LG 27-inch 4K Smart Monitor Review UK (2026). Tested & Calibrated

A monitor isn’t just a purchase. It’s the interface between you and your work, your games, your content. Get it wrong and you’re stuck with eyestrain, washed-out colours, or stuttering gameplay for the next three years. That’s why I don’t take these reviews lightly.

LG’s 27-inch 4K Smart Monitor sits in the mid-range bracket, promising 4K resolution, smart TV features, and USB-C connectivity. But does it actually deliver, or is it another case of marketing specs masking mediocre performance? I’ve spent several weeks with this display to find out.

IPS means you get consistent colours from any angle, but blacks look grey in dark rooms. That’s just the nature of IPS technology. If you need deep blacks, you want VA or OLED instead.

The IPS glow is noticeable in the corners when viewing dark content in a dim room. Not terrible, but it’s there. This is why I always recommend viewing monitors in your actual lighting conditions during the return window.

The VRR range is narrow (48-60Hz), which means you need to maintain above 48fps for smooth adaptive sync. Drop below and you’ll see judder. This is fine for casual gaming but not competitive play.

Real-world response time is 8-12ms depending on the transition. You’ll see some trailing in fast-paced games, but it’s not egregious for a 60Hz IPS panel. Don’t expect 144Hz clarity though.

I tested this with fast-paced FPS games and yes, you can see ghosting. It’s not a deal-breaker for single-player games, but if you’re playing competitive shooters, you’ll notice the motion blur. That’s what happens when you combine 60Hz with standard IPS response times.

The default colour temperature runs slightly cool (around 6800K instead of 6500K). I’d recommend adjusting the RGB values manually or using a hardware calibrator if colour accuracy matters to your work.

HDR is technically supported but without local dimming or high peak brightness, you’re not getting a real HDR experience. SDR content looks better. Use HDR only if the source requires it.

The HDR support is basically a checkbox feature. Without local dimming or high peak brightness, you’re not getting proper HDR. I’d stick with SDR content where the display performs better anyway.

If you’re primarily a gamer, spend your money elsewhere. But if you game occasionally and want 4K for productivity, this can handle slower-paced titles just fine.

No DisplayPort is a bit odd, but the two HDMI 2.0 ports handle 4K 60Hz fine. The built-in speakers are rubbish, as expected. They’re fine for system sounds or video calls, but you’ll want external speakers or headphones for anything else.

The interface is the same webOS you’d find on LG TVs. It’s responsive, the apps work properly, and you can use your phone as a remote. AirPlay 2 works for Apple devices, and Screen Share works for Android. I tested both and they’re reliable – no dropouts or quality issues.

The “Home Office” features include remote PC access and Cloud PC support. I didn’t test these extensively, but they worked in basic testing. Whether you’ll use them depends on your workflow.

One practical benefit: you can watch Netflix during lunch without your PC running. Sounds trivial, but it’s nice to have. The built-in speakers are adequate for casual viewing at low volumes.

The Dell S2721QSA offers better ergonomics with its height-adjustable stand, which is a significant advantage if you don’t want to buy a separate monitor arm. But it lacks USB-C and smart features. Check out my full Dell S2721QSA review for details.

The BenQ EW2780U has better built-in speakers and slightly better HDR implementation, but costs more. It’s aimed at entertainment use rather than productivity.

If you want higher refresh rates, you’ll need to drop to 1440p. The Dell 27-inch 100Hz monitor offers smoother motion at lower resolution, or look at curved gaming monitors like the KTC 32-inch 170Hz if gaming is your priority.

The complaints are mostly from people who expected gaming performance or better ergonomics. If you understand what this monitor is designed for, you won’t be disappointed.

In the mid-range bracket, you’re choosing between gaming-focused displays with higher refresh rates or productivity monitors with better colour accuracy and features. This LG sits in the productivity camp with smart features as a bonus. You won’t find 144Hz at this tier with 4K resolution and USB-C included.

Compare this to budget 4K monitors under £150: you’d lose the USB-C connectivity, smart features, and likely get worse colour accuracy. Step up to the upper-mid bracket and you’d get better ergonomics and potentially better HDR, but you’d pay significantly more.

The smart features add genuine value if you’ll use them. If you won’t, you’re paying for functionality you don’t need. A basic 4K monitor would serve you just as well.

But be realistic about the limitations. The 60Hz refresh rate and standard IPS response times mean gaming performance is mediocre. The stand is basic. HDR is a checkbox feature. If these are deal-breakers, look elsewhere.