LG 27GX704A-B 27 in Ultragear QHD OLED Gaming Monitor - Fast 240Hz

Our review of the LG 27GX704A-B finds a monitor built for competitive players and visually demanding users who need both speed and picture quality. The single biggest reason to buy is the combination of a glossy 27 in QHD OLED panel with an ultra-fast 240Hz refresh rate and a near-instantaneous 0.03ms response time, which together deliver tear-free, ultra-smooth gameplay and exceptionally clear motion. For gamers who prioritize low latency, deep blacks and vivid color at QHD resolution, this monitor stands out as a focused performance option.

Key Features

• 240Hz Refresh Rate: Keeps fast-paced games fluid and reduces motion judder so players can track targets and react faster.
• 0.03ms Response Time: Minimizes ghosting and motion blur for crisp, readable visuals during high-speed action.
• QHD OLED Panel: Delivers sharp 2560 x 1440 detail and exceptional contrast so dark scenes preserve shadow detail while highlights remain punchy.
• VESA DisplayHDR True Black 400: Produces deeper blacks and brighter highlights for more cinematic contrast and improved visibility in mixed lighting.
• Console and PC Connectivity: Dual HDMI 2.1, DisplayPort 1.4, and USB 3.2 ports support next-gen consoles and modern PC setups without compromise.
• Eye Comfort Certifications: Triple UL certifications for Anti-Glare, Flicker-Free, and Low Blue Light help reduce eye strain during long sessions.

Who It's For

The LG 27GX704A-B is aimed at competitive and enthusiast gamers who want a compact 27 in OLED with high refresh and extremely low response for esports-level performance and console play. Content creators who also value deep blacks and wide color coverage will appreciate the panel's up to 98.5% DCI-P3 coverage for vivid, accurate color in a desktop-friendly QHD size.

It is less suitable for users who need the brightest SDR panel all day in direct sunlight or those who require a multi-monitor office workstation where long static-image retention is a primary concern; buyers should also be aware that some users report mixed results with everyday functionality depending on platform and settings.

Pros & Cons

Pros

• Outstanding contrast and color thanks to the OLED panel and VESA DisplayHDR True Black 400 certification.
• Extremely low 0.03ms response and 240Hz refresh deliver very smooth, competitive gameplay.
• Modern connectivity with HDMI 2.1, DP 1.4 and USB 3.2 keeps the monitor future-ready for consoles and PCs.
• Triple UL certifications improve visual comfort for extended sessions.

Cons

• Glossy finish and OLED characteristics can require attention to image retention protection settings for long static use.
• Some users report mixed day-to-day functionality depending on their platform or setup, so firmware and driver compatibility may need work.

Specifications

Screen Size	27 in
Resolution	QHD 2560 x 1440
Panel Type	OLED (glossy)
Refresh Rate	Up to 240Hz
Response Time	0.03ms (GtG)
HDR	VESA DisplayHDR True Black 400
Connectivity	2x HDMI 2.1, DisplayPort 1.4, USB 3.2 upstream + 2x downstream

Our Verdict

The LG 27GX704A-B is a compact QHD OLED that blends competitive speed with striking picture quality, making it a smart buy for serious gamers and creators who want deep blacks, vivid color and ultra-low latency. While users should mind OLED care features and verify platform compatibility, the monitor offers strong value for its class thanks to its modern I/O, eye comfort certifications, and class-leading motion performance.

Frequently Asked Questions

Does this monitor work with next-gen consoles?
Yes. Dual HDMI 2.1 ports allow full use of high frame rates and variable refresh features on supported consoles.

Is burn-in a concern with this OLED?
LG includes OLED protection features and automatic pixel care cycles to mitigate image retention, but users should enable those and follow best practices for static content.

Will it run 240Hz on PC?
Yes. With a compatible GPU and DisplayPort 1.4 or HDMI 2.1 connection, the panel supports up to 240Hz for fast gaming.