UltraGear™ GX9s OLED gaming monitor displaying the webOS interface on a curved screen, set on a desk with stereo speakers.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*Peripheral devices pictured are not included in the package.
LG UltraGear™ GX9s | 34-inch OLED Smart Gaming Monitor powered by webOS
Introducing the smart gaming monitor, powered by webOS with AI. Relax during game breaks with effortless streaming*, including free LG Channels and a range of streaming options. Plus, enjoy cloud gaming* and easily navigate your entertainment with the remote**.
39GX90SB-W on a desk
Images have been simulated to enhance feature understanding and may differ from the actual user experience. Supported services may differ by country. Applies only to content produced in a 21:9 aspect ratio, and platform restrictions may apply to streaming content.
*Internet connection and subscription to related streaming or cloud gaming services are required. Separate subscriptions or payments may be required, and they are not provided (purchased separately).
**The remote control is included in the package.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*This feature is available on webOS only and is supported on models running webOS26 or later.
Enjoy your LG smart gaming monitor without compromising visual quality. AI Super Upscaling intelligently analyses individual objects within a scene and enhances them to deliver improved picture quality, while Dynamic Tone Mapping Pro* ensures balanced brightness and precise detail for each object. AI Picture Pro optimises overall image quality, creating a clearer, more immersive viewing experience on webOS.**
AI Surround Sound delivers immersive, room-filling audio with Virtual 11.1.2 Ch. AI Object Remastering separates dialogue, music and effects for clearer voices and richer sound. Within webOS, AI Sound Pro intelligently balances sound for a clear and immersive listening experience.
An LG Account and acceptance of the relevant Terms and Conditions and Privacy Policy are required to access network-based smart services and features, including streaming apps and webOS features. Without an LG Account, only external device connections (e.g. via USB-C or HDMI) are available. There is no fee to create an LG Account.
Images have been simulated to enhance feature understanding, and may differ from actual use experience.
* Image quality of upscaled content will vary based on the source resolution. AI Super Upscaling and Dynamic Tone Mapping Pro apply to smart gaming monitor equipped with the α8 processor.
**AI Picture Pro will work with any copyright-protected content on OTT services.
Gaming Portal brings supported gaming content and services together in one convenient place. Navigate with a gamepad or remote control, enjoy personalised gaming features, track rankings and points, and explore titles from selected cloud gaming services and native webOS app games.
* Support for cloud gaming services and games within Gaming Portal may vary by country. Some gaming services may require a subscription and gamepad.
Creation of an LG Account and acceptance of the relevant Terms and Conditions and/or Privacy Policy may be required to access certain features and smart services and features.
Step into an expansive field of view with a 39-inch WQHD (3440×1440) curved OLED display. With a vertical height similar to that of a 16:9 (2560×1440) display, the 21:9 ultra-wide screen provides a 34% wider workspace for a more immersive viewing experience.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
The brilliant OLED features Micro Lens Array+ (MLA+) technology, enhancing brightness (1300nit, peak) and performance by optimising light efficiency and minimising light loss.
Planetary images appear brighter and clearer on LG OLED monitors.
*39GX905B offers a peak brightness of 1300 nits, measured under internal test conditions. Actual brightness may vary by usage environment.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
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.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*The viewing experience may vary depending on the distance from the screen and the user's posture.
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.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*1.5M:1 is the contrast ratio at 25% APL (Average Picture Level) value which is given as a percentage and refers to the value between the black level and the reference level for white.
LG UltraGear's UL-verified advanced eye comfort technologies minimise reflections and are designed with visual comfort in mind, delivering crystal-clear gaming performance with consistent clarity. With UL verifications in key areas - reducing screen flicker, minimising glare, these technologies contribute to a gamer's visual comfort while gaming.
UL verifications for Flicker Free, Discomfort Glare Free, and Low Blue Light on UltraGear OLED gaming monitor (34GX90SB).
*All pictures shown are simulated for illustration purpose only.
*LG WOLED has been verified as Flicker-Free, Discomfort Glare Free, and Low Blue Light by UL.
*Certificate Number: Flicker-Free Display (OLED) - A196009, Discomfort Glare Free - V563481 (conditions of UGR less than 22), Low Blue Light Hardware Solution Platinum - V745051.
*The above feature may vary depending on the user’s computing environment or conditions.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
Minimize tears and lags with NVIDIA® G-SYNC® compatible and AMD FreeSync™ Premium Pro technology. Experience significantly reduced screen tearing and stuttering for smooth visuals with minimized motion blur and ghosting.
UltraGear gaming monitor (34GX90SB) delivers smooth, tear-free racing gameplay with NVIDIA G-SYNC and AMD FreeSync Premium Pro.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*The performance of the feature is compared to the models not applying the sync technology.
*Errors or delays may occur depending on the network connection.
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.
This image presents the connectivity options of an LG curved gaming monitor, including USB Type-C™ with PD 65W, DisplayPort 1.4 with DSC, and HDMI™ 2.1 ports, along with a laptop, keyboard, mouse, and headset setup for a versatile gaming and work environment.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*To work properly, the USB-C cable is required to connect the USB-C port to the monitor.
*It supports up to WQHD@240Hz refresh rate. To work properly, a graphic card that supports DP 1.4 or HDMI 2.1 cable is required.
*The graphic card, laptop, and peripheral devices pictured are not included in the package.
*USB-C, DP, and HDMI cables are included in the package.
Reducing input lag with Dynamic Action Sync, gamers can catch critical moments in real-time and respond quickly.
Black Stabiliser enhances visibility in dark scenes, revealing hidden details and improving clarity for smoother navigation through shadowy environments or sudden light changes.
The target point is fixed in the center to enhance shooting accuracy.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
Experience a space-efficient 4-side virtually borderless design with a base that supports swivel, tilt and height adjustment. The slim stand is designed to minimise desk space while adding a sleek, refined look to your setup.
4-side virtually borderless design
Swivel
Tilt
Height
Curved gaming monitor displaying an action-adventure game in a vibrant gaming setup with purple lighting and a PC tower nearby.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*The graphics card, desktop, and peripheral devices pictured are not included.
Display - Size [Inch]
39
Display - Resolution
3440 x 1440
Display - Panel Type
OLED
Display - Aspect Ratio
21:9
Display - Colour Gamut (Typ.)
DCI-P3 98.5% (CIE1976)
Display - Brightness (Typ.) [cd/m²]
275cd/m²
Display - Curvature
800R
Display - Refresh Rate (Max.) [Hz]
240
Display - Response Time
0.03ms (GTG)
Mechanical - Display Position Adjustments
Tilt/Height/Swivel
Adapter
YES
Calibration Report (Paper)
YES
Display Port
YES
HDMI
YES(2ea)
HDMI (Colour/Length)
White / 1.5m
Others (Accessory)
Door, Mouse holder, USB-C Cable Holder
Power Cord
YES
Remote Controller
YES
USB-C
Yes (1Up)
Dimension in Shipping (W x H x D) [mm]
985 x 338 x 550mm
Dimension with Stand (W x H x D) [mm]
887.8 x 605.7 x 322.8mm(UP)/ 887.8 x 495.7 x 322.8mm (Down)
Dimension without Stand (W x H x D) [mm]
887.8 x 404.4 x198.0mm
Weight in Shipping [kg]
17.5kg
Weight with Stand [kg]
11.45kg
Weight without Stand [kg]
7.30kg
Size [Inch]
39
Panel Type
OLED
Size [cm]
99.1
Aspect Ratio
21:9
Surface Treatment
Anti-Glare, Low-Reflection of the front polarizer
Response Time
0.03ms (GTG)
Resolution
3440 x 1440
Pixel Pitch [mm]
0.266 x 0.266mm
Colour Depth (Number of Colours)
1.07B
Viewing Angle (CR≥10)
178º(R/L), 178º(U/D)
Brightness (Typ.) [cd/m²]
275cd/m²
Contrast Ratio (Typ.)
1500000:1
Colour Gamut (Typ.)
DCI-P3 98.5% (CIE1976)
Curvature
800R
Colour Gamut (Min.)
DCI-P3 94% (CIE1976)
Refresh Rate (Max.) [Hz]
240
Brightness (Min.) [cd/m²]
250cd/㎡
Contrast Ratio (Min.)
1200000:1
Colour Bit
10bit
HDR 10
YES
AMD FreeSync™
FreeSync Premium Pro
Auto Brightness
YES
Colour Weakness
YES
Smart Energy Saving
YES
Colour Calibrated in Factory
YES
PIP
YES
PBP
2PBP
NVIDIA G-Sync™
G-SYNC Compatible
Dynamic Action Sync
YES
Black Stabiliser
YES
Crosshair
YES
FPS Counter
YES
VRR
YES
VESA DisplayHDR™
DisplayHDR™400 TRUE BLACK
User Defined Key
YES
RGB LED Lighting
Unity Hexagon Lighting
HDR Effect
YES
VESA Adaptive Sync
YES
Product name
LG UltraGear
Year
2026
Display Position Adjustments
Tilt/Height/Swivel
Borderless Design
4-Side Virtually Borderless Design
Wall Mountable [mm]
100 x 100
OneClick Stand
YES
Power Consumption (Sleep Mode)
Less than 0.5W
Power Consumption (DC Off)
Less than 0.5W
AC Input
100~240V (50/60Hz)
DC Output
20V, 13.5A
Power Consumption (On-Mode)
Power Consumption (On-Mode)
Power Consumption (On-Mode) (ErP)
36W
UL (cUL)
YES
CE
YES
Headphone out
3-pole (Sound Only)3-pole (Sound Only)
HDMI
YES(2ea)
DisplayPort
YES(1ea)
DP Version
1.4 (DSC)
USB-C
Yes (1Up)
LAN (RJ-45)
YES
USB Downstream Port
YES(2ea/ver2.0)
USB Upstream Port
YES(via USB-C)
USB-C (Max. Resolution at Hz)
3440x1440@240Hz
USB-C (Power Delivery)
65W
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