LG UltraGear 39GX90SA-W 39 inch OLED 240Hz Curved Monitor
The LG UltraGear 39GX90SA-W combines a 39-inch 800R curved OLED panel with webOS smart features. Enjoy ultrawide QHD at 240Hz, 0.03ms GtG response, USB-C 65W and built-in stereo speakers in a white finish.
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Overview
LG ULTRAGEAR 39GX90SA-W 39 INCH OLED 240HZ CURVED MONITOR

OLED gaming meets smart entertainment.
The white 39GX90SA-W pairs a 39-inch 800R curved OLED display with webOS smart features. Its ultrawide 3440 × 1440 resolution, 240Hz refresh rate and 0.03ms GtG response make room for gaming and entertainment in one setup.
Viewable Display Diagonal
Native Resolution
Listed Refresh and Input Conditions
Panel Technology
A vivid, curved gaming view
The 21:9 OLED panel covers 98.5% DCI-P3 and supports DisplayHDR True Black 400. G-SYNC Compatible and FreeSync Premium help synchronise the display with compatible systems, while the 800R curve wraps the image around your viewing position.
Smart features and practical connections
Use webOS entertainment features with network access; app availability and subscriptions vary by region. Wi-Fi, Ethernet and Bluetooth connectivity sit alongside HDMI, DisplayPort and USB-C with up to 65W power delivery. Dual 7W speakers and an adjustable stand complete the desk setup.
Plan Your Screen Area
The display specification is 39 inches, with 3440 × 1440 resolution. Compare the screen area and aspect ratio with your usual games and desktop work, leaving room on the desk for a comfortable viewing position.
Match the Refresh Mode to Your Setup
Refresh rate: 240Hz. The available refresh mode depends on the resolution, input, source device and supported settings. Check those conditions together before choosing a cable or expecting the highest listed refresh mode from your system.
Arrange the Display on Your Desk
Stand: Tilt, height and swivel adjustment. VESA mount: 100 × 100 mm. Use the listed stand adjustments to position the display for your desk and chair. If you choose an arm or wall mount, check the stated VESA pattern and the mounting hardware requirements.
Use Supported Variable-Refresh Settings
The listed adaptive-refresh support is NVIDIA G-SYNC Compatible; AMD FreeSync Premium. Check your graphics source, input and driver settings for the supported feature you want to use, keeping variable refresh separate from the monitor’s maximum fixed refresh specification.
Complete Your Workspace
Explore gaming PCs, gaming monitors for your setup.
Frequently Asked Questions
What size, panel and resolution does this display use?
39 inches. OLED panel technology. Native resolution: 3440 × 1440.
What refresh modes and input limits apply?
Refresh rate: 240Hz. Available modes also depend on your source, input, cable and supported settings.
Which video and USB connections are listed?
Inputs: 2 × HDMI; 1 × DisplayPort 1.4 (DSC); 1 × USB-C. USB-C power delivery: Up to 65W. USB hub: 2 × USB 2.0 downstream; upstream via USB-C.
What stand adjustment and mounting options are specified?
Stand: Tilt, height and swivel adjustment. VESA mount: 100 × 100 mm.
How is response time specified?
0.03ms GtG.
What HDR support is listed?
HDR10; VESA DisplayHDR True Black 400.
Are smart services available everywhere?
webOS; app availability varies by region. Check local service and subscription availability for your region.
Build Your Setup with AX Store Kuwait
Explore computers, displays and accessories for your workspace at AX Store Kuwait. For help choosing the right model or checking an accessory, contact AX Store.
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THE DETAILS
Technical specifications
Display specifications
LG
39GX90SA-W
39 inches
3440 × 1440
OLED
21:9
800R
240Hz
0.03ms GtG
275 cd/m² typical; 250 cd/m² minimum
DCI-P3 98.5% typical
1.07 billion colours
1,500,000:1 typical
HDR10; VESA DisplayHDR True Black 400
NVIDIA G-SYNC Compatible; AMD FreeSync Premium
webOS; app availability varies by region
Wi-Fi; Ethernet LAN (RJ-45); Bluetooth
2 × HDMI; 1 × DisplayPort 1.4 (DSC); 1 × USB-C
Up to 65W
2 × USB 2.0 downstream; upstream via USB-C
2 × 7W speakers; 3-pole headphone output
Tilt, height and swivel adjustment
100 × 100 mm
887.8 × 605.7 × 322.8 mm
11.45 kg
COMPLETE YOUR SETUP