LG 34UC89G-B 34 Inch 21:9 UltraGear? Full HD IPS Curved LED Gaming Monitor with G-SYNC?
  • 34" 21:9 UltraWide? Full HD Curved IPS Display
  • NVIDIA G-SYNC? Technology
  • 144 Hz Refresh Rate
  • Dynamic Action Sync
LG 34UC89G-B 34 Inch 21:9 UltraGear? Full HD IPS Curved LED Gaming Monitor with G-SYNC?
$ 799.99
Where to Buy
*G-SYNC compatible graphics card sold separately.
Software download required to enable OnScreen Control. For download details, visit LGUSA.com/OnScreenControlSupport


  • DC Off
    less 0.3W
  • Input
    100-240Vac, 50/60Hz
    Power Save/Sleep Mode (Max.)
    less 0.3W
  • Normal On (EPA)
    Normal On (factory out condition Typ.)


  • TUV-Type
  • FCC-B, CE
    Yes (win 10)
  • ErP
    CCC (for China)
  • BSMI (for Taiwan)


  • Shipping Weight
    25.3 lbs
    With Stand (WxHxD)
    32.3" x 22.3" x 11.0" (up)/32.3" x 17.5" x 11.0" (down)
  • Without Stand (WxHxD)
    32.3" x 14.4" x 3.4"
    Shipping Dimensions (WxHxD)
    38.9" x 20.7" x 8.3"
  • With Stand Weight
    18.3 lbs
    Without Stand Weight
    13.4 lbs


  • Key Lock
  • HDCP
    Picture Mode
    (Game Mode) Gamer 1, Gamer 2, FPS1, FPS2, RTS, Reader
  • Automatic Standby
    4 Screen-split
  • Reader Mode
    Flicker Safe
  • Game mode
    Black Stabilizer
  • Response Time Control
  • On Screen Control
  • Overclock
    *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


  • Limited Warranty
    1 Year Parts & Labor
  • Country of Origin


  • Screen Size Class (diagonal)
    34" Curved
    Color Depth
    8bits, 16.7M
  • Brightness (typical)
    300cd/m2 (Typ.), 240cd/m2 (Min.)
    Viewing Angle(CR≥10)
  • Pixel Pitch (mm)
    0.312 x 0.310


  • Refresh Rate
    up to 166Hz w/ OverClock
  • Panel Type
    Aspect Ratio
  • Color Gamut
    sRGB over 99%
    Response Time
    5ms (High)
  • Contrast Ratio (DFC)
    1000:1 (Typ.)
    Surface Treatment
    Anti glare ,3H


  • Display Port
    Yes (ver1.2)
    DisplayPort OverClock
    2560 x 1080 @ 166Hz
  • USB Up-Stream (ver 3.0)
    Yes (1)
    USB Down-Stream (ver 3.0)
    Yes (2)
  • HDMI
    Yes (ver1.4)


  • Tilt (Angle)
    -5° (front) ~ 20° (rear)


  • Power Cord
    Display Port
  • Wall mount size (mm)
    100 x 100
    USB3.0 Upstream Cable


  • Speaker
    No built-in speaker

What people are saying

Rated 4 out of 5 by from Great Monitor After 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 5 by from Awesome monitor Bought 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 5 by from 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.
Date published: 2019-08-29
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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: 2018-02-02

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.newsusjournal.com/us/monitors/lg-32UD99-W-4k-uhd-led-monitor...^IFV
Answered by: LGJoel
Date published: 2018-01-31

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.newsusjournal.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
Answered by: LGJoel
Date published: 2018-08-23
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