LG UltraGear OLED 45GX900A-B

Name: LG UltraGear OLED 45GX900A-B
Brand: LG
SKU: 969790
Price: 1576 EUR
Availability: OutOfStock
Rating: 8.8 (8 reviews)

LG UltraGear OLED 45GX900A-B visual Coolblue 1

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45 inches - Wide QXGA - 240Hz - OLED - Curved

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Specifications

Product information

Pros and cons

According to our monitor expert

You can see more of the playing field or can use multiple windows at the same time on the ultrawide screen.
Thanks to the curved screen, you can fully immerse yourself in your game.
On the Wide QXGA OLED display, you can enjoy a sharp image and realistic colors.
For the 240Hz maximum refresh rate, you have to connect the monitor via DisplayPort.
An ultrawide monitor takes up a lot of space, so your desk has to be large enough.

Description

Keep an overview of the playing field of your favorite game with the LG UltraGear OLED 45GX900A-B 45-inch curved ultrawide gaming monitor. Thanks to the large ultrawide screen, you can see even more of your favorite game. The curved screen also bends around your field of view. You can enjoy sharp images thanks to the Wide QXGA resolution. Thanks to the OLED panel, you can enjoy more color differences between light and dark colors. Because shadows and dark areas in your game look truly dark, your game looks even more realistic. You can game with smooth images thanks to the 240Hz refresh rate. You're also less bothered by blurry effects when you're moving quickly in your game thanks to the low 0.03ms response time. You can tilt the screen or adjust it in height, so you can game comfortably without pain in your neck or back. Have an NVIDIA or AMD video card? G-SYNC or FreeSync adjusts the frames per second of your video card to the refresh rate of your monitor. This way, you're less bothered by screen tearing.

Tips for using this product

Included by default

Manual(4.55 MB)
Power cord
Monitor base
HDMI cable
DisplayPort cable
USB-C cable

Key specs

	Sharpness	WQXGA
	Curved
	Aspect ratio	Ultrawide (21:9)
	Refresh rate	240 Hz
	Response time	0,03 ms
	Panel type	OLED
	Color depth	1 billion colors (10-bit)
	Built-in speakers

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Reviews

Rating

5 stars

4 stars

3 stars

2 stars

1 star

Most helpful reviews

Review is 10 out of 10.

An immersive monitor that forgets the 16:9 aspect ratio!

Excellent HDR color reproduction
Big screen!
Gaming at 165 hertz or lower resolution at 330 hertz
Both sides of the monitor dim slightly than the center

I've been searching for a really good ultrawide monitor for a long time. I always had an eye for LG ultrawide monitors, but the pixel density and resolution issues with previous models held me back. This monitor has definitely taken a step up in terms of pixel density (50% more than previous models) and 5120 x 2160 resolution. 45 inches is really quite large, so make sure your desk has enough space. HDR color reproduction is truly excellent! SDR isn't too bad in terms of color; some colors weren't quite as accurate, but using the Nvidia app to convert SDR videos to HDR content, the colors are reasonably accurate. The dual mode has eight different modes you can set, including the lower resolution (2560 x 1080) for gaming at 330 Hz. For 5120 x 2160 gaming at 165 Hz, you'll need a powerful graphics card with at least 16 GB of VRAM. If you have a slightly lower resolution, you can game at 3440 x 1440, but the 165Hz setting remains the same.

I also noticed that both sides of the monitor dim slightly more than the center, especially the HUD layout. This isn't a bug, but normal. It's not excessive, as most of the screen is visible from the center. It does brighten up at certain times. This is my first OLED monitor, so I'm not sure if others have the same issue, but after extended use, the monitor automatically performs an image cleanup to prevent burn-in when the PC shuts down.

Xavier
8 September 2025
Automatically translated from Dutch

Review is 8,4 out of 10.

Top monitor for mixed programming/gaming

Nice big monitor with lots of surface area
Fast refresh rate
Fantastic image
No KVM built-in is still a drawback

Yes, fantastic monitor that is extremely suitable for both programming and gaming.

Jody
3 November 2025
Automatically translated from Dutch

Review is 6,0 out of 10.

Extremely curved

Big
Beautiful OLED contrast in image
Power supply is large and heavy

I don't like it because it's more at home on the cockpit of the USS Enterprise than on my desk

Alex
10 September 2025
Automatically translated from Dutch

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Refresh rate
- 240 Hz
- 330 Hz
- 240 Hz
- 240 Hz
- 240 Hz
Sharpness
- WQXGA
- WUXGA
- 4K (UHD)
- Quad HD (1440p)
- Quad HD (1440p)
Panel type
- OLED
- OLED
- VA panel
- OLED
- OLED
Response time
- 0,03 ms
- 0,03 ms
- 1 ms
- 0,03 ms
- 0,03 ms

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Specifications

Product

Product number	969790
Manufacturer code	45GX900A-B.AEU
Brand	LG
Warranty	2 years
Processing of your defect	Via Coolblue

Screen

	Recommended display resolution	3440x1440
	Sharpness	WQXGA
	Aspect ratio	Ultrawide (21:9)
	Refresh rate	240 Hz
	Response time	0,03 ms
	Panel type	OLED
	Local dimming
	HDR support
	Contrast ratio	1500000
	Touchscreen
	Type of HDR	DisplayHDR 400 True Black, HDR10
	Screen reflection	Anti-glare
	Blue light filter
	Flicker-free technology
	Color space	DCI-P3
	Color depth	1 billion colors (10-bit)
	Adaptive Sync
	Type of adaptive sync	Freesync Premium Pro, G-Sync Compatible
	Resolution width	3440 pixels
	Resolution height	1440 pixels
	Anti-reflection type	Anti glare
	Horizontal viewing angle	178 °

Physical properties

	Height	66,17 cm
	Width	99,27 cm
	Depth	33,86 cm
	Weight	13,5 kg
	Color	Black
	Including stand
	Material	Plastic
	Cable management
	Appearance	Business, Neutral
	Curved
	Screen curve	800 R

Connectors and connections

	Number of HDMI connectors	2
	Number of Female HDMI type A 2.1 ports	2
	Number of USB-C ports	1
	Number of Female Standard DisplayPort 1.4 ports	1
	Number of female standard USB-A ports	2
	Female standard USB-A port version	3.0
	Type of USB port	Standard USB-A, USB-C
	Number of USB ports	3
	Suitable for daisy chaining
	Maximum USB-C dock power	65 W

Included

Included by default

DisplayPort cable, HDMI cable, USB-C cable

Adjustability

	Adjustable in height
	Tiltable
	Pivotable stand
	Pivot function
	VESA mount option
	VESA mount	100x100mm

Energy consumption

	Energy label	F
	Energy consumption standby	0,5 W
	Energy consumption active	41 W
	Energy consumption per 1000h	41 kWh
	Annual energy consumption	59,86 kWh
	Annual energy costs	23,94 euros

Other properties

	Built-in speakers
	Sound system	Stereo
	Webcam
	Split screen
	Kensington lock

Quality properties

Recommended for use

Gaming, Internet, email, and text processing, Watching movies in Full HD

This is the one

LG UltraGear OLED 45GX900A-B

Review is 8,8 out of 10, based on 8 reviews.

anything for a smile

Ordered before 23:59, delivered tomorrow for free

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Trustpilot customer rating 4,5/5

LG UltraGear OLED 45GX900A-B