Price drop 17%

LG UltraGear 27GN800-B 27" Black 2021

★★★★☆ 4.1 (28)

The 27-inch QHD IPS panel with 1ms response time, 144Hz refresh rate, and G-Sync Compatible/FreeSync Premium support ensures sharp, tear-free motion. Its 99% sRGB color gamut and HDR10 improve visual accuracy, while the virtually borderless design reduces distractions. This monitor suits desktop gamers who prioritize responsive 1440p gameplay over portability or advanced stand adjustments.

Screen 27"
Resolution 2560 x 1440
Panel IPS
Refresh 144 Hz
response time ms 1
adaptive sync G-Sync Compatible
HDR HDR10
LG UltraGear 27GN800-B 27" Black 2021 monitor
71 Overall Score
Also available in:

Snapshot

The 30-Second Version

The 27GN800-B delivers 99% sRGB color accuracy at the 90th percentile, paired with a 144Hz refresh rate and 1ms response time. That's a killer combo for the USD 380 low-end price. But the 3.9/5 customer rating and polarizing anti-glare finish mean it's not a slam dunk for everyone.

Pros & Cons

Pros

  • 99% sRGB coverage, 90th percentile for color accuracy 86th
  • 144Hz refresh rate with 1ms response time 79th
  • Both G-Sync and FreeSync Premium support 73rd
  • 27-inch QHD IPS panel with 10-bit color depth 71st
  • VESA mount compatibility for better stands

Cons

  • 3.9/5 customer rating, 35th percentile social proof
  • 350 nits brightness makes HDR10 mostly cosmetic
  • Anti-glare coating is polarizing, some find it sparkly
  • Only 2 HDMI ports and 1 DisplayPort
  • 45W power draw is higher than comparable panels

What owners think

The Word on the Street

4.1/5 (28 reviews)
👍 Multiple buyers upgrading from older curved panels report being surprised by the jump in color quality and uniformity, with no dead pixels on their units.
👎 A recurring complaint centers on the anti-glare coating, with at least one owner describing it as sparkly and nauseating to look at.
🤔 Several reviewers note the stand lacks height adjustment, though they acknowledge VESA compatibility provides a workaround.

How owner sentiment changed over time

Exclusive

Based on when customers actually wrote their reviews - so you can see whether early praise held up.

Owner sentiment has held steady over time
1★2★3★4★5★Q1 '21: 3.3★ · 3 reviewsQ3 '21: 1.0★ · 1 reviewQ3 '22: 3.5★ · 2 reviews312Q1 '21Q3 '21Q3 '22
Avg ratingHappy (4-5★)Unhappy (1-2★)Bar height = number of reviews

Based on 6 dated customer reviews, grouped by calendar quarter. Period analysis is in English.

The proof

Performance

The 27GN800-B runs at 2560 x 1440 with a 144Hz refresh rate and a 1ms GtG response time. That's the sweet spot for competitive gaming without needing an RTX 4090 to push frames. The 75th percentile performance ranking puts it above average, but it's not going to hang with the 240Hz and 360Hz panels out there. For most people, 144Hz at QHD is where the price-to-smoothness ratio peaks.

G-Sync compatibility plus FreeSync Premium means you're covered whether you're on team green or team red. The 10-bit color (8-bit + FRC) and HDR10 support sound nice on paper, but at 350 nits brightness, HDR is more of a checkbox than a feature. You'll get a slight boost in color depth, but don't expect OLED-level contrast or eye-searing highlights. The IPS panel delivers solid viewing angles and that 90th percentile color accuracy, which is the real performance win here.

Performance Percentiles

Color 86.3
Portability 35.8
Display 70.5
Feature 67.8
Ergonomic 78.8
Performance 72.7
Connectivity 62.9
Social Proof 53.3

Specifications

Full Specifications

Display

Size 27"
Resolution 2560x1440 (QHD)
Panel Type IPS
Aspect Ratio 16:9
Curved No
Screen Finish matte

Performance

Refresh Rate 144 Hz
Response Time 1
Adaptive Sync G-Sync Compatible

Color & HDR

Brightness 350 nits
Color Gamut sRGB 99%
Color Depth 10-bit (8-bit + FRC)
HDR HDR10
HDR Support HDR10

Connectivity

HDMI Ports 2
DisplayPort 1
Speakers Yes
Headphone Jack Yes

Ergonomics

Height Adjustable Yes
Tilt Yes
Swivel No
Pivot Yes
VESA Mount 100x100

Features

Power 45
Weight 6.0 kg / 13.2 lbs

vs Competition

Stacked against the competition, the 27GN800-B is fighting an uphill battle. The ASUS ROG Strix XG27UCDMG and MSI MAG 271QPX QD-OLED E2 both bring OLED panels with dramatically better contrast and HDR performance, though they'll cost you significantly more. The Samsung Odyssey G60SD offers similar specs with a more refined anti-glare treatment that doesn't sparkle like some users report here. The Gigabyte MO27U2 and Alienware AW2725D push higher refresh rates for competitive players. Where the LG wins is color accuracy per dollar, that 90th percentile sRGB coverage at the USD 380 price point is genuinely hard to beat. But if HDR matters to you, any OLED competitor will embarrass this panel.

Spec LG UltraGear 27GN800-B 27" ASUS ROG Strix XG27UCDMG MSI MAG 271QPX QD-OLED E2 Alienware AW-Series AW3425DW Samsung Odyssey G60SD Gigabyte M Series OLED MO27U2 SA
Screen Size 27 27 27 34 27 27
Resolution 2560 x 1440 3840 x 2160 2560 x 1440 3440 x 1440 2560 x 1440 3840 x 2160
Panel Type IPS OLED QD-OLED QD-OLED OLED QD-OLED
Refresh Rate 144 240 240 240 360 240
Response Time Ms 1 0.029999999329447746 0.029999999329447746 0.029999999329447746 0.029999999329447746 0.029999999329447746
Adaptive Sync G-Sync Compatible FreeSync Premium Pro FreeSync Premium Pro FreeSync Premium Pro FreeSync Premium Pro FreeSync Premium Pro
Hdr HDR10 DisplayHDR True Black 400 DisplayHDR True Black 400 DisplayHDR 400 True Black HDR10+ DisplayHDR 400
Compare Compare Compare Compare Compare
Product ColorPortabilityDisplayFeatureErgonomicPerformanceConnectivitySocial Proof
LG UltraGear 27GN800-B 27" 86.335.870.567.878.872.762.953.3
ASUS ROG Strix XG27UCDMG Compare 96.157.897.98490.89881.499.3
MSI MAG 271QPX QD-OLED E2 Compare 99.157.877.48490.89881.499.3
Alienware AW-Series AW3425DW Compare 9973.985.889.990.89895.498
Samsung Odyssey G60SD Compare 90.44077.467.890.899.587.794.7
Gigabyte M Series OLED MO27U2 SA Compare 8457.897.98490.89881.466.8

Price

Value & Pricing

Pricing is all over the place depending on where you shop. In the US, you'll find it anywhere from USD 380 to USD 540 across three listings, a USD 160 spread that's worth paying attention to. The cheapest US listing is the obvious move if you're stateside. Canadian buyers face a similar situation with prices ranging from CAD 562 to CAD 704. At the low end, this monitor is a solid deal for a 1440p 144Hz IPS panel with this color performance. At the high end, you're creeping into territory where better options start appearing. Shop around before you commit.

From $316 1 offer across 1 retailer
Amazon 1 offer From $316

Price History

$200 $300 $400 $500 $600 May 11Jun 27Nov 1 $316

Read more

Overview

The LG UltraGear 27GN800-B hits 144Hz at 1440p on an IPS panel, and that combo lands it in the 75th percentile for performance in our database. Color accuracy is the real story here, 99% sRGB coverage puts it at the 90th percentile, which is frankly better than a lot of monitors twice the price. You're getting a 27-inch QHD panel with a 1ms response time and both G-Sync and FreeSync Premium support for smooth frames without tearing.

But the customer rating tells a different story. 3.9 out of 5 across 17 reviews isn't terrible, but it's not glowing either. The social proof sits at the 35th percentile, meaning buyers aren't exactly shouting from the rooftops about this one. Some love the panel quality and color depth, while others can't stand the anti-glare coating. It's a monitor with a great spec sheet and a polarizing real-world experience.

Common Questions

Q: Is the HDR on this monitor actually good?

Not really. The 27GN800-B supports HDR10 but only hits 350 nits peak brightness. That's well below the 600-1000 nits you'd want for meaningful HDR. It'll accept an HDR signal and look slightly different, but it's not going to deliver the contrast or brightness that makes HDR worth using.

Q: Does this monitor work with both NVIDIA and AMD graphics cards?

Yes. It's G-Sync Compatible and supports AMD FreeSync Premium, so adaptive sync works with both NVIDIA and AMD GPUs. That's a nice flexibility advantage over monitors locked to one ecosystem.

Q: How does the color accuracy compare to other gaming monitors?

It's genuinely impressive. The 99% sRGB coverage puts it at the 90th percentile in our database, meaning it outperforms 90% of comparable monitors for color. The 10-bit depth (8-bit + FRC) helps with gradients too. For a gaming monitor at this price, that's standout color performance.

Who Should Skip This

If you're sensitive to screen coatings, skip this one. The anti-glare finish has drawn strong negative reactions from some owners who describe it as sparkly and uncomfortable to look at. HDR enthusiasts should also look elsewhere, 350 nits won't cut it. And if you're a competitive esports player chasing every frame, the 144Hz cap and 75th percentile performance ranking mean faster panels exist. The 35th percentile social proof suggests this monitor hasn't built the reputation that some competitors enjoy.

Verdict

The LG UltraGear 27GN800-B is a color-accurate 1440p gaming monitor that nails the fundamentals at a reasonable price. The 90th percentile color performance and 144Hz refresh rate make it a strong choice for gamers who also do creative work. But the 3.9/5 customer rating and complaints about the anti-glare coating suggest you should try to see one in person before buying. If you can snag it at the USD 380 end of the price range, it's a solid value. At USD 540, you're paying too much for a monitor with this many compromises.

Usage Scores

Overall (70.5)Gaming (66.7)Office (68.2)Creative (70.5)Portable (9.2)Professional (70.1)Entertainment (59.6)
  • Overall70.5
  • Gaming66.7
  • Office68.2
  • Creative70.5
  • Portable9.2
  • Professional70.1
  • Entertainment59.6

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