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
What's inside
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.
As an Amazon Associate we earn from qualifying purchases at no extra cost to you. Product prices and availability are accurate as of the date shown and are subject to change.
⚡ Save on Your Next PC — Amazon Prime
Prime members get fast free shipping on the systems above, plus early access to Prime Day & Black Friday PC deals. New members get a 30-day free trial.
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.
