The LG 27GN800-B is a great gaming monitor from LG's UltraGear lineup. It's very similar to the LG 27GN850-B/27GN880-B with a nearly identical panel but a much cheaper stand, so don't expect much ergonomic adjustability. When it comes to gaming, it delivers exceptionally smooth motion thanks to its fast response time and 144Hz refresh rate. It also has low input lag and variable refresh rate (VRR) support. Like other IPS panels, it has a low contrast ratio that makes blacks look gray in the dark, but on the upside, its viewing angles are wide enough to easily share content on your screen. Glare shouldn't be an issue either since it gets quite bright and has great reflection handling. While it has a wide HDR color gamut and delivers an okay HDR experience, it doesn't get bright enough to make highlights truly pop. On the upside, it has a fantastic color gamut in SDR.
Our Verdict
The LG 27GN800-B is a decent all-around monitor. It delivers exceptionally smooth motion due to its high refresh rate and fast response time. Gamers should also be pleased with its low input lag and VRR support. The size and resolution are well-suited to multitasking and productivity, and it has a wide SDR color gamut and gets bright enough to overcome glare. It's less suited to HDR gaming because of its low contrast ratio and mediocre HDR brightness.
- Exceptionally fast response time.
- Bright enough to fight glare.
- Size and resolution are well-suited for many uses.
- Poor contrast ratio.
- Cheap stand with terrible ergonomics.
The LG 27GN800-B is a decent office monitor. It can overcome glare in bright lighting conditions thanks to its high peak brightness and reflection handling. It's big enough to open windows side-by-side, and its 1440p resolution delivers a crisp image. Unfortunately, it has terrible ergonomics, so you'll need to mount it if you want more adjustability in terms of placement and viewing position.
- Bright enough to fight glare.
- Good size and resolution for multitasking.
- Cheap stand with terrible ergonomics.
The LG 27GN800-B is great for gaming. It has a high refresh rate, exceptionally fast response time, and low input lag. It also supports VRR to reduce screen tearing. Unfortunately, it has a low contrast ratio, so blacks look grayish, and it has terrible ergonomics, so you may have to mount it to get your ideal viewing position.
- Exceptionally fast response time.
- Low input lag.
- Native FreeSync and G-SYNC compatible.
- Poor contrast ratio.
The LG 27GN800-B is decent for multimedia. Its size is large enough to comfortably watch movies or videos, and the 1440p resolution produces a crisp image. It also has great reflection handling and high peak brightness, so glare shouldn't be an issue. Unfortunately, it has a poor contrast ratio that makes blacks look gray. On the upside, its wide viewing angles make it easy to watch with a friend or from an angle.
- Bright enough to fight glare.
- Wide viewing angles.
- Big enough to comfortably watch movies.
- Poor contrast ratio.
The LG 27GN800-B is decent for media creation. It's a good size for multitasking and opening multiple windows, and the 1440p resolution makes for a crisp image. It also has a fantastic SDR color gamut. Unfortunately, it has a low contrast ratio, so blacks look gray, especially in a dark room. It also has terrible ergonomics, so you may have to mount it for an ideal viewing position.
- Bright enough to fight glare.
- Fantastic SDR color gamut.
- Good size and resolution for multitasking.
- Cheap stand with terrible ergonomics.
The LG 27GN800-B is mediocre for HDR. It's mainly limited by its low contrast ratio and low HDR peak brightness, so blacks look gray in the dark, and highlights don't pop against the rest of the image. It doesn't have a local dimming feature to improve the contrast either. While it displays a wide range of colors, it has limited color volume, so colors aren't vivid in HDR.
- Displays wide range of colors.
- Poor contrast ratio.
- Highlights don't pop as they should.
- No local dimming feature.
Changelog
- Updated Oct 27, 2023: Clarified text throughout to reflect changes with Test Bench 1.2, including adding text to the Console Compatibility boxes.
- Updated Apr 14, 2023: Confirmed that 1440p works on this monitor with the PS5.
- Updated Jun 20, 2022: Updated to Test Bench 1.2, resulting in changes to the results and scores with the Response Time and Input Lag. Added tests for Console Compatibility and macOS compatibility and made minor changes to other tests, which you can see in our Changelog.
- Updated Mar 31, 2021: Review published.
Check Price
Differences Between Sizes And Variants
We tested the 27 inch LG 27GN800-B, which is the only size available for this monitor. It's a very similar model to the LG 27GN850-B/27GN880-B except for the stand, which is much cheaper and offers little in the way of ergonomics. There are many models in LG's UltraGear lineup, some of which may be similar to this one.
Our unit was manufactured in November 2020. You can see the label here.
Popular Monitor Comparisons
The LG 27GN800 is a decent overall monitor that delivers great gaming performance. It's among the monitors we've tested with the fastest response times, so motion looks exceptionally clear. However, the stand is much worse than other gaming monitors, although that may not be an issue if you plan on VESA-mounting it.
For more options, see our recommendations for the best gaming monitors, the best 1440p gaming monitors, and the best 144Hz monitors.
The LG 27GN850-B/27GN880-B and the LG 27GN800-B are very similar monitors. They use an almost identical panel, but the 27GN800-B has a much simpler stand with practically no adjustment options. Unless the stand is a dealbreaker, the 27GN800-B may actually be the better choice. While most casual gamers may not notice, the 27GN800-B has a slightly faster response time and a lower 60Hz input lag. These are minor differences, but if you're going to mount your monitor, the 27GN800-B may represent a better value.
The LG 27GL850-B/27GL83A-B and the LG 27GN800-B perform quite similarly overall. While the 27GN800-B has a slightly faster response time, it also has a terrible stand with very few adjustment options. That may not be a problem if you plan on VESA-mounting it, however. The 27GL850-B, on the other hand, includes two USB 3.0 ports, offering more connectivity than the 27GN800-B, if that's important to you.
The LG 27GP850-B/27GP83B-B is much better than the LG 27GN800-B. The 27GP850-B has much better ergonomics, a faster refresh rate, and it's brighter in HDR. The 27GP850-B also has better text clarity and better connectivity, as it has a built-in USB hub.
The LG 27GN800-B and the Samsung Odyssey G55C S27CG55 are both entry-level 1440p gaming monitors, but they have a few differences. Despite having a lower refresh rate than the Samsung monitor, the LG has a faster response time, which is great for playing games with fast-moving objects. The LG also has wider viewing angles, making it ideal for sharing your screen with friends. However, the Samsung monitor has a different panel type with a higher contrast ratio, which is great if you want to watch content or play games in dark rooms.
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 videos & 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
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
