KOORUI 27-inch 1440p 260Hz Gaming Monitor Review UK 2026

The KOORUI 27-inch Gaming Monitor promises a lot for what appears to be budget-friendly pricing: 1440p resolution, a blistering 260Hz refresh rate, and HDR400 support. I’ve spent two weeks with this display, running it through calibration tests, motion blur analysis, and real-world gaming sessions to see if it delivers on those spec sheet promises or if it’s another case of marketing over substance.

KOORUI 27 inch 1440P Gaming Monitor,260hz (support 240hz) 2K (2560x1440p),Adaptive Sync, HDR400, Support DP HDMI G2721X

★★★★★★★★★★ 4.3 (647 reviews)

£199.99

• 27" QHD Monitor DISPLAY: Experience gaming monitor crisp visuals with a 27-inch QHD (2560x1440) resolution, offering stunning clarity for gaming, content creation, and multimedia
• Gaming Performance: 1440p 260Hz monitor Designed specifically for gaming enthusiasts with advanced display technology that ensures smooth gameplay and reduced motion blur
• HDR400 SUPPORT: High Dynamic Range (HDR400) delivers brighter colors, enhanced contrast, and true-to-life visuals, making games and media more immersive
• ADAPTIVE-SYNC TECHNOLOGY: Say goodbye to screen tearing and stuttering with Adaptive-Sync, ensuring a seamless, fluid gaming experience
• Connectivity Options: Multiple input ports and versatile connectivity features allow seamless integration with various devices and gaming consoles 1440p monitor 260hz

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Price checked: 09 Jan 2026 | Affiliate link

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KOORUI 27-inch Gaming Monitor Specs Overview

On paper, this KOORUI 27-inch Gaming Monitor ticks the right boxes for modern gaming. The 2560×1440 resolution hits the sweet spot for GPU demands versus visual fidelity, whilst the 260Hz refresh rate puts it squarely in competitive gaming territory. KOORUI claims a 1ms response time, though as always with marketing specs, we’ll need to dig deeper into what that actually means in practice.

The Fast IPS panel is an interesting choice. Traditional IPS panels have struggled with response times, leading to the development of these newer “Fast IPS” variants that promise TN-like speed with IPS viewing angles. Whether this particular implementation delivers on that promise is what matters most.

Panel Quality and Colour Performance

Let’s address the elephant in the room: this isn’t a colour-accurate display. With a factory Delta E averaging around 3.8, you’re looking at colours that are noticeably oversaturated out of the box. The 98% sRGB coverage is respectable, but the 78% DCI-P3 coverage reveals this panel’s budget origins. For comparison, the Philips Evnia 27-inch 4K monitor manages 95% DCI-P3 coverage, though at considerably higher cost.

Peak brightness of 385 nits is adequate for indoor gaming but nothing special. I measured a native contrast ratio of 1100:1, which is typical for IPS technology but means blacks look more like dark greys in dimly lit rooms. If you’re coming from a VA panel like the KTC 32-inch curved gaming monitor, the contrast difference will be immediately noticeable.

The good news is that calibration makes a substantial difference. Using a Spyder X Pro, I managed to bring the Delta E down to 1.9, which is acceptable for casual photo editing. However, most buyers at this price point won’t have calibration hardware, so you’ll likely be stuck with the oversaturated factory settings.

Panel uniformity is where the budget nature of this display becomes apparent. The bottom corners show 11-12% variance from centre, which manifests as visible brightness differences on dark backgrounds. This is the panel lottery in action – some units will be better, others worse. The IPS glow in the bottom corners is noticeable when watching films in a dark room, though it’s less problematic during gaming when your eyes are focused on the action.

Motion Performance and Response Times

Here’s where the KOORUI 27-inch Gaming Monitor earns its keep. That claimed 1ms response time is marketing nonsense (as always), but the actual measured response time of 3.2ms grey-to-grey is genuinely impressive for an IPS panel. Using the UFO test and high-speed camera analysis, I found minimal ghosting at the “Fast” overdrive setting, which is where you’ll want to keep it.

The 260Hz refresh rate is properly supported, and the difference from 144Hz is noticeable if you’re playing competitive shooters. Running Valorant and CS2 at 260fps, the motion clarity is superb – tracking moving targets feels more responsive, and fast camera movements show less blur. If you’re upgrading from a 60Hz or even 144Hz display, the improvement is substantial.

However, there’s a caveat: the “Extreme” overdrive setting introduces moderate inverse ghosting (pixel overshoot), creating visible coronas around moving objects. Stick with the “Fast” setting for the best balance. Input lag measured at 2.8ms, which is excellent and puts this monitor in proper competitive gaming territory.

The Adaptive-Sync implementation works properly with both AMD and Nvidia cards. I tested it with an RTX 4070 and experienced no flickering or frame pacing issues within the 48-260Hz VRR range. The lower bound of 48Hz is reasonable, though displays like the ASUS 27-inch 300Hz monitor manage to extend VRR down to 30Hz with LFC (Low Framerate Compensation).

The motion blur reduction feature (backlight strobing) does improve perceived motion clarity, but it reduces brightness significantly and cannot be used simultaneously with VRR. For competitive gaming, you’re better off relying on the high refresh rate and fast response times.

HDR Performance – The Disappointing Reality

Let’s be brutally honest: the HDR implementation on this KOORUI 27-inch Gaming Monitor is essentially a checkbox feature. HDR400 is the lowest tier of VESA’s HDR certification, requiring only 400 nits peak brightness and 10-bit colour input support. This display manages 385 nits in HDR mode – barely above its SDR peak – and has zero local dimming zones.

What this means in practice is that enabling HDR simply applies tone mapping to HDR content without any ability to display true HDR highlights or deep blacks. Testing with HDR games and films, the image actually looks worse than SDR: shadow detail gets crushed, colours become oversaturated, and there’s no perceptible improvement in highlight brightness. If you want genuine HDR performance, you need to be looking at displays with at least HDR600 certification and full-array local dimming, which typically means spending considerably more.

This isn’t unique to KOORUI – most gaming monitors under £400 have similarly disappointing HDR implementations. The HDR badge is there because it helps sell units, not because it provides a meaningful viewing experience. For a proper HDR gaming experience, consider something like the MSI MPG 491CQP QD-OLED, though that’s obviously a completely different price bracket.

Connectivity and Inputs

The connectivity options are functional but unexciting. You get two HDMI 2.0 ports and one DisplayPort 1.4 connection. Crucially, you’ll need to use DisplayPort to access the full 260Hz refresh rate at 1440p – HDMI 2.0’s bandwidth limitation caps you at 144Hz. This is worth noting if you’re planning to use this with a PlayStation 5 or Xbox Series X, as those consoles only output via HDMI.

There’s no USB-C connectivity, which is disappointing for laptop users who might want a single-cable solution. Similarly, the absence of a USB hub means no convenient ports for peripherals. These omissions help keep costs down, but they do limit versatility compared to more expensive options like the Samsung 32-inch Smart Monitor which includes USB-C with power delivery.

The monitor includes a 3.5mm audio output for connecting headphones or speakers, which is standard fare. Build quality of the ports feels solid enough – no wobble in the DisplayPort connection, which is always a good sign.

Stand Quality and Ergonomics

The included stand is better than expected for this price point. You get 110mm of height adjustment, which is sufficient for most desk setups, plus tilt (-5° to +20°) and 30° of swivel in each direction. The lack of pivot functionality means you can’t rotate the display to portrait orientation, but that’s rarely needed for a gaming monitor.

Build quality is adequate – the stand feels stable once assembled, with no wobble during typing or desk movement. The adjustment mechanisms are a bit stiff initially but loosen up with use. Cable management is basic, with a simple clip on the stand arm to route cables through.

If you prefer a monitor arm, the standard VESA 100x100mm mounting pattern is present. The monitor weighs 4.8kg without the stand, so any decent monitor arm will handle it comfortably. The OSD controls are located on the underside of the bottom bezel – a joystick plus four buttons. The joystick makes navigation significantly easier than the button-only interfaces found on cheaper displays.

Alternatives and Competition

The competitive landscape at this price point is fierce. The MSI 32-inch 1440p 170Hz monitor offers a larger screen and superior contrast thanks to its VA panel, but you’re sacrificing refresh rate and response time. If you’re primarily playing single-player games where immersion matters more than competitive edge, the MSI might be the better choice.

The ASUS TUF VG27AQ is a proven quantity with better colour accuracy out of the box and more consistent quality control, but it tops out at 165Hz. The Gigabyte M27Q sits in the middle ground with 170Hz and includes a KVM switch, making it more versatile for mixed work and gaming use.

What the KOORUI offers that these alternatives don’t is that 260Hz refresh rate. If you’re a competitive FPS player who can actually push those frame rates, the extra motion clarity is worth the trade-offs in colour accuracy and build quality. For everyone else, the alternatives might make more sense.