LG UltraGear 39GX90SA-W 39" White 2025
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.
Snapshot
The 30-Second Version
A stunning 240Hz OLED ultrawide with a curve that wraps around your brain. Just double-check the listing before you buy, because some of them are showing the wrong specs.
Pros & Cons
Pros
- 240Hz OLED with 0.03ms response time is absurdly smooth 98th
- 800R curve is deeply immersive for racing and flight sims 97th
- webOS 24 turns it into a standalone streaming and cloud gaming hub 89th
- USB-C, DisplayPort, and dual HDMI cover every device you own 87th
- 1300-nit peak brightness is a real highlight for HDR content
Cons
- Some listings show 5K2K specs while shipping a 1440p panel
- Out-of-box colors look washed out and need manual tweaking
- No burn-in warranty coverage, which is a big miss for OLED
- User sentiment sits in the 28th percentile, which is rough for a premium monitor
What owners think
The Word on the Street
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
- Q1 202695/100
Buyers praise the OLED picture quality, spacious 5K2K resolution, and high refresh rate gaming performance. Minor issues include vertical lines fixed by cleaning and lack of a remote.
- Exceptional 5K2K OLED picture quality with vibrant colors and high brightness.
- High refresh rate provides silky smooth gaming, eliminating stutter and tearing.
- Flexible connectivity via USB-C and DisplayPort works seamlessly with Mac and PC.
- One report of vertical lines resolved by running the built-in image cleaning utility.
- Q4 202543/100
Mixed Q4 2025 reviews: one user finds the display stunning after calibration, another praises gaming but criticizes multitasking, and a third calls the resolution misleading.
- Stunning display after calibration tweaks, immersive 800R curve for gaming.
- Great for gaming, but subpar for productivity and non-gaming use at this price.
- Resolution is misleadingly advertised as 5K, but panel is 3440x1440 (2K).
- Out-of-box calibration is poor, requiring manual adjustments for best image.
- Q3 202552/100
Two verified buyers report a panel defect requiring Pixel Cleaning and a wrong model description. Three promotional reviews praise it for content creation and gaming, calling it a game-changer.
- Panel artifacts out of box, fixable via Pixel Cleaning but unacceptable for premium monitor.
- Product description and images wrong; delivers older 1440p model instead of 5k2k version.
- Excellent for content creation and editing; vibrant colors, curved display, easy setup.
- Replaces dual monitor setup; clean workspace, stunning OLED visuals for gaming and editing.
Based on 10 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
The performance numbers are top of the charts. A 240Hz refresh rate and 0.03ms response time put this in the 98th percentile for performance, which means it's basically as fast as gaming monitors get right now. The 1300-nit peak brightness is a standout for OLED, and the 98.5% DCI-P3 coverage means colors pop after you fix the out-of-box calibration. What surprised us? The built-in webOS 24 actually works well. You can stream Netflix or jump into GeForce NOW without a PC attached. That's a genuinely useful trick for a monitor this size.
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 |
| Power | 67 |
| Weight | 11.4 kg / 25.2 lbs |
vs Competition
Against the ASUS ROG Strix XG27UCDMG and MSI MAG 271QPX QD-OLED E2, the LG wins on sheer immersion. Those are 27-inch 16:9 panels, great for competitive shooters, but they can't touch the 39-inch 21:9 curve for sim racing or open-world games. The Samsung Odyssey G60SD is closer in spirit, but it's still a 16:9 panel. If you want the ultrawide OLED experience, the LG is the one to beat. The Dell UltraSharp U4025QW is the productivity alternative, but it's not a gaming monitor at heart.
| Spec | LG UltraGear 39GX90SA-W 39" | ASUS ROG Strix XG27UCDMG | MSI MAG 271QPX QD-OLED E2 | Samsung Odyssey G60SD | Gigabyte M Series OLED MO27U2 SA | Apple Studio Display XDR |
|---|---|---|---|---|---|---|
| Screen Size | 39 | 27 | 27 | 27 | 27 | 27 |
| Resolution | 3440 x 1440 | 3840 x 2160 | 2560 x 1440 | 2560 x 1440 | 3840 x 2160 | 5120 x 2880 |
| Panel Type | OLED | OLED | QD-OLED | QD-OLED | OLED | Mini-LED |
| Refresh Rate | 240 | 240 | 240 | 360 | 240 | 120 |
| Response Time Ms | 0.029999999329447746 | 0.029999999329447746 | 0.029999999329447746 | 0.029999999329447746 | 0.029999999329447746 | - |
| Adaptive Sync | FreeSync Premium | FreeSync Premium Pro | FreeSync Premium Pro | FreeSync Premium Pro | FreeSync Premium Pro | Adaptive-Sync |
| Hdr | HDR10 | DisplayHDR True Black 400 | DisplayHDR True Black 400 | HDR10+ | DisplayHDR 400 | HDR |
| Compare | Compare | Compare | Compare | Compare |
| Product | Color | Portability | Display | Feature | User Sentiment | Ergonomic | Performance | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| LG UltraGear 39GX90SA-W 39" | 86.1 | 66.5 | 87.3 | 96.9 | 28.1 | 75.6 | 98.3 | 89.4 | 85.2 |
| ASUS ROG Strix XG27UCDMG Compare | 96.5 | 62 | 97.9 | 86.5 | 99 | 91.6 | 98.3 | 84.1 | 99.4 |
| MSI MAG 271QPX QD-OLED E2 Compare | 99.2 | 62 | 79 | 86.5 | 95.4 | 91.6 | 98.3 | 84.1 | 99.4 |
| Samsung Odyssey G60SD Compare | 92.1 | 44.8 | 79 | 72.6 | 95.4 | 91.6 | 99.6 | 89.4 | 95.4 |
| Gigabyte M Series OLED MO27U2 SA Compare | 86.5 | 62 | 97.9 | 86.5 | 92.4 | 91.6 | 98.3 | 84.1 | 70.3 |
| Apple Studio Display XDR Compare | 99.7 | 82.6 | 99.4 | 95.3 | 74.4 | 69.8 | 57.7 | 91.5 | 66.7 |
Price
Value & Pricing
Pricing is all over the place. We're seeing USD 689 to USD 1,600 across five US listings, which is a wild spread. If you can find it near the low end, it's a steal. At the high end, you're paying early-adopter tax for a monitor with a misleading listing problem and no burn-in warranty. Shop around. The best deal we're seeing is on the lower end of that range, so don't pay full retail.
Amazon 1 offer From £1,183
Price History
Read more
Overview
The LG UltraGear 39GX90SA-W is a big, beautiful, and fast ultrawide OLED that pulls you into the game like few monitors can. The one thing to know? That 800R curve is aggressive, and it's the whole point. It wraps around your field of view in a way that makes flat 34-inch ultrawides feel like looking through a window. But there's a catch: some listings are showing specs for a 5K2K model while shipping this 3440 x 1440 panel. That's a real problem, and it's soured what should be a slam-dunk launch.
Common Questions
Q: What streaming services can I use on this monitor?
You get Netflix, Prime Video, Apple TV, Disney+, HBO Max, and over 300 free LG Channels built into webOS 24. Plus cloud gaming via GeForce NOW, Amazon Luna, and Blacknut. No PC required.
Q: Is this monitor wall-mountable?
Yes. It has a standard VESA 100x100 mount, so any compatible wall arm or stand will work. Just keep in mind it's a heavy panel at over 11kg, so get a sturdy mount.
Q: What's the response time?
0.03ms gray-to-gray. That's effectively instant, and combined with 240Hz it's as smooth as gaming monitors get right now.
Who Should Skip This
If you're looking for a 5K2K productivity monitor, this isn't it. Go get the Dell UltraSharp U4025QW instead. And if you're a competitive esports player who wants the absolute fastest 16:9 panel, the ASUS ROG Strix XG27UCDMG or MSI MAG 271QPX QD-OLED E2 will serve you better. This LG is for immersion junkies who want to feel the game wrap around them.
Verdict
The LG UltraGear 39GX90SA-W is a fantastic gaming monitor held back by a confusing product listing and a few OLED-specific worries. If you can find it at a good price and you're okay with tweaking the calibration, it's one of the most immersive gaming displays you can buy right now. Just make sure you're actually getting the 1440p model you're expecting, and maybe budget for a good warranty.
