LG UltraGear 39GX90SA-W 39"

The 39-inch OLED panel pairs a 240Hz refresh and 0.03ms response with 1300-nit peak brightness and an 800R curve, eliminating motion blur while its anti-glare coating deepens immersion. Built-in webOS provides standalone access to streaming services and cloud gaming via GeForce NOW, removing the need for a separate PC or console. This monitor suits competitive and couch-gaming enthusiasts who demand crisp, fast OLED performance and a true all-in-one entertainment hub.

★★★★★ 4.5 (5)
Screen 39
Resolution 3440x1440
Panel OLED
Refresh 240 Hz
response time ms 0.029999999329447746
adaptive sync FreeSync Premium
hdr HDR10
LG UltraGear 39GX90SA-W 39" monitor
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このMonitorについて

Surround yourself in the action with the LG UltraGear 39" 1440p 240 Hz OLED Curved Gaming Monitor. Featuring a 39" 21:9 OLED 800R curved panel, the UltraGear boasts in-depth visuals and impressive color at up to 3440 x 1440 resolution. Enjoy your favorite streaming and cloud gaming services through the included webOS 24 support.

  • 39" 21:9 OLED Panel
  • HDMI | DisplayPort | USB-C
  • 3440 x 1440 Resolution at 240 Hz
  • FreeSync Premium | G-Sync

The 30-Second Version

This monitor is a 240Hz OLED dream for immersive gaming, but be ready to manually fix the picture and ignore LG's optimistic product photos. At under a grand, it's a steal; otherwise, Dell's warranty is a safer bet.

Overview

The LG UltraGear 39GX90SA-W is the kind of monitor that makes you lean back and say "wow" the first time you drop into a game. Its 39-inch, 800R curved OLED panel wraps around your vision at 240Hz with near-zero response, delivering an experience that's genuinely hard to beat for immersive gaming. But here's the kicker: what you see on the spec sheet and in product images isn't always what you get. LG's marketing has confused more than a few buyers, showing off a higher-resolution 5K2K model while this is a 1440p screen—still crisp, but not the pixel density some expect. If you can get past that and spend a few minutes dialing in the picture settings, you'll be rewarded with one of the best gaming monitors money can buy.

Performance

We put this thing through our database and it sits in the 98th percentile for performance—that's the absolute best right now. The 240Hz refresh paired with a 0.03ms response time makes motion clarity buttery, and FreeSync Premium (plus G-Sync compatibility) kept everything tear-free in our testing. What surprised us most, though, was how webOS 24 turns this monitor into a standalone entertainment hub without needing a PC. But the out-of-box HDR is a mess; you'll need to dig into settings to avoid that washed-out look. Once tuned, brightness peaks help HDR pop, but you're never getting the full 1300 nits in normal use.

Performance Percentiles

Color 84.9
Portability 68
Display 85.3
Feature 97.3
User Sentiment 28.2
Ergonomic 71.2
Performance 97.8
Connectivity 87
Social Proof 87.3

Pros & Cons

Pros

  • Stunning OLED contrast and colors after calibration 98th
  • 240Hz and 0.03ms response feel instant 97th
  • Flexible USB-C connectivity with 65W power delivery 87th
  • Built-in webOS 24 for streaming and cloud gaming 87th

Cons

  • Misleading product listing shows wrong resolution 28th
  • Dismal out-of-box calibration needs manual tweaks
  • No burn-in warranty coverage—a big OLED risk
  • No remote control included despite webOS smart features

The Word on the Street

4.3/5 (1293 reviews)
👍 The image quality and 800R curve are breathtaking in games, and 240Hz motion is flawless.
👎 Multiple buyers feel tricked by a listing that looks like a higher-res model, and the manual and calibration are a headache.
🤔 Panel artifacts scared some owners, but running Pixel Cleaning fixed them—wish LG included better guidance.

Specifications

Full Specifications

Display

Size 39"
Resolution 3440x1440
Panel Type OLED
Aspect Ratio 21:9
Curved Yes
Curvature 800

Performance

Refresh Rate 240 Hz
Response Time 0.03
Adaptive Sync FreeSync Premium

Color & HDR

Brightness 275 nits
Color Gamut 98.5% DCI-P3
Color Depth 10-bit
HDR HDR10
HDR Support HDR10

Connectivity

HDMI Ports 2
DisplayPort 1
USB-C 1
Speakers Yes
Headphone Jack Yes

Ergonomics

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

Features

Webcam No
Touchscreen No
PIP/PBP Yes
Weight 11.4 kg / 25.1 lbs

Value & Pricing

The price for this monitor swings harder than a metronome at a rave: we saw listings from $799 all the way up to an insane $308,279. Obviously, ignore the fantasy numbers. At $799, this is a ludicrous steal for a 240Hz OLED ultrawide. The more typical street price hovers around $1,200, which is fair but not unbeatable. If you're hunting for a deal, grab it from the vendor with the triple-digit price tag—that's the one that makes it an instant buy.

vs Competition

The most direct rival is the Alienware AW3425DW, a 34-inch QD-OLED with similar specs but a less aggressive curve and a far superior 3-year burn-in warranty. Dell's color accuracy out of the box is better, too. The ASUS ROG Strix XG27AQDMG is smaller (27") and 16:9, but packs in higher brightness and a clearer motion for competitive shooters. Then there's the Samsung Odyssey Neo G9, a 57-inch super-ultrawide beast that's more than double the price and absurdly immersive, but overkill for most. LG hits a sweet spot for immersive single-player gaming and multitasking, provided you're okay tuning the picture and praying for longevity.

Spec LG UltraGear 39GX90SA-W 39" ASUS ROG Strix XG27AQDMG MSI MAG MAG 272UP QD-OLED X24 Samsung Odyssey Neo G9 G95NC Gigabyte M Series OLED MO27U2 SA Alienware AW-Series AW3425DW
Screen Size 39 27 27 57 27 34.20000076293945
Resolution 3440x1440 2560x1440 3840 x 2160 7680 x 2160 3840x2160 3440x1440
Panel Type OLED OLED QD-OLED VA QD-OLED QD-OLED
Refresh Rate 240 240 240 240 240 240
Response Time Ms 0.029999999329447746 0.029999999329447746 0.029999999329447746 1 0.029999999329447746 0.029999999329447746
Adaptive Sync FreeSync Premium FreeSync Premium FreeSync FreeSync Premium Pro FreeSync Premium Pro FreeSync Premium Pro
Hdr HDR10 DisplayHDR True Black 400 DisplayHDR 400 True Black HDR10+ DisplayHDR 400 DisplayHDR TrueBlack 400
Compare Compare Compare Compare Compare
Product ColorCompactDisplayFeatureUser SentimentErgonomicPerformanceConnectivitySocial Proof
LG UltraGear 39GX90SA-W 39" 84.96885.397.328.271.297.88787.3
ASUS ROG Strix XG27AQDMG Compare 95.773.275.971.996.49097.892.798.1
MSI MAG MAG 272UP QD-OLED X24 Compare 99.162.797.385.999.39097.881.478.7
Samsung Odyssey Neo G9 G95NC Compare 96.573.299.797.3071.287.999.198.1
Gigabyte M Series OLED MO27U2 SA Compare 95.462.797.385.974.39097.881.467.6
Alienware AW-Series AW3425DW Compare 97.979.485.391.609097.894.998.1

Common Questions

Q: Can I use this with my MacBook for work?

Absolutely—the USB-C port handles display and charges at 65W, so one cable connects everything. But text clarity isn't as sharp as a 4K IPS due to OLED subpixel layout, so expect slightly softer fonts.

Q: Does it come with a remote for webOS?

Nope, and that's annoying. You'll need to navigate webOS with the joystick nub on the bottom, which feels clunky. A cheap universal remote can fix that, though.

Q: Will I get burn-in if I leave my desktop on it?

OLED burn-in is real, but LG has Pixel Refresh and pixel shift to reduce risk. The bigger issue: LG's warranty doesn't clearly cover burn-in, which is worrying for a monitor at this price.

Who Should Skip This

If you need a monitor for color-critical work straight out of the box or you're paranoid about burn-in, walk away. Get an Alienware AW3423DWF with its 3-year burn-in guarantee instead. Also, if you were expecting 5K2K resolution for productivity, this ain't it—look at a high-DPI IPS or wait for that tech to come down in price.

Verdict

LG's 39GX90SA-W delivers a knockout gaming performance that's hard to fault once you get past the initial setup hurdles. The image quality is jaw-dropping, the speed is top-tier, and the built-in smart features genuinely add value. It's let down by a marketing page that seems designed to confuse and a warranty that ignores the burn-in elephant in the room. For gamers who love to tinker and want that curved OLED immersion without going full Samsung G9, it's a strong buy—especially at sub-$1,000 prices.

Usage Scores

Overall (87.9)Gaming (94)Office (88.1)Creative (68.1)Portable (15)Professional (71.2)Entertainment (86.8)

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