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.
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.
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
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 | Color | Compact | Display | Feature | User Sentiment | Ergonomic | Performance | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| LG UltraGear 39GX90SA-W 39" | 84.9 | 68 | 85.3 | 97.3 | 28.2 | 71.2 | 97.8 | 87 | 87.3 |
| ASUS ROG Strix XG27AQDMG Compare | 95.7 | 73.2 | 75.9 | 71.9 | 96.4 | 90 | 97.8 | 92.7 | 98.1 |
| MSI MAG MAG 272UP QD-OLED X24 Compare | 99.1 | 62.7 | 97.3 | 85.9 | 99.3 | 90 | 97.8 | 81.4 | 78.7 |
| Samsung Odyssey Neo G9 G95NC Compare | 96.5 | 73.2 | 99.7 | 97.3 | 0 | 71.2 | 87.9 | 99.1 | 98.1 |
| Gigabyte M Series OLED MO27U2 SA Compare | 95.4 | 62.7 | 97.3 | 85.9 | 74.3 | 90 | 97.8 | 81.4 | 67.6 |
| Alienware AW-Series AW3425DW Compare | 97.9 | 79.4 | 85.3 | 91.6 | 0 | 90 | 97.8 | 94.9 | 98.1 |
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.