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LG

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

  • Based on 42 reviews
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Availability: 15 left in stock
Fulfilled by Amazon
Arrives Monday, Aug 17
Order within 7 hours and 28 minutes
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Size: 39 Inch


Style: 39GX900A-B


Features

  • The 240Hz OLED Gaming Monitor Thats 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.

Description

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. 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. 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. 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. Stay focused with an OLED screen designed to minimize glare and reflections, reducing distractions so you can focus on every move, target, and win. 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. 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.

Brand: LG


Screen Size: 39 inches


Resolution: QHD Ultra Wide 1440p


Aspect Ratio: 219


Screen Surface Description: Matte


Aspect Ratio: 219


Screen Finish: Matte


Contrast Ratio: 15000001


Refresh Rate: 240 hertz


Display Type: OLED


Display Technology: OLED


Viewing Angle: 178 degrees


Brightness: 275 candela_per_square_meter


Pixel Pitch: 0.27


Color Gamut: 98.5


Picture Quality Enhancement Technology: DisplayHDR 400 TRUE BLACK, HDR10


Screen Size: 39 inches


Item Dimensions D x W x H: 12.71"D x 34.95"W x 23.85"H


Item Weight: 11.5 kg


Resolution: QHD Ultra Wide 1440p


Display Resolution Maximum: 3440 x 1440 pixels


Native Resolution: 3440x1440


Response Time: 0.03 milliseconds


Total Number of HDMI Ports: 2


Total Usb Ports: 1


Number of Component Outputs: 2


Total USB 3.0 Ports: 2


Additional Features: Anti Glare Screen, Black Stabilizer, Crosshair, Dynamic Action Sync, Energy Efficient


Specific Uses For Product: Gaming


Color: White


Mounting Type: Wall Mount


Warranty Type: 2 Years Manufacturer Warranty


Shape: Curved


Brand: LG


Model Number: 39GX900A-B


Model Name: LG39GX900AB


Warranty Description: 2 Year Manufacturer


UPC: 195174127124


Manufacturer: LG


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


Power Consumption: 67 watts


Connectivity Technology: DisplayPort, HDMI, USB Type C


Hardware Connectivity: HDMI


Adaptive Sync: FreeSync Premium, G-Sync Compatible


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Aug 17

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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Similar Products

Top Amazon Reviews

    • Best purchase I've made in years, if not ever. Very impressive.
Size: 39 Inch Style: 39GX900A-B
The monitor looks great and is of sound quality. The base plate is heavy, thick metal, and the monitor itself is also a little heavy. Not in a bad way, but in a quality way. It feels solid and well built. No dead "pixels" or anything like that. The monitor is easy to move (slide) up and down and it does tilt to and fro, and it also pivots left and right. Due to the weight of the base plate, you can practically move it around with one hand. Again, a good quality feel to it. I like the fact that it has built in speakers so I can stream TV movies and news shows without the need for a sound bar or external speakers. Audio quality is about what you'd expect. I was able to apply EQ settings to it from my OS (Linux Bazzite) and they sound great when EQ'd for my old ears. The 800R curvature had me worried because I read reviews where people were either loving or hating it. I love it. I've found that viewing with my nose about 30" away from the center of the screen is perfect (3440X1440). Gaming is awesome at the 21:9 resolution. Unbelievably nice. The blacks are really, really black. The contrast is next level. Overall, great picture. When streaming at 1080p, the black bars on each side fade into the background of the mind and don't even get noticed. It does both NVidia Gsync as well as Radeon Freesync so no matter which card you have, gaming is smooth as silk. Unreal. Have to see it to really appreciate it. Expensive, but you get what you pay for. It's a quality piece of electronic gear. And it never bothers you about "cleaning" the screen for burn in prevention, it just does it when you turn your PC off for the night automatically while you sleep. LG did everything right with this one. 5/5 stars. Easily. I was not offered nor paid anything to type this. ... show more
Reviewed in the United States on July 14, 2026 by Jeffrey J Richard
    • Simply amazing.
Size: 39 Inch Style: 39GX900A-B
Review Image by Shaun R
Picture quality is unbelievable, hands down the best picture quality monitor or TV I’ve ever owned. I bought this to replace a 27-inch and 22-inch Acer setup that I had been using for 6+ years, and this was a MAJOR upgrade. Those monitors were fine, but pretty bland by today’s standards. Considering I work 10–12 hour days and also game and watch media regularly, I figured this was worth the investment. Out of the box, setup was incredibly easy. Everything clicks together nicely and just feels well built. The settings are also surprisingly good right away. What’s really cool is that the monitor automatically adjusts based on what you’re doing, for example, if you switch to HDR on your computer, the monitor switches to HDR as well. When I first started using it, I noticed a little bit of what I believe is ghosting, but a quick screen refresh completely fixed it. As for text clarity, anyone saying the text isn’t good must have extremely high expectations. The text on this monitor is actually clearer than what I was coming from on both of my Acers. Everything looks sharp and readable without needing to mess with a bunch of settings beyond. Performance-wise, this thing is an absolute beast. Running at 240Hz feels like a dream. The difference is immediately noticeable, everything looks and feels buttery smooth. From a productivity standpoint, I love being able to have wide spreadsheets and long files or web pages open without constant scrolling, which is incredibly useful as an accountant. Gaming looks fantastic on this monitor. Right now I’m playing on Xbox (hopefully moving to PC soon), so I do have black bars on the sides, which doesn’t bother me at all. I did try full-screen on Xbox initially, but you can tell it’s stretching the image slightly, and it started messing with my eyes. It’s playable and still looks good, but switching back to the black bars felt much more natural. As I’ll primarily be working on this monitor, I’m not too concerned about burn-in. There are precautions you can take, and newer OLED panels like this one include built-in features designed to help prevent it. My one real downside is the menu button. It’s not very user-friendly at all. The button is small, located on the back bottom of the monitor, and feels awkward to use. A remote or better button design would be a huge improvement, especially at this price point. Also, while I personally like it, I can see how the aggressive 800R curve could be too much for some people. It’s very “in your face” and definitely takes some getting used to. That said, I think it’s awesome. Gaming almost feels 3D, and for work it, lets me see a wide field of view without constantly turning my head. Overall, this monitor has been incredible so far and feels like a worthwhile investment for both productivity and gaming. ... show more
Reviewed in the United States on January 9, 2026 by Shaun R
    • Great monitor
Size: 39 Inch Style: 39GX900A-B
I love this monitor. I switched to this from a dual monitor setup with displays provided by my company (27" 60hz). The difference is unbelievable. The clarity is great, it's super easy to snap windows to each side of my screen to be efficient at work while also having a big and immersive picture for videos and games. I haven't done any benchmarking to see how accurate the colors are, etc., but overall it has been great in the first week. BTW, the listing didn't mention this, but this monitor has a built in speaker that is acceptable if you're not an audiophile. It also has "rgb" lighting on the back that creates a nice effect on your wall and reduces eye strain a bit. I bought this on an insane sale for $760. I think even at its normal price it would be a great display ... show more
Reviewed in the United States on January 10, 2026 by Adam
    • Great Monitor for 1440p
Size: 39 Inch Style: 39GX900A-B
The 39 inch size was perfect for me personally. Didn’t feel too big for a desk but was so immersive. Color quality is exceptional and the monitor feels high quality. I also found that when I played games that had to be played in a 16:9 format, it still looked good on the monitor. The internal speakers are also unexpectedly good and has a nice depth effect. ... show more
Reviewed in the United States on December 23, 2025 by Ben
    • Faulty OLED panel
Size: 39 Inch Style: 39GX900A-B
Review Image by Ellie Cantu
Monitor has been getting a blue/green line of pixels randomly during use since day one. I’ve only had this for three days, so I’m still within the return window luckily. I’d steer away from this model.
Reviewed in the United States on May 18, 2026 by Ellie Cantu
    • Impressive Upgrade
Size: 39 Inch Style: 39GX900A-B
I purchased this as an upgrade for my boss, and it did not disappoint. The OLED display is stunning—colors are vibrant, the picture is incredibly sharp, and the curved design really enhances the overall experience. Everything runs smoothly, and it just feels like a high-end, premium monitor. He’s been very happy with it, which says everything. Great choice if you’re looking for top-tier quality and performance. ... show more
Reviewed in the United States on March 18, 2026 by Jessica Proctor
    • Big, Bright, Beautiful.
Size: 39 Inch Style: 39GX900A-B
Review Image by Cliff Williams
Big, bright and clear. Excellent picture quality, and great speed.
Reviewed in the United States on June 9, 2026 by Cliff Williams
    • Nice
Size: 39 Inch Style: 39GX900A-B
Excelent
Reviewed in the United States on July 1, 2026 by Amazon Customer

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