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LG 34GX900A-B 34-Inch Ultragear WQHD (3440 x 1440) OLED Curved Gaming Monitor, 240Hz, 0.03ms, NVIDIA G-Sync, VESA DisplayHDR True Black 400, HDMI 2.1, DisplayPort, USB Type-C PD 65W, Black

  • Based on 95 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Aug 20
Order within 14 hours and 50 minutes
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Size: 34 inches


Style: 34GX900A-B


Features

  • The 240Hz OLED Gaming Monitor that’s Ahead of the (800R) Curve - The 34” WQHD OLED with a steep 800R curve and up to 1300 nits (APL 1.5%) peak brightness pulls you deep into the action, while a 240Hz refresh rate and 0.03ms response time keep gameplay insanely fast and smooth.
  • 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. The faster speed lets you respond quickly to opponents and enjoy smoother scenes with less lag or ghosting.
  • Ultimate Frame Sync: FreeSync Premium Pro & G-SYNC Compatible - Say goodbye to screen tearing and stutter. With AMD FreeSync Premium Pro 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.
  • Bright Picture. Deep Blacks, Brilliant Detail: OLED Gaming FTW - Get lost in vivid visuals with OLED technology, delivering exceptional brightness, up to 98.5% of DCI-P3 color coverage, a 1.5M:1 contrast ratio, and DisplayHDR True Black 400. Every gaming scene pops with deep blacks, brilliant highlights, and cinematic color.
  • The 800R Curve: Surround Yourself in the Action - 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 - UL-verified “Flicker-free Display”, “Discomfort Glare Free” and “Low Blue Light Hardware Solution Platinum”, this OLED display keeps your view crisp and colors bold. With advanced anti-glare tech minimizing reflections, you get distraction-free clarity—so you can stay focused and dominate in any lighting.
  • Unlock Your Potential with Advanced Gaming Features - Dynamic Action Sync reduces input lag for real-time response. Black Stabilizer brightens dark scenes to see what's hidden. FPS Counter shows your real-time frame rate. Crosshair enhances precision for deadly accuracy.

Description

Experience lightning-quick speed with up to a 240Hz refresh rate¹ and 0.03ms response time on a huge 34 Inch WQHD curved OLED monitor. The steep 800R curve surrounds you in the action. And with the 240Hz refresh rate, and 0.03ms response time, the action is fast, the play seamless and precise. Dive into UltraGear OLED’s immaculate visuals with up to 98.5% of DCI-P3 color coverage and a 1,500,000:1 contrast ratio for stunning blacks and vibrant colors. Adaptive sync technologies FreeSync Premium Pro and NVIDIA G-SYNC compatibility ensure tear-free, stutter-free performance, whether you're on PC or next-gen consoles. Plus, the UltraGear's 2-year OLED limited warranty and OLED Care features give you peace of mind, keeping your UltraGear monitor in top shape. Designed for gamers, the virtually borderless design complements any gaming setup, with height, tilt, and swivel adjustments for optimal comfort. The RBG backlighting creates the mood that’ll upgrade any battlestation. Source: Circana, LLC, Retail Tracking, Monitors, Gaming Designed, Display Type: OLED, Dollars, Jan - Dec 2025 ¹Graphics card that supports DisplayPort 1.4 or HDMI 2.1 are required to achieve up to 240Hz refresh rate support. Graphics card sold separately. ²Software installation required. Visit Support on LG.com to download.

Aspect Ratio: 219


Screen Finish: Matte


Contrast Ratio: 15000001


Refresh Rate: 240 Hz


Display Type: OLED


Display Technology: OLED


Viewing Angle: 178 Degrees


Brightness: 275 Candela per Square Meter


Pixel Pitch: 0.231


Color Gamut: 98.5


Has Color Screen: Yes


Picture Quality Enhancement Technology: DisplayHDR400 TRUE BLACK, HDR10


Screen Size: 34 Inches


Item Dimensions D x W x H: 11.5"D x 30.9"W x 22.9"H


Item Weight: 22.9 Pounds


Resolution: QHD Ultra Wide 1440p


Display Resolution Maximum: 3440 x 1440 Pixels


Native Resolution: 3440x1440


Connectivity Technology: DisplayPort, HDMI, USB Type C


Hardware Connectivity: DisplayPort, HDMI, USB Type C


Adaptive Sync: FreeSync Premium, G-Sync Compatible


Additional Features: Built-In Speakers, Curved, Dynamic Action Sync, Height Adjustment, High Dynamic Range, Swivel Adjustment


Specific Uses For Product: Desktop, Entertainment, Gaming


Color: Black


Mounting Type: Wall Mount


EU Spare Part Availability Duration: 2 Years


Shape: Curved


Brand: LG


Model Number: 34GX900A-B.AUS


Model Name: 34GX900A-B.AUS


Warranty Description: 2 Year Manufacturer


UPC: 195174124604


Manufacturer: LG Electronics Inc.


Built-In Media: DisplayPort Cable, HDMI Cable, Monitor, Power Cable, USB-C Cable


Best Sellers Rank: #3,382 in Electronics (See Top 100 in Electronics) #144 in Computer Monitors


ASIN: B0FDC2JBYG


Customer Reviews: 4.4 4.4 out of 5 stars (95) 4.4 out of 5 stars


Response Time: 0.03 Milliseconds


Total Number of HDMI Ports: 2


Total Usb Ports: 3


Number of Component Outputs: 2


Total USB 2.0 Ports: 2


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • OLED 240Hz is a game changer
Size: 34 inches Style: 34GX900A-B
Been running the LG 34GX900A-B for a few weeks and it’s hands down the best monitor I’ve ever owned. The OLED panel is stunning — true blacks, insane contrast, and colors pop without looking oversaturated. HDR content actually looks like HDR, not the washed-out version you get on LED monitors. The 34-inch ultrawide WQHD resolution is the sweet spot for me. Plenty of screen real estate for multitasking, coding, or having a game on one side and Discord/browser on the other. The curve is subtle but pulls you into games and movies really well. 240Hz with near-instant pixel response is buttery smooth. FPS games feel incredibly responsive, no ghosting, no smearing. Even just dragging windows around feels different — once you go 240Hz OLED, going back to 60Hz feels broken. USB-C with power delivery is a huge bonus. Single cable to my laptop for video, data, and charging. Cleans up the desk nicely. Build quality is solid too, slim bezels, sturdy stand with good height and tilt adjustment. Only things to watch for: OLED burn-in is always a concern long term, so I keep taskbar auto-hide on and use the built-in pixel refresh features. Also the glossy coating picks up reflections if you have bright lights or windows behind you. If you can afford it, this monitor is worth every penny. Productivity, gaming, content — it crushes everything. ... show more
Reviewed in the United States on May 24, 2026 by NiyalPatel
    • The best 34" monitor with the perfect curve (800r) The best 34" monitor with the perfect curve (800r)
Size: 34 inches Style: 34GX900A-B
Review Image by Zaid Martinez
Review Image by Zaid Martinez
Review Image by Zaid Martinez
i was afraid of buying the monitor because of these "Experts" criticizing so little details that nobody in their right mind notices. Like the text looks bad or some other say that it doesn't look as good as a qd oled or that the 800r is so aggressive that is not fit for this screen size and some other nonsense. Thank god i ignored all of these expert's opinions, reviews and comments. The quality of this monitor is insane, looks amazingly good and REALISTIC, the qd oled looks wow but its so bright is so unrealistic. This oled is perfect don't let the others make you think otherwise. Go for it, you won't regret buying this monitor, it's so fricking smooth with this refresh rate. I have no problem reading anything, the size is perfect and high quality, i don't have to move my head to look at the corners. Before this one i had a TV as a monitor the LG CX 49" oled and that tv was huge and i hated that i had to move my head all the time and i dare to say that this monitor looks even better than that 4k tv, with his 110 PPI vs the cx TV's 92 PPI this is the perfect size for me, best monitor i ever had hands down. ... show more
Reviewed in the United States on May 12, 2026 Reviewed in the United States on May 12, 2026 by Zaid Martinez
    • Great monitor at a fair price for what I am using it for.
Size: 34 inches Style: 34GX900A-B
Great monitor for gaming or just browsing. The colors are very vivid and brighter and when playing games, it has a 3D effect that surrounds the curved screen. Exactly what I was looking for and the size is perfect for looking into the small minute details. This monitor is worth very dollar I spent and more. ... show more
Reviewed in the United States on April 6, 2026 by Juan F. Molina
    • TERRIBLE QUALITY CONTROL FROM LG. TERRIBLE QUALITY CONTROL FROM LG.
Size: 34 inches Style: 34GX900A-B
Review Image by johnathan
Super excited to try out OLED technology and ultrawide only to be met with disaster. Tried setting up the monitor only to be met with the famous 'No Signal, Returning To Power Saving Mode' and this was after trying all the monitor ports, all the GPU ports, included cables, multiple known working cables, different laptops. So I thought to myself maybe I am stupid and just don't know how to plug in a cable. Made sure all the cables were seated properly. NOPE, NOTHING. Tried all the troubleshooting methods like hard resetting, factory resetting the monitor, different order of turn on the monitor and computer. Nothing works. Since LG is like one of two of the big companies that makes OLED, you'd think their QC would be great. Nope. Absolutely abysmal. ... show more
Reviewed in the United States on April 17, 2026 Reviewed in the United States on April 17, 2026 by johnathan
    • As described. Works great.
Size: 34 inches Style: 34GX900A-B
Yep it’s pretty sweet. Great contrast and it’s G-SYNC compatible if you prefer DLSS over native resolution. The size is as advertised, as is the responsiveness. Durability seems fine, but this is a new panel so it’s hard to say, but so far everything is quite steady. Setup is plug and play. Make sure you enable HDR in Windows and use the NVIDIA app for setup. It comes with a USB cable that you can use for the LG picture calibration. Overall 5/5 so far but again, it’s a new screen. We’ll see how it holds up over time but I don’t foresee any issues. ... show more
Reviewed in the United States on April 19, 2026 by Brett
    • Excellent Color and Refresh Rate / Excellent for Gaming
Size: 34 inches Style: 34GX900A-B
The screen refresh rate is excellent, the size is good for work and gaming, the colors are bright and easily adjustable. It delivers everything it advertises. You won't be disappointed!
Reviewed in the United States on June 9, 2026 by Skye L
    • Best smart monitor!
Size: 34 inches Style: 34GX900A-B
Great smart monitor! Although I use it for a primary monitor for my laptop and don’t use any of the other functions it works great and I love the clarity. Can be a bit of a pain to go to different inputs but all and all I highly recommend! Best in class!
Reviewed in the United States on May 31, 2026 by Stephen Czar
    • The Ultimate Ultra gear Upgrade – Worth Every Penny The Ultimate Ultra gear Upgrade – Worth Every Penny
Size: 34 inches Style: 34GX900A-B
Review Image by dj
it’s easily one of the best gaming displays I’ve ever used. The LG 34GX900A-B Ultra gear OLED is a dream monitor for gamers and creators alike. Between its lightning-fast performance, jaw-dropping visuals, and ultrawide immersion, it’s worth every penny. Highly recommended for anyone who wants the ultimate gaming and productivity setup Stunning OLED Picture Quality Colors are vibrant, blacks are truly deep, and HDR performance makes games look cinematic Ultra-Fast Performance With a 240Hz refresh rate and 0.03ms response time, gameplay feels buttery smooth and responsive—perfect for competitive gaming Sleek design with sturdy stand and VESA mount compatibility ... show more
Reviewed in the United States on November 20, 2025 Reviewed in the United States on November 20, 2025 by dj

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