Key takeaways
- Fast 240Hz with OLED’s near-instant 0.03ms response and superb motion clarity
- Perfect blacks and infinite contrast with DisplayHDR True Black 400
- 1440p resolution is easy to drive for sustained high frame rates
- Full ergonomic stand with tilt, height, swivel, and pivot
What's inside
The LG 27GX704A-B is a 27-inch UltraGear QHD (2560×1440) OLED gaming monitor running at 240Hz with a 0.03ms response time, G-Sync compatibility, and FreeSync Premium Pro. It targets the classic competitive sweet spot: 1440p resolution paired with OLED speed and contrast.
This monitor is for gamers who prioritize fast, clean motion and inky OLED blacks over sheer pixel count, and who run a GPU that pushes high frame rates at 1440p rather than 4K. It is an excellent fit for esports and fast single-player titles alike, and its 27-inch QHD panel is easy to drive, making it more accessible than 4K OLED options that demand top-tier hardware.
As an Amazon Associate we earn from qualifying purchases.
⚡ 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 styling restrained: a slim OLED panel, thin bezels, and a functional stand offering tilt, height, swivel, and pivot. The build is solid without being flashy, with subtle rear accents rather than aggressive gamer aesthetics. The panel uses LG’s OLED technology with a coating that balances glare control against contrast, and the monitor includes standard OLED protection features to guard against image retention over time.
Performance
At 1440p and 240Hz this display is fast and fluid, with the near-instant pixel response OLED is famous for eliminating the smearing you see on many LCDs. Blacks are perfect, contrast is effectively infinite, and HDR content carries real impact thanks to VESA DisplayHDR True Black 400 certification. The QHD resolution keeps frame rates high, so mid-to-high-end GPUs can actually sustain the refresh rate the panel is capable of.
As with all OLEDs, the caveats are brightness and text. Full-screen brightness is good for a gaming room but not exceptional, and the RGB subpixel structure can make small text look slightly soft compared with an IPS LCD. For gaming these are minor; for all-day office work they are worth noting.
Pros & Cons
- Fast 240Hz with OLED’s near-instant 0.03ms response and superb motion clarity
- Perfect blacks and infinite contrast with DisplayHDR True Black 400
- 1440p resolution is easy to drive for sustained high frame rates
- Full ergonomic stand with tilt, height, swivel, and pivot
- Peak brightness trails LCD and mini-LED competitors
- Text clarity is slightly soft for heavy desktop use
- Standard OLED burn-in caution applies to static UI elements
Alternatives to Consider
If you want more speed for pure esports, the LG 27GX790A-B pushes the same 27-inch QHD OLED to a blistering 480Hz. Gamers craving higher resolution should look at the LG 32GX850A-B, a 32-inch 4K OLED with a dual-mode switch between 165Hz at 4K and 330Hz at 1080p. And for the ultimate immersive setup, the LG 45GX950A-B is a 45-inch 5K2K curved ultrawide OLED that trades the compact form factor for sheer scale.
Frequently Asked Questions
Is 1440p the right resolution for this size?
Yes. At 27 inches, QHD offers a sharp image while keeping frame rates high, which is why it remains the favorite resolution for competitive OLED gaming monitors.
How does it handle HDR?
With DisplayHDR True Black 400 and OLED’s perfect blacks, HDR contrast is excellent. Peak highlight brightness is modest, but the true-black performance makes HDR content look richer than most LCDs.
Is burn-in a real risk?
For mixed gaming and media use with LG’s built-in protection features enabled, the risk is low. Users who leave static taskbars or HUDs on screen for hours daily should stay mindful.
What GPU pairs well with it?
Because it is 1440p, a solid mid-to-high-end GPU can drive high frame rates without upscaling, making it far easier to feed than a 4K OLED at similar refresh rates.
Verdict
The LG 27GX704A-B is a superb 1440p OLED gaming monitor that nails the balance between speed, image quality, and hardware demands. Brightness and text sharpness are the usual OLED compromises, but the fast, clean 240Hz motion and flawless contrast make it one of the most well-rounded competitive displays at its size.
