LG Ultragear 39GX900A-B 39” OLED Curved WQHD Gaming Monitor – 240Hz, 0.03ms, G-SYNC & FreeSync Premium Pro, HDMI 2.1, DisplayPort 1.4, USB-C, VESA, Anti-Glare, HDR True Black, 800R Curve










Price: $996.99
(as of Feb 12, 2026 18:41:12 UTC – Details)
Product description


Bright Picture. Deep Blacks, Brilliant Detail
Immerse yourself in vivid visuals with OLED technology, offering up to 98.5% DCI-P3 color, a 1.5M:1 contrast ratio, DisplayHDR True Black 400. Every scene pops with deep blacks and brilliant color.
Up to 240Hz & 0.03ms, Outrageous OLED Gaming Speed
Game at the speed of OLED with an ultra-fast 240Hz and near instantaneous 0.03ms (GtG) response time. Faster speed lets you respond quickly to opponents and enjoy smoother scenes with less lag.
Ultimate Frame Sync: FreeSync Premium & G-SYNC
With AMD FreeSync Premium and NVIDIA G-SYNC compatibility, this OLED monitor delivers ultra-smooth, tear-free visuals, giving you perfect frame sync across PC and next-gen console gaming.
The 800R Curve: Surround Yourself in the Action
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. The 800R Curve: Surround Yourself in the Action Merchant Video
See and feel the action all around you with the dramatic 800R curve. This steep curvature extends your periphery, pulling you deeper into the game and making the action more intense.
Low Glare, More Focus: Play without Distractions
Stay focused with an OLED screen designed to minimize glare and reflections, reducing distractions so you can focus on every move, target, and win.
Unlock Your Potential w/ Advanced Gaming Features
Dynamic Action Sync reduces input lag for instant response.Black Stabilizer brightens dark scenes.FPS Counter tracks frame rate.Crosshair boosts precision for deadly accuracy.
Serious Connectivity for Serious Gamers
with HDMI 2.1, DisplayPort 1.4 and USB Type-C (65W power delivery), UltraGear’s versatile connectivity enables high-resolution graphics, and fast, fluid gaming.
Battlestation Upgrade Adjustable to Gamer Specs 
Go big with the virtually borderless 39” OLED screen. UltraGear’s sleek, slim design offers adjustable height, tilt, and swivel control for your ideal view, while RGB hexagonal backlighting sets the mood for your battlestation.
The 240Hz OLED Gaming Monitor That’s Ahead of the (800R) Curve — 39″ WQHD OLED with a steep 800R curve and up to 1300-nit (APL 1.5%) peak brightness pulls you into the action; 240Hz and 0.03ms (GtG) keep gameplay fast and fluid.
Up to 240Hz & 0.03ms – Outrageous OLED Gaming Speed — Respond faster and track targets with near-instant pixel transitions that cut lag and ghosting for competitive play.
Ultimate Frame Sync: FreeSync Premium Pro & G-SYNC Compatible — Tear-free, stutter-free visuals across PC and next-gen consoles for consistently smooth frames.
Bright Picture, Deep Blacks, Brilliant Detail — OLED delivers up to 98.5% DCI-P3, 1.5M:1 contrast, and DisplayHDR True Black 400 for cinematic color and shadow detail.
The 800R Curve: Surround Yourself in the Action — A dramatic 800R wrap enhances peripheral vision for deeper immersion in every scene.
Low Glare, More Focus — An anti-glare OLED surface helps minimize reflections so you can stay locked on every objective and every win.
Unlock Your Potential with Advanced Gaming Tools — Dynamic Action Sync, Black Stabilizer, FPS Counter, and Crosshair give you real-time advantages and precision.
Serious Connectivity for Serious Gamers — HDMI 2.1, DisplayPort 1.4, and USB Type-C with up to 65W power delivery support high-res, high-frame gameplay and single-cable setups.
Battlestation Upgrade, Adjustable to Gamer Specs — Virtually borderless 39″ OLED with height/tilt/swivel stand and RGB hexagonal backlight to match your setup.
OLED Protection: 2-Year Limited Warranty & Panel Care Tools – Rest easy knowing your OLED monitor is built to last. The 2-year limited warranty covers key components, including the OLED panel. And OLED Care tools such as pixel cleaning keep your display sharp, for reliable top-tier performance. Please see Warranty Information on this page for all warranty details.