The LG 27GX700A-B is a 1440p, 280Hz OLED gaming monitor. It's LG's first model to use the fourth-gen RGB Tandem OLED panel, which is meant to offer brighter highlights and more vivid colors compared to monitors with previous-generation WOLED panels, like the LG 27GX790A-B. It competes with other models that use the same panel, such as the Gigabyte MO27Q28G and the ASUS ROG Strix OLED XG27AQWMG, which features a TrueBlack Glossy coating, unlike this monitor's matte coating. It has typical gaming features, like HDMI 2.1 bandwidth, G-SYNC Compatibility, and FreeSync Premium Pro, but unlike some other premium OLEDs, it lacks DisplayPort 2.1 bandwidth. It also includes a small USB hub, and its audio jack supports DTS Headphone:X to simulate surround sound audio.
Our Verdict
The LG 27GX700A-B is incredible for PC gaming. Its 280Hz refresh rate and VRR support offer a smooth feel, it has a near-instantaneous response time for sharp motion, and input lag is low for a responsive feel. It also has incredible picture quality thanks to its deep blacks and no haloing around bright objects. It's very bright, especially for an OLED, so highlights pop, but it prioritizes this high brightness over image accuracy. There are some other downsides for gaming, like the fact that it has distracting VRR flicker with changing frame rates. It also features visible banding that can be distracting in dark game scenes.
Near-instantaneous response time for sharp motion.
Low input lag at any refresh rate.
Very bright for an OLED; highlights pop.
280Hz refresh rate and VRR support.
Deep and inky blacks.
Vertical banding in dark content.
Prioritizes brightness over accuracy.
Distracting VRR flicker.
The LG 27GX700A-B is fantastic for console gaming. It supports signals up to 4k @ 120Hz with a modern gaming console, but it has to downscale 4k signals to 1440p. Motion looks sharp thanks to its near-instantaneous response time, and it has low input lag for a responsive feel. It also delivers incredible picture quality, particularly in HDR, thanks to its near-infinite contrast ratio that results in deep blacks. It's very bright for an OLED as small highlights pop, but it does this by prioritizing brightness over accuracy, so games look overbrightened. Unfortunately, it exhibits noticeable banding in dark scenes, which can be distracting.
Near-instantaneous response time for sharp motion.
Low input lag at any refresh rate.
Very bright for an OLED; highlights pop.
Deep and inky blacks.
HDMI 2.1 bandwidth supports most signals from consoles.
Vertical banding in dark content.
Prioritizes brightness over accuracy.
No Dolby Vision support from an Xbox.
The LG 27GX700A is good for office use, with some limitations. It's fine if you want to use it in an office with a few lights around, as it gets bright and its matte coating reduces glare well. It also comes with an ergonomic stand and features a wide viewing angle, making it a good choice if you want to share the screen with someone next to you. However, there's fringing around text, so it doesn't look as sharp as other monitors with the same pixel density. It also risks burn-in with constant exposure to the same static elements over time, which can be problematic if you use the monitor only for work.
Ergonomic stand.
Coating reduces glare well.
Wide viewing angle.
Limited to 1440p resolution.
Fringing around text.
Risk of burn-in.
The LG 27GX700A-B is excellent for editing. It has an accurate sRGB mode that limits colors to the sRGB color space, but a full calibration still improves its gamma tracking. It also delivers incredible picture quality thanks to its deep blacks, no haloing around bright objects, and wide range of colors that it displays. It even gets bright, which helps if you edit content in a well-lit room, but it does so by overbrightening all content. Unfortunately, it has vertical banding in dark scenes, which can get distracting if you use your program's dark mode. It also risks burn-in, a problem that occurs when your editing program remains on-screen without changing content.
Very bright for an OLED; highlights pop.
Deep and inky blacks.
Coating reduces glare well.
Accurate sRGB mode before calibration.
Wide viewing angle.
Vertical banding in dark content.
Fringing around text.
Risk of burn-in.
Gamma is too bright; needs a full calibration to fix.
Prioritizes brightness over accuracy.
The LG 27GX700A-B has good brightness. It gets bright, especially for an OLED, so it fights glare well and makes highlights pop. However, it prioritizes brightness over accuracy, so it overbrightens content.
Very bright for an OLED; highlights pop.
Prioritizes brightness over accuracy.
The LG 27GX700A has a near-instantaneous response time for incredibly sharp motion.
Near-instantaneous response time for sharp motion.
The LG 27GX700A-B has incredible HDR picture quality. It covers most of the DCI-P3 and Rec. 2020 color spaces, and makes most vivid colors look bright. It also has a near-infinite contrast ratio for deep blacks in dark rooms, without any haloing.
Deep and inky blacks.
Covers most of common color spaces.
Vertical banding in dark content.
The LG 27GX700A-B has remarkable SDR picture quality. It displays deep blacks without any haloing around bright objects, and it displays a wide range of colors.
Deep and inky blacks.
Covers most of common color spaces.
The LG 27GX700A has fantastic color accuracy. Its sRGB mode is accurate before any sort of calibration, as it limits colors well to the sRGB color space. However, there are inaccuracies with gamma tracking that you need to fix with a full calibration.
Accurate sRGB mode before calibration.
Gamma is too bright; needs a full calibration to fix.
Prioritizes brightness over accuracy.
Performance Usages
Changelog
-
Updated Mar 09, 2026:
We clarified in the Intro the main differences between this monitor and the competing ASUS ROG Strix OLED XG27AQWMG.
-
Updated Feb 25, 2026:
We updated the firmware to version (3.03, 2.04) and checked to see if the HDR brightness changed.
-
Updated Feb 25, 2026:
We added that the LG 27GX790B-B is another option with a higher refresh rate.
-
Updated Feb 06, 2026:
We noticed that the vertical banding is less visible at low refresh rates than at higher refresh rates.
Check Price
Differences Between Sizes And Variants
We bought and tested the 27-inch LG 27GX700A, which is the only size available. It's LG's only model to have the fourth-gen WOLED RGB Tandem panel. You can see the differences between other 27-inch, 1440p OLEDs in the UltraGear lineup:
| Model | Panel | Max Refresh Rate | Coating |
|---|---|---|---|
| 27GX700A-B |
4th-gen WOLED (RGB Tandem OLED) |
280Hz | Matte |
| 27GX790A-B | 3rd-gen WOLED | 480Hz | Matte |
| 27GX704A-B | 3rd-gen WOLED | 240Hz | Glossy |
Our unit's label indicates it was manufactured in September 2025 in Mexico. We tested it with firmware version 3.02, 2.04.
Popular Monitor Comparisons
The LG 27GX700A-B is a 27-inch, 1440p OLED gaming monitor with a 280Hz refresh rate. It's part of the first group of models that feature the new fourth-gen RGB Tandem OLED panel, competing with the Gigabyte MO27Q28G and the ASUS ROG Strix OLED XG27AQWMG. This new panel allows the monitor to get brighter than previous-generation OLED panels. It also has better color purity than other WOLEDs, like the LG 27GX790A-B, but colors still aren't as vivid as on a QD-OLED, like the MSI MPG 271QRX QD-OLED. However, it overbrightens content, so it prioritizes brightness over accuracy in HDR. It also has some other issues, such as vertical banding in dark scenes and the lack of premium features, including DisplayPort 2.1 bandwidth. While it's far from a perfect monitor, it's still a fantastic gaming OLED that offers a fast refresh rate and smooth feel, and it costs less than higher-end 4k OLEDs.
Also see our recommendations for the best 240Hz monitors, the best 1440p gaming monitors, and the best 27-inch gaming monitors.
The Gigabyte MO27Q28G and the LG 27GX700A-B perform almost identically, as they share the same panel. There are some minor differences in picture quality due to how each manufacturer has tuned the panel, but they are minor overall. For example, the LG over-brightens some images, whereas the Gigabyte slightly crushes midtones and bright highlights in SDR. The Gigabyte unit we bought shows a noticeable red tint on certain shades of gray, but the LG doesn't. It seems to vary between units, though, so not all Gigabytes will have it.
The LG 27GX700A-B and the ASUS ROG Strix OLED XG27AQWMG are both 1440p, 280Hz gaming monitors with a Tandem OLED panel. They perform similarly for the most part, but one difference is their screen coatings. The ASUS has a glossy coating with a clearer image, while the matte coating of the LG has fewer mirror-like reflections. The LG also gets brighter, but it does this by overbrightening the entire image, so the ASUS is more accurate.
The LG 27GX700A-B and the ASUS ROG Strix OLED XG27AQDMG are both 1440p OLED gaming monitors. The LG uses a newer RGB Tandem OLED panel, which gets brighter and displays more vivid colors than the WOLED panel of the ASUS. However, the LG is inaccurate with its brightest settings, so the ASUS is more accurate while still getting fairly bright. The LG is a bit more well-rounded in terms of features, as it supports HDMI 2.1 bandwidth, so it supports more signals with consoles than the ASUS.
The LG 27GX700A-B is a newer OLED gaming monitor than the LG 27GX790A-B. They have many of the same features, but have WOLED panels from different generations. The 27GX700A-B utilizes the newer RGB Tandem OLED panel, which offers brighter performance and improved color purity compared to the 27GX790A-B. However, the 27GX700A-B is less accurate in HDR because it overbrightens content. The 27GX790A-B is more well-rounded for gaming because it has a higher refresh rate for a smoother feel, and it comes with DisplayPort 2.1 bandwidth to take advantage of modern graphics cards, which the 27GX700A-B doesn't have.
We buy and test more than 30 monitors each year, all of which we purchase ourselves, without cherry-picked units or samples. We put a lot into each unbiased, straight-to-the-point review, and there's a whole process from purchasing to publishing, involving multiple teams and people. We do more than just use the monitor for a week; we use specialized, custom tools to measure various aspects and deliver objective, data-driven results. We also consider multiple factors before making any recommendations, including the monitor's cost, its performance compared to the competition, and whether it's easy to find.
Test Results
for pictures & test results
for pictures & test results
for pictures & test results
for pictures & test results
for pictures & test results
for pictures & test results
for pictures & test results
for pictures & test results
for videos & test results
for pictures & test results
for pictures & test results
for pictures & test results
