LG · MPN: 39GX900A-B.AEK
£1,233.99
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Key specs

  • Response time0.03 ms
  • Panel typeWOLED
  • Display resolution3440 x 1440 pixels
All specifications

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Price drop alert

LG 39" UltraWide QHD 240Hz OLED Monitor (39GX900A-B)
Now £1,233.99

We'll email you if the price of this item drops in the next 90 days.

Overview

  • 39-inch WQHD (3440x1440) OLED display
  • The 21:9 UltraWide sweet spot for gaming
  • 240Hz refresh rate/ 0.03ms (GtG) response time
  • DisplayHDR True Black 400 / DCI-P3 98.5%
  • NVIDIA® G-SYNC® Compatible / VESA Certified AdaptiveSync / AMD FreeSync™ Premium Pro
  • Clutter-free, L-stand sleek design

UltraWide view with deep black OLED
The 39-inch WQHD (3440x1440) display offers a 34% wider view than standard 16:9 screens, delivering sharp and clear visuals across the expansive display. This WQHD OLED represents boldly darker shadows, brighter lights, and vibrant colors for gameplay in any environment.

Brightest OLED
Experience stunning visuals with LG WOLED. Built on LG's OLED leadership and featuring Micro Lens Array+ (MLA+) technology, it delivers up to 37.5% brighter SDR, optimizing light efficiency and minimizing loss. It represents a standard luminosity of 275 nits (APL 100%) and a peak brightness of 1300 nits (APL 1.5%), ensuring vivid, true-to-life colors for immersive, precise gaming even in bright environments.

Go wide. Not short.
The 21:9 UltraWide sweet spot for gaming
The 21:9 curved OLED monitor provides an immersive and captivating experience for both gaming and various entertainment content, thanks to its balanced and optimized aspect ratio.

The ideal curvature 800R
Immerse in the 800R curve for a consistent FOV (Field of View) on a desk designed to match natural sight, placing you at the core of its curvature. With a consistent 90-degree viewing angle across the entire screen, it delivers vivid, distortion-free graphics as you explore the gaming universe.

Deeper black,
realistic color

Experience unparalleled depth and vibrant realism with VESA DisplayHDR true black 400, delivering detailed black expression even in the darkest scenes. With a 1.5M contrast ratio, DCI-P3 98.5% (typical) color gamut ensures that colors are displayed with realistic detail, just as originally intended.

Advanced eye comfort technologies
by three UL verifications

Featuring an anti-glare finish, LG WOLED’s advanced eye comfort technologies minimize frustrating reflections and keep your eyes comfortable, delivering crystal-clear gaming performance with consistent clarity. With UL verifications in key areas—limiting harmful blue light exposure and preventing distractions from flickering lights—these technologies promote visual comfort and contribute to a smoother gaming experience, whether you’re gaming in bright environments or LED-lit rooms.

0.03ms (GtG) speed,
240Hz smooth gameplay

To bring you a swift 0.03ms (GtG) response and a rapid 240Hz refresh rate, reducing reverse ghosting for crystal-clear, fluid visuals. Dive into more immersive gameplay with every frame.

All-in-One USB-C for responsive gaming
Connect your laptop to the monitor with a USB-C cable for up to 65W power delivery, eliminating the need for a separate adapter. Enjoy WQHD resolution and a 240Hz refresh rate via DP 1.4 or HDMI 2.1, ensuring your gaming remains uninterrupted.

Smooth motion, infinite play
Our monitor certified with ClearMR 13000, exceeding VESA testing with a Clear Motion Ratio of over 12500. It brings to captures the subtle blurring that occurs around the edges of moving objects, display fast-moving action with fine details.

Advanced gaming features
•Low Latency reduces input lag for real-time response.
•Black Stabilizer brightens dark scenes, helping gamers spot enemies and details.
•Crosshair enhances precision for deadly accuracy.
•FPS Counter shows your real-time frame rate.

Plunge into the world of PC and console gaming!
LG UltraGear™ monitors deliver smooth, responsive gameplay for both PC and console, whether you're diving into fast-paced action or exploring vast open worlds. With HDMI 2.1 support, they offer flexible compatibility—from keyboard and mouse to joystick—along with fluid motion, low latency, and vibrant details for an optimized gaming experience across various genres and platforms.

Plugin for immersive sound effect
Enjoy gaming with seamless voice chat via the 4-pole headphone out. Get fully immersed with the virtual 3D sound powered by DTS Headphone:X, while the built-in 7W x2 speakers with Depth-Sound technology deliver a powerful, dynamic audio experience.

Seamless gameplay powered by LG Switch
The LG Switch app optimizes your monitor for both gaming and everyday life. Effortlessly customize your preferred image quality and brightness, then apply your settings instantly with a hotkey. Plus, you can split the display into 11 options and quickly launch your video call platform, making it even more convenient.

Protecting OLED via On-Screen Display
Through On-Screen Display, you adjust OLED brightness and enable protection settings to prevent afterimages or burn-in, allowing you to enjoy superior OLED picture quality for longer. Plus, gamers can also easily customize their gaming setup for optimal performance.

Clutter-free, sleek design
The clutter-free L-stand and sleek design are crafted to save desk space and minimize dead zones, making your setup clean and efficient. Experience hexagon lighting and a virtually borderless 4-sided design, paired with a fully adjustable base for swivel, tilt, and height adjustments.

Specifications

Display

DCI-P3 coverage98.5%
Colour gamut standardDCI-P3
High Dynamic Range (HDR) technologyDisplayHDR 400 True Black, HDR Effect, High Dynamic Range 10 (HDR10)
High Dynamic Range (HDR) supportedYes
Display diagonal (metric)99.1 cm
Pixel pitch0.266 x 0.266 mm
Display number of colours1.07 billion colours
Viewing angle, vertical178°
Viewing angle, horizontal178°
Maximum refresh rate240 Hz
Contrast ratio (typical)1500000:1
Screen curvature rating800R
Screen shapeCurved
Anti-glare screenYes
Response time measurement typeGTG (Gray to Gray)
Response time0.03 ms
Display brightness (typical)275 cd/m²
Display brightness (peak)1300 cd/m²
Panel typeWOLED
HD typeWide Quad HD
TouchscreenNo
Display technologyOLED
Native aspect ratio21:9
Display resolution3440 x 1440 pixels
Display diagonal99.1 cm (39")

Performance

Smart modesEnergy saving
Game modeYes
Game featuresRefresh Rate Optimizer
Low Blue Light technologyYes
Flicker-free technologyYes
VESA Adaptive Sync supportYes
AMD FreeSync typeFreeSync Premium Pro
NVIDIA G-SYNC typeG-SYNC Compatible
AMD FreeSyncYes
NVIDIA G-SYNCYes
Show all 88 specificationsShow fewer specifications

Multimedia

Built-in cameraNo
RMS rated power7 W
Number of speakers2
Built-in speaker(s)Yes

Design

Product colourBlack
Market positioningGaming

Ports & interfaces

HDCP version2.3
HDCPYes
Headphone outYes
DisplayPort version1.4
DisplayPorts quantity1
HDMI version2.1
HDMI ports quantity2
HDMIYes
USB Power Delivery up to65 W
USB Power Delivery (USB PD)Yes
USB Type-C DisplayPort Alternate ModeYes
USB Type-C downstream ports quantity1
USB Type-A downstream ports quantity2
Built-in USB hubYes

Ergonomics

Picture-in-PictureYes
Tilt adjustmentYes
SwivellingYes
Height adjustmentYes
Cable managementYes
Wall mountableYes
Panel mounting interface100 x 100 mm
VESA mountingYes

Power

Power supply typeExternal
AC input frequency50/60 Hz
AC input voltage100 - 240 V
Power consumption (off)0.3 W
Power consumption (standby)0.5 W
Power consumption (typical)41 W
Energy consumption (HDR) per 1000 hours41 kWh
Energy consumption (SDR) per 1000 hours38 kWh
Energy efficiency class (HDR)G
Energy efficiency class (SDR)F

Weight & dimensions

Weight (without stand)7.3 kg
Height (without stand)404.4 mm
Depth (without stand)198 mm
Width (without stand)887.8 mm
Weight (with stand)11.4 kg
Height (with stand)605.7 mm
Depth (with stand)322.8 mm
Width (with stand)887.8 mm

Packaging content

Cables includedAC, DisplayPort, HDMI, USB Type-C
Stand includedYes

Other features

Warranty period2 year(s)
Hardware calibrationYes
FPS counterYes
Brand specific technologiesBlack Stabilizer, DAS Mode, Eye care
Country of originChina

Manuals & downloads

Delivery & returns

Delivery

  • FREE standard delivery on orders over £50, otherwise £4.95 (3–5 working days).
  • Express delivery £9.99 (1–3 working days) on selected products, UK mainland.
  • PlayStation and Arozzi products use a 5–7 working-day service.
  • Orders are processed within 24 hours, Monday to Friday excluding bank holidays. All deliveries must be signed for.

Returns

  • Changed your mind? Tell us within 14 days of receiving your item, then return it within a further 14 days, unused and in its original packaging. A minimum £9.99 collection fee applies.
  • Faulty or damaged on arrival? Contact us within 48 hours of delivery.
  • Custom-built PCs can only be returned if faulty. Opened headphones, earphones and AirPods can't be returned for hygiene reasons.

Full delivery information · Full returns policy