Key takeaways
- Superb OLED motion clarity at 240Hz with 0.03ms response
- Deep blacks and vivid contrast from the per-pixel OLED panel
- Sharp 1440p density that doesn’t require a top-tier GPU
- Fully adjustable stand and clean, glare-controlling design
The LG 27GX704A-B UltraGear OLED is a 27-inch QHD (2560×1440) OLED gaming monitor running at 240Hz with a 0.03ms response time, G-Sync compatibility, and VESA DisplayHDR True Black 400. It targets competitive and immersive gamers who want OLED motion clarity and contrast at a 27-inch size and a price that undercuts the flashier 4K OLED panels.
This monitor is a strong fit for the high-refresh 1440p gamer who prioritizes fast, clean motion and deep blacks over outright resolution. Players who want 4K sharpness or a large ultrawide canvas will find better matches elsewhere in LG’s range.
Our top picks
LG 27GX704A-B 27-inch Ultragear QHD- LG UltraGear OLED Goes Glossy - Experience ultra-smooth,…
- Next-Level OLED Brightness, for Next-Level Play - The…
- VESA DisplayHDR True Black 400 - An OLED…
LG 45GX950A-B 45-inch Ultragear 5K2K WUHD- World's First 5K2K OLED Gaming Monitor - Gaming…
- Sharp Text Clarity with Reduced Color Fringe -…
- Bright 45" OLED Picture: Up to 1300 nits…
LG 32GX850A-B 32" UltraGear 4K UHD- 32" 4K UHD Glossy OLED Display - Experience…
- Bright OLED Gaming - This UltraGear features Micro…
- VESA DisplayHDR True Black 400 & 1.5M:1 Contrast…
| Product | Key specs | |
|---|---|---|
| LG 27GX704A-B 27-inch Ultragear QHD | LG UltraGear OLED Goes Glossy - Experience ultra-smooth,… Next-Level OLED Brightness, for Next-Level Play - The… VESA DisplayHDR True Black 400 - An OLED… | Check price |
| LG 45GX950A-B 45-inch Ultragear 5K2K WUHD | World's First 5K2K OLED Gaming Monitor - Gaming… Sharp Text Clarity with Reduced Color Fringe -… Bright 45" OLED Picture: Up to 1300 nits… | Check price |
| LG 32GX850A-B 32" UltraGear 4K UHD | 32" 4K UHD Glossy OLED Display - Experience… Bright OLED Gaming - This UltraGear features Micro… VESA DisplayHDR True Black 400 & 1.5M:1 Contrast… | Check price |
 LG 27GX790A-B 27-inch Ultragear OLED Gaming Monitor | Check price | |
 LG 27GS93QE 27-inch Ultragear OLED Gaming Monitor | 240Hz Refresh Rate - Gear up for smooth… VESA DisplayHDR True Black 400 & 1.5M:1 contrast… SYNC Compatible and AMD FreeSync Premium Pro -… | Check price |
 LG 45GX900A-B 45-Inch Ultragear WQHD | The 240Hz OLED gaming monitor that’s Ahead of… Up to 240Hz & 0.03ms Ultimate Frame Sync: FreeSync Premium Pro & G-SYNC… | Check price |
 LG 32GX870A-B 32-inch Ultragear 4K UHD | Dual Mode: 4K UHD 240Hz or Full HD… Leave Lag Behind with 0.03ms Response Time -… SYNC Compatible and AMD FreeSync Premium Pro -… | Check price |
 LG 39GX950B-B 39-inch Ultragear evo 5K2K WUHD | The World’s First 39" 5K2K OLED Gaming Monitor… AI Upscaling to 5K2K—No GPU Upgrade Required -… Next-Gen Brilliance with 4th Gen RGB Tandem OLED… | Check price |
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Watch: LG UltraGear OLED Review — Video Review
Design & Build
LG keeps the UltraGear design clean and functional, with slim bezels, a sturdy stand offering tilt, height, swivel, and pivot adjustment, and a matte OLED coating that controls reflections well. The build is solid without being ostentatious, and the rear styling is understated compared with the more RGB-heavy competition. The stand is practical rather than premium-feeling, but it does the job and frees up desk space.
Performance
The combination of an OLED panel, 240Hz refresh, and 0.03ms response makes motion exceptionally crisp, giving fast-paced games a clarity that LCDs struggle to match, while the per-pixel contrast delivers the deep blacks and vibrant highlights OLED is prized for. At 1440p on a 27-inch panel the pixel density is sharp enough for detailed visuals without demanding the extreme GPU horsepower a 4K OLED requires.
As with any OLED, brightness is the compromise: full-screen brightness is modest, so a very bright room will dull the HDR impact, and long-term burn-in remains a consideration despite LG’s care features. For a dim-to-moderate gaming space, though, the picture and motion quality are outstanding for the price.
Pros & Cons
- Superb OLED motion clarity at 240Hz with 0.03ms response
- Deep blacks and vivid contrast from the per-pixel OLED panel
- Sharp 1440p density that doesn’t require a top-tier GPU
- Fully adjustable stand and clean, glare-controlling design
- Limited full-screen brightness in bright rooms
- Long-term burn-in risk inherent to OLED panels
- QHD resolution is a step below 4K OLED options
Alternatives to Consider
If you want even faster motion, the LG 27GX790A-B pushes to a 480Hz QHD OLED panel, while the LG 32GX850A-B steps up to a 4K dual-mode display for those who want higher resolution. Gamers craving an immersive curved canvas should consider the ultrawide LG 45GX900A-B instead.
Frequently Asked Questions
Is 240Hz overkill for 1440p gaming?
Not for competitive or fast-paced games, where the higher refresh delivers visibly smoother motion; a mid-to-high-end GPU can drive many titles near that frame rate at 1440p.
How does OLED handle burn-in on this monitor?
LG includes pixel-shifting and cleaning routines to reduce burn-in risk, and with varied gaming and desktop use the danger is low, though static elements over many hours remain a concern.
Is 27 inches too small for an OLED gaming monitor?
27 inches at 1440p offers a sharp, focused image many competitive players prefer; those wanting a more cinematic feel may favor a larger 32-inch or ultrawide panel.
Is this monitor bright enough for HDR?
It hits DisplayHDR True Black 400, which produces excellent contrast and highlight pop in darker scenes, but full-screen brightness is lower than mini-LED HDR displays.
Verdict
The LG 27GX704A-B UltraGear OLED is an excellent-value entry into OLED gaming, pairing fast 240Hz motion and rich contrast at a sensible 1440p resolution; accept the usual OLED brightness and burn-in caveats and it is one of the most enjoyable 27-inch gaming monitors at its price.
