LG UltraGear OLED 39" UWQHD 240Hz G-Sync Curved Gaming Monitor

UltraGear 39" Curved OLED Monitor: The Complete Sim Racing and Competitive Gaming Experience

The LG UltraGear 39GX90SA-W combines the best of gaming performance with a premium audiovisual experience. This 39-inch curved OLED monitor in 21:9 ultra-wide format offers an immersive view ideal for driving simulators and demanding titles. Its next-generation OLED panel reaches a frequency of 240 Hz , a response time of 0.03 ms (GtG) and an impressive maximum brightness of 1300 nits , thanks to Micro Lens Array+ (MLA+) technology.
Added to this is its webOS 24 Smart TV system, built-in speakers, advanced connectivity, and compatibility with G-SYNC, FreeSync Premium, and AdaptiveSync—a perfect combination of speed, color, and convenience.

Immersive performance around every corner: key benefits

• 800R curvature optimized for true immersion in racing, flight, or shooter simulators.
• 21:9 UltraWide QHD (3440×1440) : more peripheral vision, ideal for cockpits and triple monitor setups.
• OLED with DisplayHDR True Black 400 : deep blacks, 1,500,000:1 contrast, and 98.5% DCI-P3 gamut.
• Smart Monitor with webOS 24 : Streaming music, content, and cloud gaming without a PC or console.
• Immersive AI Sound 9.1 audio and built-in 7W stereo speakers.
• 0.03ms response time and true 240Hz via HDMI 2.1, DP 1.4 and USB-C.
• VESA AdaptiveSync certified + G-SYNC and FreeSync Premium compatibility to eliminate tearing.
• Premium gaming design : adjustable stand, ultra-thin edges, hexagonal RGB lighting and included controller.

Key features of the LG 39GX90SA-W

• Screen size : 39″ curved OLED (800R), 21:9 UltraWide
• Native Resolution : UWQHD (3440 × 1440)
• Refresh rate : Up to 240 Hz
• Response time : 0.03 ms GtG
• Brightness : 275 nits (typical) / up to 1300 nits (peak)
• Colors : DCI-P3 98.5%, 10-bit, factory calibrated (∆E ≤2)
• Contrast : 1,500,000:1
• Gaming technologies :
  • AMD FreeSync Premium
  • NVIDIA G-SYNC Compatible
  • VESA AdaptiveSync
  • Dynamic Action Sync, Crosshair, Black Stabilizer, FPS Counter
• Connectivity :
  • 2 × HDMI 2.1
  • 1 × DisplayPort 1.4 (DSC)
  • 1 × USB-C (data + video + PD 65W)
  • 2 × USB-A, RJ45 LAN, Headphone output
• Audio : 2 x 7W stereo speakers with AI Sound 9.1
• Integrated Smart TV (webOS 24) : access to apps, LG Channels, AI personalization
• Ergonomics : height adjustment, tilt, swivel. OneClick support and 100x100 VESA mounting.
• Design : 4-sided borderless, hexagon-shaped RGB backlight

Ideal for simulators, streamers and gamers looking for the all-in-one

This monitor is designed for those who want to immerse themselves in the virtual asphalt of iRacing, Assetto Corsa, or F1 24 with maximum fidelity. Its 21:9 aspect ratio offers an expanded field of view, and its 800R curvature helps reduce eye strain during long sessions.

Plus, it's perfect for those who combine work, leisure, and play in a single setup: you can watch 4K movies, play games in the cloud, edit content, or broadcast live , all from the same monitor thanks to the Smart webOS system and its LG Switch app.

Compatibility and requirements

• Compatible with PCs, consoles (PS5, Xbox Series X|S) , USB-C laptops, and streaming services.
• To achieve 240Hz, a compatible GPU is required via HDMI 2.1, DisplayPort 1.4, or USB-C with alt. mode.
• Includes remote control, HDMI 2.1, DisplayPort and USB-C cables.
• Internet connection required for Smart TV and cloud gaming.

Technical specifications

Immerse yourself in every curve, every shot, every victory

The LG UltraGear 39GX90SA-W is more than just a monitor: it's the ultimate control center for sim racers, creators, and gamers who demand the best. Speed, color, sound, connectivity, and content—all in one.