LG

LG 34GX900A-B 34-Inch Ultragear WQHD 3440 x 1440 OLED Curved Gaming Monitor 240Hz 0 03ms NVIDIA G-Sync VESA

853+ bought in the past month

$696.99

About this item

  • 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.
  • 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.
  • Serious Connectivity for Serious Gamers - For next gen console gaming or PC gaming, 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.
  • Customize Your Screen View with the Switch App - The Switch app transforms your screen into a multitasking hub for work and gaming. Effortlessly split the screen into up to 6 sections, customize display layouts, or launch video calls with a single hotkey.
$696.99

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Product details

BrandLG
Screen Size34 Inches
ResolutionQHD Ultra Wide 1440p
Aspect Ratio21:9
Screen Surface DescriptionMatte

Technical specifications

standing_screen_display_size34 Inches
screen_resolution3440x1440
max_screen_resolution3440 x 1440 Pixels
number_of_usb_20_ports2
best_sellers_rank#3,267 in Electronics ( See Top 100 in Electronics ) #109 in Computer Monitors

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Customer reviews

4.1357 ratings

Customers say

Customers praise the monitor's build quality as a perfect gaming display, with stunning OLED picture quality featuring vibrant colors and deep blacks.

★★★★★

This thing is beautiful but HUGE!!!

Jay M Smith-SessaJanuary 1, 2026

Omg this thing is humongous! The screen looks amazing and the curve in envelopes you. This monitor paired with my Tobii eye and head tracker are an amazing pair in my opinion a better option than VR once you get it tuned into your play style. The base is heavier than the monitor so it is extremely stable and won’t be going anywhere when you might bump into it or anything. All around great the hight adjustment is extremely smooth but it is a little difficult to get it to stay exactly where you want it without resetting it and trying to get the exact spot again. The refresh rate and response time are top tier as well so very little flickering and stuttering if at all. I got it on sale for $800ish and I feel like I stole it at that price. All around 5 stars! Read more

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★★★★★

The Ultimate Ultra gear Upgrade – Worth Every Penny

djNovember 20, 2025

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 Read more

★☆☆☆☆

Acer Nitro 5 Laptop and LG 34 OLED curved Monitor do not play well together

ERADecember 28, 2024

The reason for this 1 star is the frustration this OLED monitor caused me yesterday. I bought this LG 34-inch Ultragear OLED Curved Gaming Monitor for my daughter's birthday. She has an Acer Nitro 5 laptop with Windows 11. It has a NVIDIA GeForce RTX 3050 Ti GPU with one HDMI port. She was using another LG 27 UltraGear Gaming Monitor with this Acer laptop. It was working fine! But she was able to convince me she needed an OLED one : ) My problem is this new LG OLED monitor does NOT work with her Acer Nitro 5 laptop. It has been a puzzle for me why it doesn't work. Believe me, I have tried everything I could think of. Here are the facts: 1- This new LG OLED monitor (same HDMI cable) works with another Acer laptop but with Win 10 and older NVIDIA GeForce GTX 1660 Ti video card 2- This new LG OLED monitor (same HDMI cable) works with a third Acer laptop with Win 11 and integrated graphics card (Intel) 3- As I said earlier my daughter's Nitro 5 works with a LG 27 monitor (non OLED) using the same HDMI cable that comes with LG 34 OLED 4- I have reinstalled Win 11 in the Nitro 5 and the same thing: LG 27 works but new LG 34 OLED does NOT work. By work I mean Win 11 would not even recognize the monitor is connected through HDMI cable 5- I have updated NVIDIA driver to latest version and still no luck What puzzles me is both devices are working in my opinion (Nitro 5 and LG 34) but they do not play well together. I even connected the Nitro 5 laptop with our TV and it works as soon as I plug the HDMI cable. And this LG 34 monitor also easily works with other laptops w/o any extra step. Just plug and play! I have contacted LG customer support and they responded to me right away, but they were also not able to help me with this problem. Still not sure if I will return or not because my daughter loved the white color of this monitor. Read more

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★★★★★

My all-time favorite monitor!

Scott R SmithDecember 7, 2025

These are the greatest monitors. I have 2 of them, and the graphics are fantastic! Super fast and works great with games or streaming. No matter what you do, it works great. I have two of them, and the brightness is excellent for doing my work. I also have the higher-end monitor. It is great for games, but sucks for productivity. It does not get bright enough. Read more

★★★★★

Fantastic Gaming Monitor! Very Meh Working/Productivity Monitor

Joshua TechmanNovember 27, 2024

Pros - Large size - Top notch image quality and colors of OLED making it suitable to some design/editing work! (Comes with calibration software too!) (Just don't expect text to be clear at this size/resolution/subpixel structure) - 240Hz refresh rate is fast enough to stay relevant gaming for several years to come - Crazy low response time/input lag - Aggressive curve let's your eyes see to all 4 corners easier (A must for most people at these sizes) - Size and curve gives excellent immersion while gaming! - USB ports are nice - Thin bezels and sexy design - Nice adjustable stand allows for good viewing angles - Since it's LG (King of WOLED panels), I trust it not to get burn-in anytime soon - Plenty of input ports - Resolution good enough for some general use (especially if you're coming from 1080p or 1920x1200) - Well-packaged and protected (I was so scared of it coming damaged, and the box certainly was, but it was in perfect condition) - Comes with high quality cables (nVidia) - Anti-glare coating reduces glare..ish Cons (I knew all these going in and didn't have any surprises) - Resolution (3440x1440) is not something to write home about and keeps things kind of insultingly big when scaled at 100% especially if you're used to 4k. Wish it were at least 5120x1440 for daily usability/work, but less pixels is easier for my laptop 3080 GPU to push higher quality game visuals and that's what I really got this for - WOLED subpixel structure and the resolution means that text clarity is just Ok (With Microsoft ClearType) (but terrible for text design and extensive text usage<just preview on a different monitor though, NBD>) - Expensive, but you already know that, and the market is what it is (I bought on Prime days 10-13-24 for ate twen tea forr) - Stand could have better viewing angles (I'd prefer to have this on a stand and be able to tilt it downward more, but I could buy an adjustable arm to put it on) - Some people may want it to include a KVM, but I'm fine without since it's just for my gaming rig - One button on bottom back of monitor a bit awkward to use (wish it had a remote!) - Annoying things that are just part of having an OLED monitor like having to let it run through it's 2 hour "OLED Image Cleaning" cycle, having to use more aggressive screensaver/sleep/shutdown settings to prevent burn-in, etc. - Lack of Dolby Vision that all LG OLED TVs come with (that would be nice for some games!) - Anti-glare coating is liked by some, but it does rob you of some of OLED's image quality lifting blacks a bit (Unfortunately, if you go with an LG OLED TV it'll have the beautiful glossy screen, higher 4K resolution <Not ultra-wide aspect ratio>, much taller depending on size, and no curve to help view the edges and make a much more immersive experience!) Read more

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