LG UltraGear 39GX900A-B 39" 3440x1440 WOLED 240Hz FreeSync/G-SYNC Curved Ultrawide Gaming Monitor

Manufacturer: LG | Model: 39GX900A-B.AEK | Product ID: 4110
ÂŁ1232.60 (inc. VAT)
8 in stock
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Product Technical Specification

Dimensions
Length / Depth322.8 mm
Width887.8 mm
Height605.7 mm
Width (without stand)887.8 mm
Depth (without stand)198 mm
Height (without stand)404.4 mm
Weight11.4 kg
Weight (without stand)7.3 kg
Colour
Primary ColourBlack
Speakers
SpeakersYes
Speaker amount and power output2x 7 Watt
Lighting
Lighting / RGBNo
Standards / Specifications
Adaptive Sync Technology (G-SYNC / FreeSync)AMD FreeSync Premium Pro, NVIDIA G-SYNC Compatible
Standard / specificationHDMI 2.1, DisplayPort 1.4
Webcam
WebcamNo
Display
Display Size in Inch39 "
Display Size in cm99.1 cm
Display ResolutionUWQHD (3440 x 1440 Pixel)
Display Aspect Ratio21:9
Display Refresh Rate240 Hz
Display Panel TypeWOLED
Colour depthmax. 1.07 billion colours (10 bit)
Colour space98.5% DCI-P3
Contrast Ratio (Static)1,500,000:1
Curved DisplayYes
Curved Display Radius800R
Display Response Time0.03 ms
Display Response Time (Grey-to-Grey)0.03 ms
HDRYes
HDR StandardHDR10, VESA DisplayHDR True Black 400
Screen Brightness SDR / normal275 cd/m²
Viewing angle178° horizontal / 178° vertical
Display Surface Typeglossy / non-reflective
TouchscreenNo
Ergonomics
Height adjustmentYes
Min. Adjustable Height0 mm
Max. Adjustable Height110 mm
Min. Swivel-30 °
Max. Swivel30 °
Min. Tilt-8 °
Max. Tilt15 °
PivotYes
Power Supply
Power Supply PositionExternal
Connectivity
Peripheral connectorsUSB 3.0 Typ-A (2x), 3.5 mm jack 4-pole, TRRS (1x)
External Ports
Display ConnectorsHDMI (2x), Display Port (1x)
Display Connector StandardsHDMI 2.1, DisplayPort 1.4
USB HubYes
Mounting
Vesa standard100 x 100 mm

Delivery Options

Economy Delivery
FREE
Economy Delivery

Economy Delivery (UK)

Estimated delivery date: Sun 07th Dec 2025 to Wed 10th Dec 2025
Business Express
ÂŁ6.95
Business Express

Business Express

Estimated delivery date: Sat 06th Dec 2025 to Mon 08th Dec 2025
View all Delivery Options & International Rates

LG 39" UltraGear WQHD OLED Curved Gaming Monitor with 240Hz, 0.03ms (GtG), DisplayHDR True Black 400, and USB-C (PD 65W) and HDMI 2.1 connectivity.

LG UltraGear 39GX900A-B 39" OLED Curved Gaming Monitor at a Glance:

  • Curved 94” WQHD OLED gaming monitor with Micro Lens Array+
  • 240Hz refresh rate and 0.03ms (GTG) response time
  • Supports NVIDIA G-SYNC, AMD FreeSync, and VESA AdaptiveSync
  • Eye comfort technology and adjustable ergonomics
  • DTS Headphone:X audio jack and two 7W speakers
  • HDMI 2.1 and USB-C (65W power delivery) connectivity

Curved OLED Monitor

The LG UltraGear 39GX900A-B 39" OLED Curved Gaming Monitor is engineered to deliver premium visuals that fill your full peripherals. This OLED display has an 800R curvature, for a consistent field of view, while the 21:9 WQHD (3440x1440) resolution is optimised for gameplay. All your images are crisp, vibrant, and fluid, thanks to the advanced OLED technology. Equipped with Micro Lens Array+ (MLA+) technology, this OLED display is up to 37.5% brighter than previous models, with optimised light efficiency and reduced light loss.

To ensure realistic colour, the LG UltraGear 39GX900A-B 39" OLED Curved Gaming Monitor has a 1.5M:1 contrast ratio and VESA Display HDR True Black 400. As a result, blacks are sharper and richer, heightening immersion as you game, create, and watch films. What’s more, the DCI-P3 98.5% colour gamut means all colours are accurately reproduced for lifelike imagery.

As an OLED monitor, the LG UltraGear 39GX900A-B 39" OLED Curved Gaming Monitor is equipped with features to prevent burn-in. As such, it has earned a three-year burn-in warranty from the point of purchase.

Immersive Gameplay

The LG UltraGear 39GX900A-B 39" OLED Curved Gaming Monitor will bring your visuals to life with smooth frame rates. The 240Hz refresh rate and 0.03ms (GTG) response time ensure there is no ghosting, only responsive and fluid visuals. This is paired with a ClearMR 13000 certification, testing well above the VESA Clear Motion Ratio. Enjoy fine detail on moving objects!

To ensure optimised visuals, the LG UltraGear 39GX900A-B 39" OLED Curved Gaming Monitor has support for three adaptive sync technologies. You can utilise NVIDIA G-SYNC, AMD FreeSync Premium Pro, or VESA certified Adaptive Sync to match your monitor refresh rate to GPU output for stutter and tear-free gaming.

To optimise your experience and improve skills, the LG UltraGear 39GX900A-B 39" OLED Curved Gaming Monitor has a range of gaming-focused features. Use them to reduce input lag and brighten dark scenes, for smoother gaming. With Crosshair and FPS Counter overlays, you can take advantage of improved aim and monitor loading performance in real time.

Connectivity

The LG UltraGear 39GX900A-B 39" OLED Curved Gaming Monitor includes an array of connectivity options, to optimise compatibility with your set-up. The DisplayPort 1.4 and HDMI 2.1 ports facilitate ultra-fast and responsive gaming on PC and console. The USB-C port provides an all-in-one solution, with 65W power delivery that you can use to charge your laptop.

Audio

Enjoy immersive audio, with the LG UltraGear 39GX900A-B 39" OLED Curved Gaming Monitor. This display has both headphone support and built-in speakers, negating the need for a dedicated audio system. The 4-pole headphone out audio jack is equipped with DTS Headphone:X technology, creating virtual 3D sound that really puts you in the action. Alternatively, the two 7W speakers have Depth-Sound technology that provides a dynamic audio experience.

LG Switch

The LG UltraGear 39GX900A-B 39" OLED Curved Gaming Monitor is supported by the LG Switch app. This software provides comprehensive control over this monitor, allowing you to fine-tune settings, OLED care features, and gaming profiles. What’s more, it can optimise your workflow with video call hotkeys and the option to split your screen into eleven sections.

Comfort

To ensure you stay comfortable throughout long working hours and intense gaming sessions, the LG UltraGear 39GX900A-B 39" OLED Curved Gaming Monitor has three UL certified eye care technologies. These balance reducing harmful blue light while still facilitating vibrant and bright colours. This monitor has been UL certified as Flicker-Free, Discomfort Glare Free, and Low Blue Light.

What’s more, the LG UltraGear 39GX900A-B 39" OLED Curved Gaming Monitor will effortlessly integrate with your gaming set-up. The L-shaped stand and sleek design were crafted to minimise the footprint to save on desk space. Plus, the four-sided borderless design will fit into any aesthetic while providing immersive visuals. Thanks to adjustment options, you can properly align this monitor with your set-up for a fully comfortable experience. Customise the swivel, tilt, and height to suit your needs.

Dimensions
Length / Depth322.8 mm
Width887.8 mm
Height605.7 mm
Width (without stand)887.8 mm
Depth (without stand)198 mm
Height (without stand)404.4 mm
Weight11.4 kg
Weight (without stand)7.3 kg
Colour
Primary ColourBlack
Speakers
SpeakersYes
Speaker amount and power output2x 7 Watt
Lighting
Lighting / RGBNo
Standards / Specifications
Adaptive Sync Technology (G-SYNC / FreeSync)AMD FreeSync Premium Pro, NVIDIA G-SYNC Compatible
Standard / specificationHDMI 2.1, DisplayPort 1.4
Webcam
WebcamNo
Display
Display Size in Inch39 "
Display Size in cm99.1 cm
Display ResolutionUWQHD (3440 x 1440 Pixel)
Display Aspect Ratio21:9
Display Refresh Rate240 Hz
Display Panel TypeWOLED
Colour depthmax. 1.07 billion colours (10 bit)
Colour space98.5% DCI-P3
Contrast Ratio (Static)1,500,000:1
Curved DisplayYes
Curved Display Radius800R
Display Response Time0.03 ms
Display Response Time (Grey-to-Grey)0.03 ms
HDRYes
HDR StandardHDR10, VESA DisplayHDR True Black 400
Screen Brightness SDR / normal275 cd/m²
Viewing angle178° horizontal / 178° vertical
Display Surface Typeglossy / non-reflective
TouchscreenNo
Ergonomics
Height adjustmentYes
Min. Adjustable Height0 mm
Max. Adjustable Height110 mm
Min. Swivel-30 °
Max. Swivel30 °
Min. Tilt-8 °
Max. Tilt15 °
PivotYes
Power Supply
Power Supply PositionExternal
Connectivity
Peripheral connectorsUSB 3.0 Typ-A (2x), 3.5 mm jack 4-pole, TRRS (1x)
External Ports
Display ConnectorsHDMI (2x), Display Port (1x)
Display Connector StandardsHDMI 2.1, DisplayPort 1.4
USB HubYes
Mounting
Vesa standard100 x 100 mm

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Buykingston order despatch times:

We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.

These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).

We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.

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Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.

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Our available delivery options*

Contact us for a shipping quote.

*All delivery times are estimated unless stated.

Product Returns Note

Buykingston offers a very flexible and hassle free returns policy. If for whatever reason you are not happy with the item purchased you can return it to us within 12months for a refund (for unused and unopened items) or within 30 days on opened and used items for a refund. This applies to items purchased direct through Buykingston  only.

Our 30 Day Returns Money Back Guarantee Satisfaction Guarantee:
For items opened and used and that are returned in a resellable condition.

Our 365 Day Returns Money Back Guarantee Satisfaction Guarantee:
For items that remain sealed and unused.

Some items are excluded from our moneyback guarantee unless they have developed a fault. These include;

- Headphones
- Earphones
- Custom made and designed products such as flash memory products with custom logo’s on them. E,g USB flash drives and memory cards with your own logo

Returns FAQs

What is your returns criteria?
On opened items 30 days from date of receipt or expected date of receipt on non tracked items.
On unopened items 365 days.

How do i go about returning my order?
Please contact us via our contact page with your order number where we will present you with an RMA number and returns label.

Do i need to contact you before returning my order?
Yes, to obtain an RMA number.

Does my item have to include its original packaging?
Yes for items that fall within our 30 day money back guarantee and our 365 day returns. Of course for faulty items we realise you may no longer have the packaging.

Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer direct for assistance.

Please ensure you have read and comply in full with Section 11 & 13 of our terms and conditions which you can read here in full.