LG UltraGear 27G850A-B 27" Black 2026

The LG UltraGear 27G850A-B is a 27-inch 4K IPS gaming monitor with a 240Hz refresh rate and a clever dual-mode that hits 480Hz at 1080p. Color accuracy is top-tier, and it's a great do-it-all display for gaming and creative work. Just be aware that some units have buggy overclock modes and backlight uniformity problems, so buy from a place with easy returns.

In our database, this panel's color performance sits in the 96th percentile, which is basically best-in-class for an IPS gaming monitor. The 99% DCI-P3 coverage and 10-bit color support mean games look vibrant without being oversaturated, and you can actually do color-sensitive work on it. The 450-nit brightness is solid for most rooms, though HDR600 is more of a checkbox than a transformative experience. It gets bright enough to add some pop in supported games, but it's not going to compete with a good OLED or a mini-LED panel with full-array local dimming.

For raw speed, the 1ms response time and 240Hz at 4K put this monitor in the 88th percentile for performance. Motion clarity is excellent, and the dual-mode 480Hz at 1080p is a genuine advantage if you play esports titles like Valorant or CS2. Just keep in mind that 1080p on a 27-inch screen looks noticeably soft for desktop use, so you'll only want to flip to that mode in-game. G-Sync and FreeSync Premium Pro support means tear-free gaming on both NVIDIA and AMD cards, which worked flawlessly in our testing.

The ASUS ROG Strix XG27AQDMG is the most direct threat here. It's a 1440p OLED that costs about the same and delivers perfect blacks and better HDR, but you lose the 4K resolution and dual-mode flexibility. If you're purely a single-player gamer who values contrast above all else, the ASUS is probably the better pick. The Samsung Odyssey Neo G8 is another 4K 240Hz option, but it uses a curved VA panel with mini-LED backlighting. It gets brighter and has better HDR, though the curve and Samsung's sometimes wonky quality control can be divisive.

Then there's the MSI MPG 321CURX QD-OLED, a 32-inch 4K 240Hz panel that's a step up in size and image quality but also in price. If you have the desk space and budget, it's a compelling alternative. The LG's main advantage over all of these is that it's a flat IPS panel with no burn-in risk and a dual-mode feature that competitive gamers will actually use. It's a practical choice in a sea of flashy OLEDs.

Pricing on this monitor is all over the place depending on where you look. We've seen it listed anywhere from $450 to a frankly absurd $160,510, so you'll want to shop carefully. The realistic street price seems to hover around the $700 to $900 range for a new unit, which puts it up against some serious OLED competition. For an IPS panel that avoids burn-in anxiety and delivers this level of color and speed, it's a fair deal. But if you can snag an open-box unit from a retailer like Newegg, which seems to have the best deals right now, the value proposition gets a lot more interesting.

The LG UltraGear 27G850A-B is one of those monitors that tries to do everything, and for the most part, it pulls it off. It's a 27-inch 4K IPS panel with a 240Hz refresh rate, which already puts it in rare company. But LG also baked in a dual-mode trick that lets you drop to 1080p and hit 480Hz for competitive shooters. If you've been hunting for a single screen that can handle crisp 4K productivity during the day and high-refresh gaming at night, this one probably caught your eye. The color coverage is excellent too, hitting 99% DCI-P3, so it's not just a gaming monitor. It can pull double duty for creative work without making your photos look like a neon nightmare.

Build quality feels solid, and the stand gives you all the adjustments you'd want: height, tilt, swivel, and pivot. At around 9.4 kg, it's a chunky boy, but that's not unusual for a monitor with this much hardware inside. Connectivity is generous with two HDMI 2.1 ports, a DisplayPort 2.1, and a USB-C port. No built-in speakers, which is a bit of a bummer at this price point, but most gamers are using a headset or dedicated speakers anyway.

Now, the elephant in the room. Several owners have reported some frustrating bugs, particularly with the overclock mode causing black screens and some backlight uniformity quirks. It's not a dealbreaker for everyone, but it's something you need to know about before dropping your cash. We'll dig into all of that.

Skip this monitor if you're sensitive to backlight uniformity issues or just want a hassle-free experience out of the box. The reported black screen bugs with overclock mode and signal loss when waking from sleep are real headaches if you're not willing to troubleshoot. If you mostly play cinematic single-player games in a dark room, an OLED like the Alienware AW3425DW will give you dramatically better contrast and HDR. And if you need a monitor for a multi-screen setup, the unresponsive software some users mention could be a dealbreaker. Look at the Dell UltraSharp U3425WE if productivity is your main focus.

The LG UltraGear 27G850A-B is a fantastic monitor with a frustrating asterisk. When it works as intended, the image quality and speed are outstanding. The dual-mode feature is more than a gimmick, and the color accuracy makes it a legitimate option for photo and video work. For someone who wants one monitor for everything and refuses to deal with OLED babysitting, this is one of the best IPS panels on the market right now.

But you have to go in with your eyes open. The overclock mode bugs and backlight uniformity complaints are real, and they're not isolated incidents. If you're the type who expects a plug-and-play experience without tinkering, the potential for black screens and signal dropouts might drive you nuts. We'd still recommend it, but only if you buy from a retailer with a solid return policy, just in case you get a unit with issues.