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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

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” 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 colours that remain consistent at wide viewing angles, with four times the resolution of Full HD.


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

Offering a new generation of convenience, USB Type-C™ ports allow 4K video display, data transfer and laptop/mobile device charging, all at the same time over a single cable.


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

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

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

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 Workstation-focused review Overall: This monitor is all about working space. There is no need to worry about everything looking small (unless your software rescales what it is showing you), unlike a 20-something inch 4k. Instead the large area means those pixels are spread out, so you get the same effect as roughly 4 monitors in one. With so many pixels, the most concerning negative aspect - outside unusable pixels, see below - is a minor point. Pros: Lots of pixels Painless setup with Win10 and Linux system With so many pixels, things don't look smaller - instead you gain real estate over a traditional monitor Speakers work well Remote very useful Input lag minimal / not noticeable for workstation use Brightness good Text and graphics are clear Enables better-than-expected usage of outside edge pixels (meaning the outside 3-4 inches, not the 5-10 pixels on the very outside edge, see below) Cons: Outside 5-10 pixels are unusable on all edges except top (they work, but you have to be directly in front of the edge to see them. On a 43" screen, you physically cannot sit in front of all edges. Typically, you will be situated about center of screen, which means the left, right, and bottom 10 or so pixels have an effect similar to looking clouded over or blacked out). No way to quickly alternate between current and last used input (the input selector is easy to use, but switching to the last input requires 3 different keys on the remote, or 4 movements on the joystick at the bottom of the monitor). A designated button for last input, or even double-clicking the existing input button, would be a great improvement. [This review was collected as part of a promotion.]
Date published: 2019-01-04
Rated 5 out of 5 by from Perfect 4K Display Overall quality of this huge monitor is excellent. At 43", it provides the best of all worlds -- for office-based duties to streaming 4K TV-quality and above still and moving images (pictures and videos) with zero degradation whatsoever. Previously, I was using a 23" monitor and my neck was in constant pain from craning forward. That issue is now in the past when I look up at my new theater-sized desktop PC TV!! Even though it is a 3-year old model, LG's state-of-the-art technology is still on par with the latest versions for 2018 and beyond. Very impressive to say the least. LG is #1 in my book. [This review was collected as part of a promotion.]
Date published: 2019-01-03
Rated 4 out of 5 by from Great Purchase decision Bought just before Christmas 2018, my old monitor was failing. I wanted something to make photo and video editing easier. Also found out my 8 year old computer did not have the capacity to take advantage of the 43UD79-B's resolution. I am confident that after I set up the new computer my rating will go to a 5. Seems big for the first week then after that you cannot imagine going back. Great color, brightness, sharp images [This review was collected as part of a promotion.]
Date published: 2019-01-02
Rated 3 out of 5 by from LG 4K monitor don't see any 4k quality or even 1080p on photos and movies on this. no auto adjustment for lighting. it feel like downfrade from my old 1080p monitor.
Date published: 2018-12-24
Rated 5 out of 5 by from A Satisfied Customer I am very happy with monitor. Very easy to setup and install. [This review was collected as part of a promotion.]
Date published: 2018-12-07
Rated 4 out of 5 by from Need help to enjoy all features I got this a couple of weeks ago and I am enjoying. Need heelp in learning about all the features, Is their a good and detailed manual out for me.You tube just covers unpacking-not going over the many features. Let me know where I can get a good an d detailed users manual. Bob [This review was collected as part of a promotion.]
Date published: 2018-12-06
Rated 5 out of 5 by from Excellent Monitor I purchased this monitor for productivity and it's exactly what I needed. There are plenty of IO ports and it allows me to run my laptops/desktop/Xbox simultaneously. There are two minor flaws to consider if you're looking to purchase this. 1. There is a bit of ghosting around the edges. It doesn't bother me because it's so minor, but it's just something to be aware of. 2. When playing on my Xbox One X, with the 4K settings on and the fastest framerate the monitor can handle, the screen will go black and eventually the sound will cut out. This forces me to turn off the monitor and turn it back on to resume playing. Perhaps this is user error on my part and there is something in the settings that is causing this, but I felt it needed to point it out since it does this without any configuration on the users part. Other than those two flaws, this is a great productivity monitor that has capable gaming features. Even with its minor flaws, I highly recommend this monitor for people in my situation who are looking for something for productivity with a bit of recreation. [This review was collected as part of a promotion.]
Date published: 2018-12-03
Rated 5 out of 5 by from Why did I wait so long? Great Monitor and a solid workstation investment. I did the research before buying - Do yourself a favor and pick one up. [This review was collected as part of a promotion.]
Date published: 2018-11-26
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