LG Ultrafine Evo 32U990A-S review: A strong 6K display competitor

Best Prices Today: LG Ultrafine Evo 32U990A-S

The ranks of 6K monitors remain slim, but LG’s Ultrafine Evo 32U990A-S adds another option. It separates itself from the alternatives with support for Thunderbolt 5, which includes a downstream port that can daisy-chain the connection to downstream displays or storage devices. It’s a good pick if you want to use Thunderbolt as a way to minimize cable clutter on your desk, but LG’s software support doesn’t stack up to the alternatives.

Read on to learn more, then see our roundup of the best monitors for comparison.

LG Ultrafine Evo 32U990A-S specs and features

The highlight of the LG Ultrafine Evo 32U990A-S is rather obvious. It’s the resolution. The 31.5-inch Nano IPS Black panel delivers a pixel count of 6144×3456. That’s a total of over 21 million pixels.

• Display size: 31.5-inch 16:9 aspect ratio
• Native resolution: 6144×3456
• Panel type: Nano IPS Black
• Refresh rate: 60Hz
• Adaptive sync: None
• HDR: Yes, VESA DisplayHDR 600 Certified
• Ports: 1x HDMI 2.1, 1x DisplayPort 2.1, 1x Thunderbolt 5 / USB-C with DisplayPort and 96 watts of Power Delivery, 1x Thunderbolt 5 / USB-C DisplayPort MST-out (daisy chain), 1x USB-C 3.2 Gen 2 upstream, 2x USB-C 3.2 Gen 2 downstream
• Audio: Yes, speakers included
• Extra features: LG Calibration Studio
• Supported OS: Windows, MacOS
• Price: $1,999.99 MSRP

It’s not all about resolution, though. The LG 32U990A-S also includes Thunderbolt 5 connectivity and a few downstream ports, which include DisplayPort-out and two USB-C 3.2 Gen 2 ports.

As you might expect, 6K resolution doesn’t come cheap, though your view on pricing may depend on your past experience with 6K displays. The LG 32U990A-S has a retail MSRP of $1,999.99 and so far has not received a significant discount.

That’s a lot of money, and you can find some less expensive 6K alternatives, like the Asus ProArt PA32QCV. But other 6K monitors, such as the Dell U3224KB and of course the Apple Pro Display XDR, are much more expensive.

LG Ultrafine Evo 32U990A-S design

The LG Ultrafine Evo 32U990A-S makes a good first impression. It’s constructed primarily from silver plastics that have a smooth, premium finish, though the stand includes metal elements for weight and durability. While the back of the display panel is simple, smooth plastic, the rear of the stand has an attractive art-deco finish. It’s unusual and helps the monitor stand out from its competition.

The stand also has a compact flat base keeps the monitor upright. Though it’s small, the stand felt stable on my desk. It allowed even less wobble or shake than most monitors in this price category. The stand adjusts for height, tilt, and rotates (pivots) 90 degrees for use in portrait mode. It doesn’t swivel, though, which is a downside. The monitor has a 100x100mm VESA mount for using with third-party monitor arms and stands.

Matthew Smith / Foundry

However, the stand is not a tool-free design. Two screws must be installed with a screwdriver to assemble it. That’s unusual, though not unheard of, and it makes setup ever-so-slightly more complex than normal.

LG also ships the monitor with an external power supply. This too is not unusual for a high-end monitor, but the power supply is large and bulky (at roughly 8 x 4 x 1.5 inches), so beware if you have a tight spot below or beneath your desk for the power supply. On the plus side, keeping the power supply external helps LG deliver the monitor’s slim, sleek look.

LG Ultrafine Evo 32U990A-S connectivity

While the LG Ultrafine Evo 32U990A-S is a 6K monitor, it’s also a Thunderbolt 5 monitor, and for some shoppers that could be just as important.

The LG 32U990A-S has three video inputs. One is the Thunderbolt 5 port with DisplayPort and 96 watts of Power Delivery. That 96-watt figure makes the display capable of powering all MacBook Pro models, though only mid-range Windows laptops. The Thunderbolt 5 port is flanked by an HDMI 2.1 and DisplayPort 2.1 port.

The monitor also has a Thunderbolt 5 downstream port with DisplayPort MST. Because of this, the monitor is capable of daisy-chaining connections to multiple downstream devices, including monitors and storage.

This is useful because it turns a single Thunderbolt 5 connection into several Thunderbolt 5 connections. You can, for example, make a Thunderbolt 5 connection from your laptop to the LG 32U990A-S, then daisy-chain from the LG 32U990A-S to a second Thunderbolt monitor, and then continue the chain from that second monitor to external Thunderbolt storage (or another peripheral).

However, the monitor’s connectivity is otherwise so-so. It has two downstream USB-C 3.2 Gen 2 connections, but no downstream USB-A and no Ethernet.

Matthew Smith / Foundry

The Dell U3224KB is otherwise a better all-in-one hub for connectivity, as it has many USB downstream ports, Ethernet, and more power delivery (140 watts). But, in fairness to LG, the Dell is $1,000 more expensive, and sticks to Thunderbolt 4.

The LG 32U990A-S also has a KVM switch and picture-by-picture features for managing multiple connections. That, however, is standard for this type of monitor.

Finally, you should know that all the monitor’s ports face towards the rear. This is in contrast to most monitors, which usually have ports that face down. Rear-facing ports are more accessible for connecting and disconnecting ports, and I generally like them, but they also make wall mounting difficult.

LG Ultrafine Evo 32U990A-S menus and features

Unfortunately, the LG Ultrafine Evo 32U990A-S is saddled with a bad menu system, and it left me frustrated.

The on-screen menu system is controlled with a responsive joystick tucked behind the center bezel. So far, so good. However, the menus themselves are not adequate. While the monitor does provide some decent image quality presets, including DCI-P3 and AdobeRGB modes, it doesn’t provide fine-grain, precise control of color temperature and gamma settings. That’s a disappointment.

Annoyingly, the menu system appears vertically on the right side of the display. It feels rather odd when using the controls, as they are centered. It’s a system that would make more sense with a remote control, but the 32U990A-S doesn’t have one.

Matthew Smith / Foundry

LG also provides software utilities. This includes LG Switch, which is used to control some monitor settings and to switch between displays, including LG webOS displays. It’s okay, but not as feature rich (in terms of image quality features) as similar software from BenQ, Dell, and Asus.

Calibration can be handled in LG’s Calibration Studio software. The LG 32U990A-S does not ship with a hardware calibrator, though, so you have to provide your own.

That in turn makes the usefulness of the software suspect. After all, colorimeters ship with their own software, and I really can’t think of a reason to use the LG Calibration Studio software instead of the software shipped with your colorimeter of choice. And to add insult to injury, the LG Calibration Studio software was finicky about detecting a connected PC, so I found it unreliable in practice.

Competitors like Dell and BenQ justify their own calibration software with additional features including built-in colorimeter hardware and the ability to manage multiple monitors remotely, which is useful if you need to calibrate all monitors on your desk or in a studio. But the LG 32U990A-S doesn’t provide these features.

The LG 32U990A-S includes a light sensor for automatic brightness adjustment. This is a good feature to have, however, it doesn’t work well here. I found the automatic brightness adjustment was often too dim, and I couldn’t find a feature to manually adjust how the automatic brightness functioned.

LG Ultrafine Evo 32U990A-S audio

A pair of speakers are bundled in the LG Ultrafine Evo 32U990A-S, though LG’s specifications don’t say anything specific about their capabilities. To me, they sound like a basic pair of speakers in the 2- to 3-watt range. Audio quality is passable for podcasts or ambient music played at low volume, but the speakers lack the bass and volume to provide real impact. External speakers or headphones are recommended.

LG Ultrafine Evo 32U990A-S SDR image quality

The LG Ultrafine Evo 32U990A-S is a 31.5-inch 6K monitor which, of course, means it provides superior sharpness. However, there’s more to the monitor than that. LG touts the display as a go-to choice for prosumers and creative professionals, and while the monitor’s menu system and software don’t live up to that, the monitor’s image quality certainly does.

Matthew Smith / Foundry

First up is brightness, and here the LG Ultrafine Evo 32U990A-S delivers a strong maximum SDR brightness result of 480 nits. Although this is not the brightest, it’s extremely bright, and it is also far more than what would ever normally be required for a computer monitor. Still, this is good news if you were planning to use the monitor in a bright environment.

What’s less encouraging, though, is the monitor’s display finish. It’s a sort of semi-gloss coat that diffuses reflections, but the presence of reflections on the screen is still more noticeable than I’d like. It’s not on par with the matte finish of BenQ’s DesignVue monitors, or close to Apple’s Nano-Texture finish.

Matthew Smith / Foundry

Next we have contrast, where the LG 32U990A-S delivered a contrast ratio of 1500:1. That’s a bit lower than I had expected, given that the monitor has a Nano IPS Black panel. Still, it’s a mid-pack result and not bad for a modern IPS display.

As with most LCD monitors, the LG 32U990A-S will show backlight glow when dark scenes are viewed in a dark environment. This is most noticeable when watching movies, streaming shows, or playing games. For that reason, people looking for a monitor that’s great for both work and play should consider an OLED alternative (though, unfortunately, no 6K OLED monitor is available to date).

Matthew Smith / Foundry

Now we come to color gamut, and this is where the LG 32U990A-S really comes through. The monitor delivered a color gamut that spans 96 percent of DCI-P3 and 100 percent of AdobeRGB, as well as 82 percent of Rec.2020.

As the graph shows, these are excellent results even when compared to other prosumer and professional monitors, which already tend to deliver excellent color performance. Indeed, only a handful of monitors I’ve ever tested deliver a wide color gamut.

This translates to a vivid, saturated image, and it also means you can work in wide color gamuts with confidence that you’re seeing a very wide swath of the colors that gamut is supposed to provide.

Matthew Smith / Foundry

In addition to a wide color gamut, the LG 32U990A-S has great color accuracy with an average color error of only 0.73. Importantly, no error was over a value of 2, so all of the colors tested were extremely accurate.

While some other monitors are even more accurate, all the monitors in this comparison are leaders in color accuracy. It’s a tough crowd. In actual use, I found the LG 32U990A-S delivered color that appeared realistic.

My only complaint about the LG’s color performance concerns its default color temperature, which I recorded at 7000K. That’s quite a bit off the preferred default target of 6500K, and it results in a color temperature that skews blue and sterile. The monitor does provide color temperature modes, but as mentioned earlier, these don’t claim to hit specific color temperature values in degrees Kelvin. You may need software calibration to dial it in.

The monitor doesn’t have gamma settings that claim specific gamma values, either, but the monitor was able to provide a default gamma curve of 2.2, which was where I like to see it.

Of course, sharpness is also a major strength of the LG 32U990A-S. The monitor’s 6144×3456 resolution, spread across a 31.5-inch display with a 16:9 aspect ratio, translates to a pixel density of 224 pixels per inch. For comparison, a 27-inch 4K monitor has about 163 pixels per inch—so the 6K monitor’s leap in sharpness is quite significant.

Whether the added sharpness is visible or significant will depend on your needs, however. Personally, I can tell a difference in sharpness from 4K to 6K, and I do like it—but I wouldn’t call it a must-have.

However, the added resolution can have benefits besides sharpness. If you work with 4K video, for example, a 6K monitor makes it possible to view a 4K preview in your video editing software without entering a full-screen mode. Similarly, it helps photographers work with very high resolution photos with less use of zoom.

LG Ultrafine Evo 32U990A-S HDR image quality

The LG Ultrafine Evo 32U990A-S supports HDR and is VESA DisplayHDR 600 certified. Testing the monitor’s HDR performance quickly showed that certification is earned, as the monitor reached a maximum HDR brightness of 748 nits—a great result.

Keep in mind, however, that this monitor lacks a way to effectively control dynamic contrast across the display panel. Bright objects in a scene tend to up the brightness of the whole scene, even if they occupy only a small portion of it. The lack of contrast is a major limitation and degrades HDR image quality. HDR can be bright, but won’t necessarily show all the luminance detail expected of an HDR display.

As such, I wouldn’t recommend using the HDR for movies and games. I also wouldn’t recommend it if you primarily create content in HDR. If you only need to occasionally view HDR to get a general idea of how it looks, though, the LG 32U990A-S is acceptable.

LG Ultrafine Evo 32U990A-S motion performance

Given its 6K display resolution, it shouldn’t come as a shock to hear the LG Ultrafine Evo 32U990A-S sticks to a 60Hz refresh rate. While a higher refresh rate might be nice, it would prove impractical in many situations. The IPS panel also provides modest quoted pixel response times of 5 milliseconds (the best IPS panels quote a millisecond or less).

In short, the monitor’s motion performance is mediocre. Fast moving objects show a lot of ghosting and fast camera pans across scenes can make details in the scene hard to discern. Scrolling text is also difficult to read.

None of this is a mark against the monitor, because it’s true of all 6K monitors at present. Still, it’s something to keep in mind if you’re also considering 4K alternatives, as you can find 4K monitors with far better motion clarity.

Is the LG Ultrafine Evo 32U990A-S worth it?

The LG Ultrafine Evo 32U990A-S is a competitive choice in the increasingly crowded arena of 6K monitors. It provides great color performance and color accuracy, as well as Thunderbolt 5 connectivity. The monitor makes some mistakes in usability, as it has a poorly implemented menu system, and LG’s software utilities are not on par with the competition. Still, if you want a 6K monitor with great image quality and plan to rely on Thunderbolt for connectivity, the 32U990A-S is a solid choice.