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LG 43UD79-B MONITOR REVIEW

Usage Ratings - Version 1.0
7.2
Mixed Usage
7.5
Office
7.4
Gaming
7.1
Multimedia
7.0
Media Creation
5.2
HDR Gaming
Size : 43"
Resolution : 3840x2160
Refresh Rate : 60 Hz
LCD Type
:
IPS
Variable Refresh Rate
:
No

The LG 43UD79 is a decent 4k monitor with an IPS panel. The high resolution and large 43" size is good for multitaskers, as it allows viewing multiple documents side-by-side. The IPS panel has a low native contrast ratio so blacks appear gray in a dark room, but the image also remains accurate when viewed from up close. The motion handling is decent, although it doesn't feel as fluid or responsive as other monitors with higher refresh rates.

Test Results
Design 7.0
Picture Quality 6.7
Motion 7.1
Inputs 9.1
Pros
  • Image remains accurate when viewed from up-close
  • Colors appear uniform
Cons
  • Blacks appear gray in the dark
  • Limited ergonomic adjustments

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7.0

Design

Curved : No
Curve radius : N/A
Weight (without stand)
:
27.6 lbs (12.5 kg)
Weight (with stand)
:
35.3 lbs (16.0 kg)

The design of the LG 43UD79-B is decent. The base of the stand is rectangular and does not resemble other LG monitors. It will give you a hard time to position it exactly as you want it as the ergonomics are almost non-existent. You will be better off VESA mounting it. On other aspects of the design, the built quality is good and you should have no issues with it.

Stand
Width
:
13.3" (33.8 cm)
Depth
:
10.4" (26.4 cm)

The stand is sturdy and supports the monitor well. It has a fairly large footprint for the monitor's size, but this shouldn't be a problem on most tables.

1.7 Ergonomics
Height Adjustment
:
N/A
Switch portrait/landscape : No
Swivel Range : N/A
Tilt Range : -10° to 5°

Terrible ergonomics on the LG 43UD79 monitor. Unless you VESA mount it you will have almost no freedom in adjusting it.

Back
Wall Mount : VESA 200x200

The back of the 43" LG 43UD79-B monitor looks good. There is a VESA mount for attaching it to a stand (something we recommend you do if you wish to have any positioning adjustment capability). All of the inputs are pointing downwards on the center of the back of the monitor, and the rear of the stand provides a small passage for cable management.

Borders
Borders
:
0.6" (1.5 cm)

The borders have an average thickness and look good in their matte finish.

Thickness
Thickness (with stand)
:
7.8" (19.8 cm)
Thickness (without stand)
:
2.8" (7.1 cm)

This LG monitor is quite thick which is understandable for its size.

7.0 Build Quality

The build quality is good with no gaps or loose ends. The monitor frame is almost entirely plastic, and feels good.

6.7

Picture Quality

The picture quality of the LG 43UD79 is decent. It has an IPS panel that will not give you deep blacks in dark rooms but on the other hand, the monitor has good viewing angles and you will not have any uniformity issues on the edges if you sit close to this large size monitor. It has decent brightness and good reflection handling so placing it in average-lit environments is best. The gray uniformity is also good so you are unlikely to notice major clouding when browsing the web. Finally, it has a wide color gamut and very good color accuracy.

5.7 Contrast
Native Contrast
:
859 : 1
Contrast with local dimming
:
N/A

The monitor has a disappointing contrast ratio. The LG 43UD79 is not a monitor for use in a dark room as it can't really reproduce deep blacks. However, this should not be an issue for a brighter room and is on par with other IPS monitors.

0 Local Dimming
Local Dimming
:
No
Backlight
:
Direct

The LG 43UD79-B does not have a local dimming feature. The video is for reference only.

7.2 SDR Peak Brightness
SDR Real Scene
:
262 cd/m²
SDR Peak 2% Window
:
292 cd/m²
SDR Peak 10% Window
:
288 cd/m²
SDR Peak 25% Window
:
288 cd/m²
SDR Peak 50% Window
:
287 cd/m²
SDR Peak 100% Window
:
287 cd/m²
SDR Sustained 2% Window
:
287 cd/m²
SDR Sustained 10% Window
:
282 cd/m²
SDR Sustained 25% Window
:
283 cd/m²
SDR Sustained 50% Window
:
283 cd/m²
SDR Sustained 100% Window
:
283 cd/m²
SDR ABL
:
0.001

The SDR peak brightness of the monitor is decent. The LG 43UD79-B manages to keep a stable level of brightness no matter how much area of the screen the white square covers, and this is great. This is good for consistent brightness levels as you change between windows.

0 HDR Peak Brightness
HDR Real Scene
:
N/A
HDR Peak 2% Window
:
N/A
HDR Peak 10% Window
:
N/A
HDR Peak 25% Window
:
N/A
HDR Peak 50% Window
:
N/A
HDR Peak 100% Window
:
N/A
HDR Sustained 2% Window
:
N/A
HDR Sustained 10% Window
:
N/A
HDR Sustained 25% Window
:
N/A
HDR Sustained 50% Window
:
N/A
HDR Sustained 100% Window
:
N/A
HDR ABL
:
N/A

HDR is not supported.

7.4 Horizontal Viewing Angle
Color Shift from Left
:
38 °
Color Shift from Right
:
42 °
Brightness from Left
:
48 °
Brightness from Right
:
51 °
Black Level from Left
:
75 °
Black Level from Right
:
75 °
Curve Radius : N/A

Decent horizontal viewing angles on this IPS panel LG 43UD79-B monitor. The image remains accurate for relatively large angles from the center, and this is great.

8.4 Vertical Viewing Angle
Color Shift from Below
:
30 °
Color Shift from Above
:
33 °
Brightness from Below
:
37 °
Brightness from Above
:
38 °
Black Level from Below
:
75 °
Black Level from Above
:
75 °

The vertical viewing angles of the LG 43UD79 are very good. They will not cause any uniformity issues even when you view the monitor from up close.

7.6 Gray Uniformity
50% Std. Dev.
:
4.668 %
50% DSE
:
0.163 %
5% Std. Dev.
:
0.544 %
5% DSE
:
0.063 %

The gray uniformity of the LG monitor is good. There is a little clouding and some dirty screen effect present when browsing the web, but most people won't notice it.

3.8 Black Uniformity
Native Std. Dev.
:
3.459 %
Std. Dev. w/ L.D.
:
N/A

The black uniformity is very bad. In the intentionally overexposed test image above, you can observe the clouding that forms on either side of the screen. This will not look as severe in person.

8.3 Pre Calibration
Picture Mode
:
Dark Room 1
Luminance
:
131 cd/m²
Luminance Settings
:
35
Contrast Setting
:
70
RGB controls
:
N/A
Color Temperature
:
6588 K
White Balance dE
:
1.88
Color dE
:
2.56
Gamma
:
2.26

The out-of-the-box color accuracy of this monitor is very good. The best out of the box settings were obtained with the Dark Room 1 picture mode. With these settings, the white balance dE was well below our target of 3, and the color dE was at 2.56. Gamma was slightly higher than our target of 2.2 and color temperature was almost at our target of 6500K. All these mean that very few people will notice color inaccuracies.

9.5 Post Calibration
Picture Mode
:
Custom
Luminance
:
101 cd/m²
Luminance Settings
:
16
Contrast Setting
:
70
RGB Controls
:
58-42-25
Color Temperature
:
6424 K
White Balance dE
:
0.53
Color dE
:
1.01
Gamma
:
2.18

The post calibration color accuracy of the LG 43UD79-B is excellent. We changed the picture mode to Custom and set the RGB colors to 58-42-25, the Luminance setting to 16 and the Contrast to 70. This gave us the results that you see above which are excellent in terms of color accuracy.

You can download our ICC profile calibration here.

8.4 SDR Color Gamut
sRGB xy
:
95.0 %
Adobe RGB xy
:
73.1 %

sRGB picture mode tested: Custom
Adobe RGB picture mode tested: Photo

This LG 43UD79-B monitor has a great coverage of the s.RGB colorspace that is used in most applications. However, the coverage of the wider Adobe is limited and probably won't be enough for users that want to edit for professional graphics or print applications.

7.8 SDR Color Volume
sRGB in ICtCp
:
79.8 %
Adobe RGB in ICtCp
:
76.3 %

sRGB picture mode tested: Custom
Adobe RGB picture mode tested: Photo

The color volume of this monitor is very good. However, it's disappointing contrast does not allow it to display dark shades of colors well.

0 HDR Color Gamut
Wide Color Gamut
:
No
DCI P3 xy
:
N/A
Rec. 2020 xy
:
N/A

HDR is not supported.

0 HDR Color Volume
DCI-P3 in ICtCp
:
N/A
Rec. 2020 in ICtCp
:
N/A

HDR is not supported.

10 Image Retention
IR after 0 min recovery
:
0.00 %
IR after 2 min recovery
:
0.00 %
IR after 4 min recovery
:
0.00 %
IR after 6 min recovery
:
0.00 %
IR after 8 min recovery
:
0.00 %
IR after 10 min recovery
:
0.00 %

A perfect result on our image retention test, as no retention was measured even right after the bright 10 minutes static scene. This is at par with the other IPS panel monitors, like the LG 32UD59-B and an improvement over the 27UD68P-B.

9.3 Gradient
Color Depth
:
10 Bit

The LG 43UD79 does a remarkable job at displaying the gradient test image. There is almost no banding visible. As this monitor supports 10-bit input, no banding generally seen on 8-bit monitors is visible. Overall, this is an excellent result.

9.9 Color Bleed
Pixel row error
:
0.011 %
Pixel column error
:
0.010 %

Almost a perfect score in color bleed. Nearby colors are not affected by large uniform shades and this is good for accuracy.

7.5 Reflections

The LG 43UD79-B is good at handling reflections. Its light matte coating reduces the intensity of direct reflections and diffuses them across the screen. You should not have any issues unless the room is very bright.

7.1

Motion

The LG 43UD59-B has decent motion handling. It has a fast response time and that is good for fast moving content like first-person shooters, but the monitor does not support any of the advanced gaming features like variable refresh rate to avoid tearing, and it only has 60Hz refresh rate.

8.1 Motion Blur
80% Response Time
:
6.6 ms
100% Response Time
:
14.8 ms
Best Overdrive Setting
:
Normal

Response Time Off
Response Time Slow
Response Time Normal
Response Time Fast

The response time on the LG 43UD79-B is great, which is good for fast moving content like first-person shooters. The Response Time Normal overdrive setting is the most balanced; the Fast setting has a faster 80% response time, but since it adds a lot of overshoot its 100% response time was noticeably longer.

7.5 Image Flicker
Flicker-free : No
PWM Dimming Frequency
:
0 Hz
Black Frame Insertion (BFI)
:
No
BFI Maximum Frequency
:
N/A
BFI Minimum Frequency
:
N/A

This LG 43UD79-B has no visible flicker in its backlight as it dims, which is great.We did measure some flicker with our photodiode tool, but this will not be visible in person. This lack of visible flicker makes motion look smoother.

There is no Black Frame Insertion option that helps clear up blur, on this monitor.

6.7 Refresh Rate
Native
:
60 Hz
Factory Overclock
:
N/A
Variable Refresh Rate
:
No
G-SYNC Compatible
:
No
VRR Maximum
:
N/A
VRR Minimum
:
N/A
VRR Maximum With OC
:
N/A
VRR Supported Connectors : N/A

Mediocre refresh rate results. This monitor only supports a refresh rate of 60Hz, and has no variable refresh rate option to smooth out tearing.

9.1

Inputs

The LG 43UD79-B is a large size monitor with native 4k UHD support. It has a low input lag that will please gamers and has sockets for a variety of inputs.

8.9 Input Lag
Native Resolution
:
9.6 ms
Non-Native Res @ Native Refresh
:
9.9 ms
Native Resolution @ 60 Hz
:
9.6 ms
Variable Refresh Rate
:
N/A
10 bit HDR
:
N/A
Black Frame Insertion (BFI)
:
N/A

The input lag of the LG 43UD79-B is excellent and will keep most satisfied except maybe the most competitive e-sports gamers. Many 60Hz monitors have similar input lag, like the such as the LG 32UD59-B or the Dell U2715H. Other 144Hz monitors like the Samsung CHG70 have lower input lag due to their higher refresh rates.

9.4 Resolution and Size
Native Resolution : 3840 x 2160
Aspect Ratio : 16:9
Megapixels : 8.3 MP
Pixel Density : 104 PPI
Screen Diagonal : 42.5 inches
Screen Area : 770 sq inches

This LG 43UD79 has an excellent resolution for its 43" size. It is a pure 4k UHD monitor that has a high pixel per inch density and it is hard to spot individual pixels. The size is great for multitasking.

Inputs

All the inputs are pointing downwards.

Total Inputs
DisplayPort : 1 (DP 1.2)
Mini DisplayPort : No
HDMI : 2 (HDMI 2.0), 2 (HDMI 1.4)
DVI : No
VGA : No
DisplayPort Out : No
USB : 2 (USB 3.0)
USB C : 1 (DisplayPort Alternate Mode)
Analog Audio Out 3.5mm : 1
Microphone In 3.5mm : No
Digital Optical Audio Out : No
Analog Audio Out RCA : No
Power Supply : Internal

HDMI 1/2 only support 4K@30Hz (HDMI 1.4).

HDMI 3/4 can support 4K@60Hz (HDMI 2.0).

USB port 1 supports fast charging when the Quick Charge setting is enabled.

Features

The LG 43UD79-B has some amazing features like the Picture-In-Picture (PIP) or even Picture-Beside-Picture (PBP), that allow you to use the large size of the monitor to its full extent. This monitor also has speakers which can get very loud and sound better than the average monitor speakers even though they lack some bass.

Additional Features
Speakers
:
Yes
HDR10 : No
Multiple input display
:
PIP + PBP

Some major features of the LG 43UD79-B are the Picture-In-Picture (PIP) and Picture-Beside-Picture (PBP) modes, which share the screen between up to two different inputs (PIP) or four inputs (PBP). This way, the 43UD79-B can act as up to four 1080p monitors in PBP. The display area of the Sub input can be adjusted as well as its transparency in the PIP mode.

The monitor can enable fast charging on USB port 1 by activating the Quick Charge setting.

The speakers can get considerably loud during playback. Even though the speakers lack some bass, which is usual for monitor speakers, they produce a clear sound that will satisfy most people.

On-Screen Display (OSD)

The on-screen display is well-organized, quite intuitive and easy to use.

Controls

There is a small joystick nub under the center of the screen which controls the on-screen display and also acts as the power button. This way of navigating the OSD is very intuitive and is better than the four button scheme present on most monitors. This joystick is used on many other LG monitors like the 27UD58-B, as well as on some Samsung monitors like the CHG90.

In The Box

  • Manual and drivers
  • Power cable
  • DisplayPort cable
  • HDMI cable
  • Remote
  • Batteries
  • USB-A to USB-C adapter

Differences between Sizes and Variants

We tested the 43" model (43UD79-B). However, variants of the monitor exist in 27" (27UD58-B) and 32" (32UD59-B). It is also closely related to the 2018 model 32UD60-B, and HDR model 32UD99-W.

If someone comes across a different type of panel or if their 43UD79-B doesn't correspond to our review, let us know and we will update the review. Note that some tests such as the gray uniformity may vary between individual units.

Model Size Refresh rate Year Notes
27UD58-B 27" 60Hz 2016 Black variant
32UD59-B 32" 60Hz 2017 Black variant
32UD60-B 32" 60Hz 2018 Black variant
32UD99-W 32" 60Hz 2017 White variant. Supports HDR10
43UD79-B 43" 60Hz 2017 Black variant

Compared to other Monitors

Left: Dell U3417W. Middle: LG 43UD79-B. Right: LG 32UD59-B.
Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The LG 43UD79-B is a decent monitor for most usages. It has a native 4k resolution and its large size and good viewing angles make it a good choice for working with colleagues. See our recommendations for the best 4k monitors, the best 4k gaming monitors, and the best PC gaming monitors.

Philips Momentum 436M6VBPAB
SEE PRICE
Amazon.com

The Philips 436M6VBPAB and the LG 43UD79-B use different panel types, each with their strengths and weaknesses. The Philips monitor uses a VA panel and looks great in a dark room, but the image degrades when viewed at an angle. The LG has an IPS panel, which doesn't look as good in a dark room but remains accurate when viewed at an angle. Besides these differences, the Philips 436M6VBPAB supports HDR, is a lot brighter, and supports FreeSync.

Dell U3417W
SEE PRICE
Newegg.com

The Dell U3417W is a bit better than the LG 43UD79. The U3417W is a bit brighter and has more vibrant colors due to the better color volume. The U3417W has better ergonomics and it's easier to adjust to a comfortable position, whereas the LG 43UD79 has very limited adjustments. It has lower input lag and the larger screen provides more screen real estate, which is good for productivity.

Dell U4919DW
SEE PRICE
Amazon.com

The Dell U4919DW is a bit better than the LG 43UD79. The stand on the Dell U4919DW has an adjustable height, and wider tilt range, whereas the LG 43UD79 has a small tilt adjustment and no height adjustment. The Dell is also completely flicker-free and a bit brighter, which is great.

LG 32UD59-B
SEE PRICE
Amazon.com

The LG 32UD59-B is better than the LG 43UD79, unless the larger screen is really important to you. The LG 32UD59-B has better ergonomics and can be more easily adjusted to a comfortable viewing position than the 43UD79, which has very little adjustments. The LG 32UD59-B has better motion handling, as the faster refresh rate produces less motion blur. The 43UD79 has wider viewing angles, which is important for a screen this size.

Dell U2717D
SEE PRICE
Newegg.com

The Dell U2717D and the LG 43UD79 are very similar, and the best one will depend on your needs. For productivity, the LG 43UD79 offers more screen real estate, making it easier to see more and do more at the same time. The Dell U2717D offers better ergonomics that can be easily adjusted for the optimal viewing position, which is great if you have multiple users.

Dell U2715H
SEE PRICE
Amazon.com

The Dell U2715H is better than the LG 43UD79, unless you want a large screen. The Dell U2715H has much better ergonomics and can easily be adjusted for an optimal viewing position, great if multiple people will be using the monitor. The LG 43UD79 has a much larger screen and higher native resolution, so you can see more details and it is easier to multitask.

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7.2 Mixed Usage

The LG 43UD79 is a decent monitor for mixed usage. It has good viewing angles that make suitable for a wide room, but blacks are not deep and it is not great in dim environments. It has a great low input lag and this is great for gaming. It has Picture-In-Picture and Picture-Beside-Picture features that can make great use of its large size.

7.5 Office

This is a decent monitor for office usage. It is large in size with good viewing angles that will allow you to comfortably work with your colleagues. You will have some trouble positioning where and how you want it, but once you do it will deliver very good performance.

7.4 Gaming

This is a decent monitor for gaming. It has an excellent low input lag that makes it very responsive, and its large size and 4k UHD resolution will allow you to enjoy more detail. On the other hand, it only supports 60Hz refresh rate and lacks more advanced gaming features Variable Refresh Rate that helps remove tearing. Overall you will enjoy gaming with this monitor if you overcome the difficulty in positioning it to your liking.

7.1 Multimedia

The LG 49UD79 is a decent monitor for multimedia usage. It has good viewing angles and its large size and UHD resolution will allow you to enjoy various types of multimedia content well. It will perform better in an average lit room rather than a dark one as it handles reflections well, and blacks will not look grayish as in the dark room.

7.0 Media Creation

This is a decent monitor for media creation. Its large size and excellent resolution will are great tools for those who need the extra screen space to work. Unfortunately, the coverage of the wider Adobe RBG color space is not as good as most professional would want it for their job.

5.2 HDR Gaming

This monitor doesn't support HDR. This is common for most monitors, as HDR is a relatively new feature for PCs. For an HDR monitor, see the Samsung CHG70.

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