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Key Features

  • 4K UHD (3840 x 2160) IPS
  • HDCP 2.2 Compatible
  • USB Type C™
  • 4x HDMI Inputs
  • On Screen Control
  • Factory Calibrated
Suggested Price


Suggested Price
Promotion Price*


Promotion Price*
43 Inch Class 4K UHD IPS Monitor

LG 4K UHD Monitor

With nearly as much screen area as four 21.5” monitors, the Ultra HD 4K 43UD79-B can multitask—and entertain—in exciting new ways.

43 Inch 4K UHD IPS

43” Class 4K UHD IPS Display

Outstanding Ultra HD performance is assured by the specially designed 4K display panel with in-plane switching (IPS), delivering accurate colors that remain consistent at wide viewing angles, with four times the resolution of Full HD.

HDCP 2.2 Compatible

HDCP 2.2 Compatible

Connect with confidence: This LG 4K monitor is compatible with the latest HDCP 2.2 copy protection, so it will display video from 4K streaming services, game consoles and Ultra HD Blu-ray disc players.

USB Type-C

USB Type-C™ (DP Alt Mode)

Offering a new generation of convenience, USB Type-C™ (DP Alt Mode) ports allow 4K video display and mobile device charging, all at the same time over a single cable.

4x HDMI Inputs

4x HDMI Inputs

Now, the monitor is a multimedia centerpiece. Easily and conveniently connect your other digital devices and peripherals with the convenience of 4 HDMI inputs.

Adjust Display Settings With Remote

Adjust Display Settings With Remote

Picture mode presets, including Picture in Picture, can be easily adjusted with the included remote control.

Software download required to enable OnScreen Control. For download details, visit

Screen Split

Screen Split

Customize your monitor layout for multitasking with the latest version of LG Screen Split. Resize and display multiple windows at once, with 14 options including four different picture-in-picture (PIP) choices.

10 Watt Speakers with Rich Bass

10 Watt Speakers with Rich Bass

Enjoy what's on the screen with sound produced by the monitor's two 10 watt speakers with Rich Bass. LG’s Rich Bass function can cover sound under 85Hz showcasing a wider and richer sound with impressive bass depth.


What People Are Saying

Rated 4 out of 5 by from Great Monitor - 1 Drawback For Mac Users One of the two best monitors I've ever used. An unbelievable amount of screen real estate with the ability to connect and display multiple devices on one screeen. There's a huge amount of ports available, including USB C. I love everything about this monitor with one exception. As a Mac user, the monitor does not deliver enough power to charge my 15" MBP (Late 2016). This would be the absolute perfect monitor if it could charge my laptop and one additional USB C would be welcomed. Besides that, what a great monitor. On a side note, the monitor was missing one fo the included cords. After a short online chat with LG customer service, I had the cable at my door in 3 days - thank you LG customer service! You can't really go wrong with this one, especially at the price point for a 43" 4k monitor!
Date published: 2018-05-18
Rated 4 out of 5 by from Great display, but mine has some problems The display itself looks nice! The size is perfect for 4k, and doesn't require Windows scaling at all. Of course the 4k screen real estate really makes things productive in use. I do have some problems with mine as shipped from Beach Camera (great deal!). The problems aren't theirs as this isn't a refurb, and the box was factory sealed. 1). The audio amplifier or speakers are shot. Staticy at any volume level by way of HDMI or DisplayPort. Dunno what happened, but it happened at the factory. 2). At seemingly random times, the monitor will black out for two to three seconds. This doesn't happen often, but still, it seems to be several times a day. I am downloading the software so that I can see if this is fixed in a firmware update. Provided that mine was just bad luck of the draw, I would recommend this monitor to my family and friends. As for the speakers, that isn't too big an issue, as my motherboard has some rather high end audio on it, and I patch that direct to my stereo.
Date published: 2018-05-14
Rated 5 out of 5 by from Great features... excellent built and quality I use this working from home as an IT pro for over 10 hours a day and has been the best monitor I have ever used
Date published: 2018-05-12
Rated 5 out of 5 by from Best Quad Monitor Setup! The only improvement would be the same PBP on a 60"
Date published: 2018-05-10
Rated 5 out of 5 by from Screen Size I bought this monitor for video editing and the screen size is a great for multiple open windows.
Date published: 2018-05-09
Rated 5 out of 5 by from The best display I've had so far. So I have had this monitor for a month and I must say that it is AMAZING. At first it took a while to get used to because it is so much bigger than most displays that people have. Before, I had an average sized monitor so it took awhile to get used to. The monitor has crystal clear 4K with videos and for gaming. The games look amazingly detailed and with such a big size it is greatly immersive. I have had different LG monitors for 10 years now and they never fail or have any defects. LG products are more affordable while still delivering the top quality that you want. If you want this monitor for gaming or for productive work, I promise you will not be disappointed.
Date published: 2018-05-09
Rated 5 out of 5 by from How did I ever live without this? I didn't know what pure black and white was, until I bought fantastic monitor. I've been so much more productive with the immense screen real estate.
Date published: 2018-05-06
Rated 4 out of 5 by from Great 4K Display, Has some issues.. Pro: Display Port 4k 60hz 4:4:4 w/ 10 bit color out of the box with my 980 Ti graphics card. Much better input lag compared to standard 4K TVs. Cons: Only 43 inches. Wierd gradient edging on sides of display. Stand is pretty terrible. Inputs are very difficult to get to. (Should be on the side.) IPS display will last longer then unreliable OLED tech. Could not get firmware updated due to USB-C port seemingly defective...
Date published: 2018-04-09
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Ask your questions. Share your answers.
Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

I have the LG 43UD79-B. I did not receive a software CD. I can't find the Dual Controller software on the website. This monitor has dual controllers. Do I need the software to utilize dual controllers or is it automatic with PBP and PIP?

Asked by: davidk
You can find drivers and OnScreen control software on the following page: If you still need assistance reach out to our computer specialists directly by calling 800-243-0000. ^CP
Answered by: ChrisPSM
Date published: 2018-04-21

Hi, I'm looking at the 43UD97-B. is this also available at larger sizes 52"-55" or so ?

Asked by: ErwinM
The LG 43" Class 4K UHD IPS LED Monitor (42.5" Diagonal), Model # 43UD97-B is only available in a 43" screen. The number at the beginning of the model number indicates the screen size...^IFV
Answered by: LGJoel
Date published: 2018-04-17

Does this monitor use PWM? Is it flicker free? any input is great

Asked by: wrightpt
The LG 43" Class 4K UHD IPS LED Monitor (42.5" Diagonal), Model # 43UD79-B uses PWM at a higher frequency which makes it eye-friendly in practically every normal usage mode....^IFV
Answered by: LGJoel
Date published: 2018-04-16

Can you hook up 2 separate computers to this monitor and use it as a dual monitor for both computers? Currently using quad monitors and would love to cut back.

Asked by: footbalplaya68
The LG 43" Class 4K UHD IPS LED Monitor (42.5" Diagonal), Model # has 4 x HDMI ports (2 x ver 1.4 & 2 x ver 2.0), a Display Port (ver 1.2) and a USB Type-C™ (DP Alt Mode) on it, so technically, you can connect up to 6 computers to it. There may be downsides to connecting multiple computers to the monitor and you might want to look into something like a KVM switch...^IFV
Answered by: LGJoel
Date published: 2018-04-16

do you have a 43 inch monitor with HDR?

Asked by: Dexter1
At this time, the largest monitors we have with HDR are 32UD99-W or 34WK650-W. ^AC
Answered by: Amber C
Date published: 2018-04-03

Is the 43UD79-B compatible with the Mac?

Asked by: Scarletjay
The LG 43" Class 4K UHD IPS LED Monitor (42.5" Diagonal), Model # 43UD79-B has 4x HDMI Inputs, a USB Type C™ port and a DisplayPort fo4 connectivity to Macs. The USB Type-C™ (DP Alt Mode) in 43UD79 Monitor is not for charging laptops...^IFV
Answered by: LGJoel
Date published: 2018-03-26

Does this unit have the FREESYNC feature and does it support that feature through HDMI for the Xbox One X??

Asked by: SantinoVC
The LG 43" Class 4K UHD IPS LED Monitor (42.5" Diagonal), Model # 43UD79-B is not a Freesync monitor...^IFV
Answered by: LGJoel
Date published: 2018-02-21

Should I be able to plug my wireless keyboard receiver into the a USB port on the hub and have a functional keyboard/mouse? Mine does not work.

Asked by: Chrispa262
In order for the USB port to work fine, you need to connect a USB C cable to the monitor going to the computer. ^AC
Answered by: Amber C
Date published: 2018-02-15
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