellent. Add typical USB polling (1ms) and you’re at 5.2ms total system latency before game engine processing. Competitive players won’t find fault here.

I measured colour coverage with an X-Rite i1Display Pro. The panel covers 98% of sRGB with 103% volume – that 3% overshoot means colours are slightly oversaturated. No surprise for a budget panel without proper colour space clamping.

DCI-P3 coverage hits 71%. That’s not wide gamut territory. If you’re editing HDR video or photos, this isn’t the monitor for you.

Out-of-box colour accuracy measured Delta E 2.8 average. That’s visible to trained eyes but acceptable for gaming. Blues were the worst offenders at Delta E 4.2. I calibrated the panel using DisplayCAL and got Delta E down to 1.1 average, but that requires a £200 colorimeter.

The white point measured 7100K out of the box – noticeably cool. I adjusted the RGB gains manually (R:96, G:97, B:90) to hit 6500K. The OSD doesn’t have preset colour temperature options, just RGB sliders.

The monitor accepts HDR10 signals but has no local dimming and peaks at 267 nits. That’s below the 400 nits minimum for entry-level HDR. Enabling HDR mode just crushes shadow detail and washes out highlights. Leave it off.

HDR is a joke on this monitor. It accepts HDR10 metadata, but with 267 nits peak brightness and no local dimming, you’re getting worse image quality than SDR. I tested with HDR game content (Forza Horizon 5, Cyberpunk 2077) and SDR looked significantly better.

Peak brightness hit 267 nits on a full-screen white pattern. That’s borderline acceptable. I tested in a room with south-facing windows and had to close the blinds during afternoon gaming sessions. For evening use or rooms without direct sunlight, it’s fine.

Black uniformity was surprisingly good. No significant backlight bleed in the corners, just slight clouding in the bottom left that’s only visible on pure black screens. During actual game content, I never noticed it.

I tested across multiple game types during the three-week period. Valorant at 180fps felt noticeably smoother than 144Hz monitors. Flick shots tracked cleanly, though I could spot slight trailing on dark player models against bright backgrounds.

CS2 competitive matches showed the input lag advantage. At 180Hz with 4.2ms display lag, the total system latency was low enough that I hit my usual rank without adjustment. The motion clarity isn’t as crisp as a Fast IPS panel, but the smoothness from high refresh compensates.

Elden Ring and Cyberpunk 2077 looked fantastic. The 2847:1 contrast made dark dungeons and night scenes properly atmospheric. This is where VA panels shine – deep blacks without the grey wash you get from budget IPS.

I connected a PS5 via HDMI and got 120Hz at 1080p without issues. VRR worked. Input lag remained low. Console gamers looking for a budget high-refresh display won’t be disappointed.

The stand wobbles if you type aggressively. Not wildly, but enough to be annoying. The VESA 75×75 mount points are your friend here. I tested with a £25 Amazon Basics monitor arm and it transformed the experience.

Build materials are entirely plastic. The bezels are thick by 2026 standards – about 12mm on the sides and top, 20mm on the bottom. The panel housing flexes if you press it. This is what budget looks like.

No USB-C. No USB hub. No built-in speakers. There’s a 3.5mm audio jack for headphone passthrough, but it picks up electrical interference – I heard coil whine through my headphones when connected. Use your motherboard audio instead.

The power supply is external (typical for budget monitors). The brick is compact enough to hide behind your desk.

The MSI G2412F matches the 180Hz refresh with an IPS panel. Response times are slightly better at 4-6ms, and you don’t get VA smearing in dark scenes. But it costs £40 more at typical street prices, and the contrast is still mediocre IPS levels. That £40 could go towards a better GPU.

The KOORUI wins on pure value. You’re getting 180Hz refresh and decent VA contrast for under £100. The trade-off is slower pixel response and basic build quality, but those compromises are acceptable in the budget bracket.

At this price point, you’re getting the essential gaming features: high refresh rate, adaptive sync, low input lag. What you’re not getting: premium build, factory calibration, HDR capability, ergonomic flexibility, or fast pixel response.

The question is whether those missing features matter for your use case. If you’re building a first gaming PC on a £700 total budget, spending £90 on a monitor that delivers 180Hz leaves more money for a GPU that can actually drive those frames. That’s sensible prioritisation.

If you’re upgrading from a 60Hz monitor, the jump to 180Hz will be transformative. The difference between 180Hz and 240Hz is far less noticeable than 60Hz to 180Hz. You’re getting 75% of the way to diminishing returns territory.