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The 34UC89G combines an immersive IPS Curved UltraWide screen with NVIDIA G-SYNC compatibility, a 144Hz refresh rate, plus a dedicated Game Mode and Black stabilizer for ultimate domination.
NVIDIA G-SYNC™ Compatible
This monitor supports NVIDIA G-SYNC* , an advanced display technology that synchronizes refresh rates to the GPU inside GeForce GTX-powered PCs, eliminating screen tearing and minimizing stutter and input lag for a smoother, faster gaming experience.
*G-SYNC compatible graphics card sold separately.
144Hz Refresh Rate
Games played on the LG 34UC89G are noticeably smoother and clearer when compared to game play on monitors with refresh rates of 60Hz or 75Hz. Combine the clarity and smooth action with the curved screen, and gamers will fall in love with an optimized and immersive gaming experience.
UltraWide For A Gaming Advantage
The graceful curve of the screen offers an immersive gaming experience. The wider displays allows enhanced game play with the ability to see more of the game than on a 16:9 monitor.
With the Crosshair feature, gamers can take their skills to the next level. By placing the striking point in the center of the display, the feature enhances firing accuracy in first-person shooter games.
Advanced Gaming Features
Serious gaming features for serious gamers. Quickly optimize monitor settings to activate Black Stabilizer to reveal superior detail in dark scenes while the Dynamic Action Sync feature assures smooth, fluid gaming action.
Watch how OnScreen Control puts a host of essential monitor settings into a handy window for quick, easy access. Volume, brightness, picture mode presets, Screen Split 2.0 and more can now be adjusted with just a few clicks of the mouse, instead of hard buttons on the monitor.
*166Hz * Overclocking function may vary depending on graphic cards or game contents. LG Electronics is not responsible for the performance of specified feature or any adverse effect caused by it once activated by users
1 Year Parts & Labor
Country of Origin
Screen Size Class (diagonal)
300cd/m² (Typ.), 240cd/m² (Min.)
Pixel Pitch (mm)
0.312 x 0.310
up to 166Hz w/ OverClock
sRGB over 99%
Contrast Ratio (DFC)
Anti glare ,3H
2560 x 1080 @ 166Hz
USB Up-Stream (ver 3.0)
USB Down-Stream (ver 3.0)
-5° (front) ~ 20° (rear)
Wall mount size (mm)
100 x 100
USB3.0 Upstream Cable
No built-in speaker
What people are saying
Rated 4 out of
Great MonitorAfter using this monitor for about 2 months now, my only complaint would be backlight bleed and lack of ability to change picture settings. The monitor performs great, looks great, and the ultrawide is a great setup.
Definitely recommend this monitor for an entry level ultrawide gaming monitor that doesn’t cost a fortune.
Date published: 2019-12-19
Rated 5 out of
Awesome monitorBought this a month ago and it changed my gaming for the better! Love the looks and features and now I can not wait to get home and game!
Date published: 2019-11-25
Rated 4 out of
Amazing value.All around a great product, love the refresh rate and g-sync is amazing. My one and only issue is a small color defect on the left side, it's slightly more yellow than the right. Cannot be noticed while gaming, and is only visible on a bright white screen, such as surfing web pages etc.
Ask your questions. Share your answers. Please review the detailed product information and help guides in the Product Support section for this product prior to posting a question.
Can you use G-SYNC and split screen at the same time? Example: play a game on the left side with G-SYNC and have a standard browser's window open on the right side?
Asked by: Brandon85
That will depend on if you're using the split screen provided by the Window OS or if you're using LG's proprietary Screen Split feature which you access from the Onscreen Control software with the LG 34" Class 21:9 UltraWide® Full HD IPS Curved LED Gaming Monitor with G-SYNC™ (34" Diagonal), Model # 34UC89G-B. You could use Snap, a windows management feature that allows you to arrange open windows, including maximizing and resizing, just by dragging and dropping a window to different edges of the screen or by using a series of [Windows] key shortcuts in tandem with LG's screen split...^IFV
Answered by: Ivanf
Date published: 2019-04-03
i have 2 and want to mount on the wall which mounts are available?
i need the ability to adjust up/down left/right in/out
Asked by: vin p
Hello, the units use Wall mount size (mm) 100 x 100. ^AC
Answered by: Amber C
Date published: 2019-02-11
Does this support HDR?
Asked by: Shariar
The LG 34" Class 21:9 UltraWide® Full HD IPS Curved LED Gaming Monitor with G-SYNC™ (34" Diagonal), Model # 34UC89G-B is not an HDR monitor and does not support HDR...^IFV
Answered by: LGJoel
Date published: 2018-11-01
Im looking to buy this monitor and play gta 5 on steam and im looking for your feedback if this monitor would be able to handle the game at its maximum capacity with just the monitor itself and not with any computers or graphic card upgrades.
Asked by: Harvey_Thanos
A Quality monitor Deserves a Quilty GPU. GTA 5, I would recommend a GTX 980 or higher. I have a GTX 980ti. All my game's run Great maxed out.
Answered by: Beretta
Date published: 2020-01-02
Hi there, I want to know if (and how) this monitor is compatible with a 2017 MacBook Pro 15 in.
Asked by: FernandoA
Unfortunately, we are not familiar with the specifications for your 2017 Macbook Pro 15 inch, however, the LG 34" Class 21:9 UltraWide® Full HD IPS Curved LED Gaming Monitor with G-SYNC™ (34" Diagonal), Model # 34UC89G-B is a Plug and Play monitor so it does not require you to install drivers, your PC should be able to detect it automatically. It has an HDMI (Ver 1.4) port and a DisplayPort (Ver 1.2) for connectivity...^IFV
Answered by: LGJoel
Date published: 2018-03-07
Would be able to get great gaming experience with my Xbox One X playing on this Monitor?
Asked by: Lord Sour Kush
The LG 34" Class 21:9 UltraWide® Full HD IPS Curved LED Gaming Monitor with G-SYNC™ (34" Diagonal), Model # 34UC89G-B has an HDMI (ver.1.4) port on it that supports a maximum resolution of 2560 x 1080 @ 60 Hz and has a refresh rate of up to 166Hz when overclocked, a Response Time (GTG) of 5 ms. It has advanced gaming features that allow you to quickly optimizer monitor settings to activate Black Stabilizer which reveals superior details in dark scenes and a Dynamic Action Sync feature that assures smooth, fluid gaming action. Check the specifications for your gaming console for connectivity and what the best resolution for you to use is...^IFV
Answered by: LGJoel
Date published: 2020-01-13
I'm looking for the best full 4k monitor dedicated to my Xbox one X. Can u help me
Asked by: Half hands
There aren't any monitors that are dedicated to any one particular gaming console, but currently, the LG 32" Class 4K UHD IPS LED Monitor with HDR10 (31.5" Diagonal), Model # 32UD99-W would be the best monitor as it features a resolution of 4K UHD (3840 x 2160), it supports HDR10 and also supports AMD FreeSync™ Technology over HDMI, has an ultra-thin bezel—a mere 1.3mm—on four sides of this streamlined display which offers a virtually borderless visual experience. You can review all its specifications at http://www.lg.com/us/monitors/lg-32UD99-W-4k-uhd-led-monitor...^IFV
Answered by: LGJoel
Date published: 2020-01-13
I am looking for two curved screens apprx. 32-34" and a stand that permit the monitors to be rotated so that they are back to back instead of both facing the same way.
Asked by: wrest
The LG 34" Class 21:9 UltraWide® Full HD IPS Curved LED Gaming Monitor with G-SYNC™ (34" Diagonal), Model # 34UC89-B is one of six curved monitors that we have in our lineup that have a 34" screen. The other Models are the 34UC79G-B, 34UC98-W, 34UC88-B, 34UC99-W, and 34UC80-B. Regrettably, none of these have a stand that will permit you to rotate them so they are back to back. You can review the above-mentioned monitors at http://www.lg.com/us/monitors/all-monitors. Of those monitors that we have in our lineup that are VESA Compliant monitors, you can search to see if there are third-party VESA Compliant Stands that will function the way that you require that can be used with the monitors...^IFV
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