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LG UltraGear 34" 1440p 240 Hz OLED Curved Gaming Monitor

BH #LG34GX90SAWA • MFR #34GX90SA W.AUS
37 reviews
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LG UltraGear 34" 1440p 240 Hz OLED Curved Gaming Monitor
Key Features
  • 34" 21:9 OLED Panel
  • HDMI | DisplayPort | USB-C
  • 3440 x 1440 Resolution at 240 Hz
  • FreeSync Premium | G-Sync
Surround yourself in the action with the LG UltraGear 34" 1440p 240 Hz OLED Curved Gaming Monitor. Featuring a 34" 21:9 OLED 800R curved panel, the UltraGear boasts in-depth visuals and impressive color at up to 3440 x 1440 resolution. Enjoy your favorite streaming and cloud gaming services through the included webOS 24 support.
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LG 34GX90SA-W Overview

Surround yourself in the action with the LG UltraGear 34" 1440p 240 Hz OLED Curved Gaming Monitor. Featuring a 34" 21:9 OLED 800R curved panel, the UltraGear boasts in-depth visuals and impressive color at up to 3440 x 1440 resolution. Enjoy your favorite streaming and cloud gaming services through the included webOS 24 support.

The 240 Hz refresh rate and 0.03 Gray-to-Gray (GtG) response time provides you with fluid-like motion, ideal for fast-paced games. AMD FreeSync Premium Pro and NVIDIA G-Sync adaptive sync technologies work with your respective graphics card output to reduce screen tearing and image ghosting for better gaming performance. Support for 1.07 billion colors, 1,500,000:1 contrast ratio, and 1300 nits of brightness all work together to provide vivid colorization whether you are working on a project, editing a video, or playing your games. The 178° horizontal and vertical viewing angles, in combination with the anti-glare panel, ensure a comfortable viewing experience from multiple viewpoints. Tilt the screen from -8 to 15 degrees for the most optimal ergonomic viewing position.

OLED Technology
This monitor's OLED panel delivers exceptional brightness, up to 98.5% of DCI-P3 color coverage, and a 1,500,000:1 contrast ratio for vivid visuals. DisplayHDR True Black 400 provides impeccable image detail in dark scenes with deep, rich, black color expression.
webOS AI Gaming
Enhance your gaming experience in webOS using AI tools. Sharpen visuals using the Dynamic Tone Mapping and AI Picture features, while AI Personalized Picture Wizard customized settings to your preference. AI Sound delivers precision-tuned audio for every game or stream.
Connectivity
Two HDMI 2.1 ports, one DisplayPort 1.4 input, and a USB-C upstream port are available for connecting a console or PC. The USB-C port also delivers 65W of power delivery for charging devices. Two USB-A 2.0 ports can be utilized for peripherals or connecting external drives. Listen to music with headphones by using the TRS audio jack and connect a stable wired connection through the RJ45 GbE port.
UPC: 195174115800

LG 34GX90SA-W Specs

Key Specs
Display Size
34"
Panel Type
OLED
Native Resolution
3440 x 1440
Maximum Brightness
275 nits / cd/m2
1300 nits / cd/m2 (HDR Mode)
HDR Support
Yes: HDR10
Color Support
1.07 Billion Colors
Color Gamut
98.5% DCI-P3
Finish
Anti-Glare
Touchscreen
No
A/V Inputs
DisplayPort 1.4 / HDMI 2.1
A/V Outputs
3.5 mm (Analog Audio)
Wireless
Wi-Fi / Bluetooth
USB I/O
USB-A 2.0 / USB-C 2.0
Built-In Speakers
Yes
Webcam
No
Display
Size
34"
Panel Type
OLED
Aspect Ratio
21:9
Native Resolution
3440 x 1440
Maximum Brightness
275 nits / cd/m2
1300 nits / cd/m2 (HDR Mode)
HDR Support
Yes: HDR10
Contrast Ratio
Near Infinite (Black Pixels Emit No Light)
Response Time
0.03 ms
Refresh Rate
240 Hz
Variable Refresh Technology
FreeSync, G-Sync
Color Support
1.07 Billion Colors
Color Gamut
98.5% DCI-P3
Viewing Angle (H x V)
178 x 178°
Curved Display
Yes: 800R
Finish
Anti-Glare
Surface
Touchscreen
No
Connectivity
A/V Inputs
2x HDMI 2.1
1x DisplayPort 1.4
A/V Outputs
1x 1/8" / 3.5 mm (Headphone)
HDCP Support
Yes
Wireless
Wi-Fi / Bluetooth
USB I/O
1x USB-C 2.0 with USB PD 65 W
2x USB-A 2.0
Ethernet I/O
1x RJ45
Multi-Input Support (PIP/PBP)
Yes: Picture-in-Picture (PIP), Picture-by-Picture (PBP)
Speaker
Built-In Speakers
Yes
Hardware
Built-In Mic
No
Camera
Webcam
No
Electrical
Input Power
100 to 240 VAC, 50 / 60 Hz
Power Adapter Type
External
General
Adjustments
Adjustable
Swivel
Tilt
Height
VESA Mounting-Hole Pattern
100 x 100 mm
Lock Slot
No
Dimensions
30.9 x 22.9 x 11.5" / 784.9 x 581.7 x 292.1 mm (with Stand)
30.9 x 14.1 x 6.6" / 784.9 x 358.1 x 167.6 mm (without Stand)
Weight
22.9 lb / 10.4 kg (with Stand)
13.7 lb / 6.2 kg (without Stand)
Packaging Info
Package Weight
34.65 lb
Box Dimensions (LxWxH)
36.25 x 21.5 x 11.5"

LG 34GX90SA-W Reviews

Speakers just stopped working about 3 months into ownership also the screen flashes black at random times.

By Charles
Rated 2 out of 5
Date: 2026-06-12

Speakers just stopped working about 3 months into ownership also the screen flashes black at random times. NO IAM NOT GOING TO TECH YOUR PRODUCT TO MAKE IT WORK.

An Awesome Product!

By Matthew G
Rated 5 out of 5
Date: 2026-05-27

[This review was collected as part of a promotion.] In my first few days of using this monitor, I have been nothing but impressed so far. I game a lot and also consume media content and the OLED panel and size is truly immersive. This monitor is the sweet point of not being overwhelming big, but still looking massive. I could not recommend this product anymore! Review submitted as part of a program that provides a purchase discount.

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