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Reviewed on May 27, 2019

LG UM7300
TV REVIEW

Usage Ratings - Version 1.3
7.6
Mixed Usage
Value for price beaten by
: Hisense H8F
6.3
Movies
8.1
TV Shows
7.9
Sports
8.4
Video Games
6.2
HDR Movies
7.7
HDR Gaming
8.5
PC Monitor
Type : LED
Sub-Type
:
IPS
Resolution : 4k

The LG UM7300PUA is a good 4k TV with a wide viewing angle, excellent low input lag, and an excellent response time. It has decent peak brightness in SDR, and it has excellent reflection handling, making it a great choice for a wide seating area in a brighter room. Unfortunately, like the majority of IPS TVs, it doesn't look as good in a dark room, as it can't produce deep, uniform blacks. It also has very limited HDR support and doesn't support any dynamic HDR formats, like HDR10+ or Dolby Vision.

Test Results
Design 7.0
Picture Quality 7.2
Motion 7.2
Inputs 9.7
Sound Quality 6.1
Smart Features 8.2
Pros
  • Outstanding low input lag.
  • Image remains accurate when viewed at an angle.
Cons
  • Can't produce deep, uniform blacks.
  • HDR doesn't add much.

Check Price

43" 43UM7300
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49" 49UM7300
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55" 55UM7300
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65" 65UM7300
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Market Context

The UM7300 is LG's basic 4k model for 2019 for U.S. markets. It replaces the 2018 UK6300. There is a 2019 UM6300, but this is now a 1080p model. The main competitors for this model are the Sony X800G, the Samsung RU7100, and the Vizio V Series 2019.

7.0

Design

Curved : No

The LG UM7300 has a decent design. It looks very similar to last year's UK6300 and UK7700. The legs are very close to the sides of the TV, so it needs a large stand to support it if it isn't wall mounted. The stand supports the TV well, but does wobble a bit if nudged or if your floor isn't solid. It has decent build quality, and there are no obvious signs of concern, but it doesn't have the metal back of the UK7700. There is no cable management.

Stand

The stand supports the TV well, allowing only minimal wobble when nudged. Unfortunately, the stand is nearly the full width of the TV, so you'll need a large TV stand if it isn't wall-mounted.

Footprint of the 55" model: 44.5" x 9.1"

Back
Wall Mount : VESA 300x300

The back of the TV is very plain. Some of the connectors face directly out the back and may be difficult to access if wall-mounted. There is no integrated cable management.

Borders
Borders : 0.63" (1.6 cm)

The borders are thin and not very distracting.

Thickness
Max Thickness : 3.46" (8.8 cm)

The LG UM7300PUA is slightly thicker than the UK6300. It sticks out quite a bit when wall-mounted.

Temperature
Maximum Temperature
:
95 °F (35 °C)
Average Temperature
:
91 °F (33 °C)
7.0 Build Quality

The LG 55UM7300PUA has decent build quality. It wobbles a bit less than the UK6300, and has a nicer frame, but doesn't have the metal back found on the UK7700.

7.2

Picture Quality

The LG UM7300PUA delivers decent overall picture quality. Like most IPS TVs, it has a mediocre contrast ratio, and isn't as well-suited for dark room viewing. This model doesn't have a local dimming feature, but has decent black uniformity. The UM7300 has decent peak brightness in SDR, but in HDR it can't get bright enough for small highlights to really stand out. It has decent viewing angles and excellent reflection handling. Unlike the UK6300, this TV doesn't use an RGBW pixel structure, and there is no subpixel dithering, which is great.

6.2 Contrast
Native Contrast
:
1105 : 1
Contrast with local dimming
:
N/A

Like most IPS TVs, the LG UM7300 has a mediocre contrast ratio, very similar to the UK6300. Blacks look slightly grayish in a dark room. Unfortunately, this TV lacks a local dimming feature to improve dark room performance.

The 50" model is expected to have a VA panel, and will have a much better contrast ratio.

0 Local Dimming
Local Dimming
:
No
Backlight
:
Direct

Unfortunately, this TV does not have a local dimming feature. The above video is for reference only.

7.4 SDR Peak Brightness
SDR Real Scene Peak Brightness
:
277 cd/m²
SDR Peak 2% Window
:
302 cd/m²
SDR Peak 10% Window
:
304 cd/m²
SDR Peak 25% Window
:
304 cd/m²
SDR Peak 50% Window
:
304 cd/m²
SDR Peak 100% Window
:
304 cd/m²
SDR Sustained 2% Window
:
301 cd/m²
SDR Sustained 10% Window
:
304 cd/m²
SDR Sustained 25% Window
:
304 cd/m²
SDR Sustained 50% Window
:
304 cd/m²
SDR Sustained 100% Window
:
304 cd/m²
SDR ABL
:
0.001

Decent peak brightness, good enough for most decently-lit rooms. The 55UM7300PUA is significantly brighter than the UK6300 and a bit brighter than the UK7700, which is great. There is very little variation in brightness with different content, which is great.

We measured the peak brightness with the 'ISF Expert (Dark Room)' Picture Mode, as it is the most accurate. Different picture modes and color temperatures can produce slightly different results.

If image accuracy isn't as important to you, the 'Vivid' Picture Mode delivers a slightly brighter image, reaching a peak of 402 cd/m² with a 10% window.

6.3 HDR Peak Brightness
HDR Real Scene Peak Brightness
:
322 cd/m²
HDR Peak 2% Window
:
261 cd/m²
HDR Peak 10% Window
:
360 cd/m²
HDR Peak 25% Window
:
359 cd/m²
HDR Peak 50% Window
:
359 cd/m²
HDR Peak 100% Window
:
359 cd/m²
HDR Sustained 2% Window
:
259 cd/m²
HDR Sustained 10% Window
:
359 cd/m²
HDR Sustained 25% Window
:
359 cd/m²
HDR Sustained 50% Window
:
359 cd/m²
HDR Sustained 100% Window
:
359 cd/m²
HDR ABL
:
0.022

Mediocre HDR peak brightness, too dim to show off small specular highlights in some scenes. It is slightly brighter than the UK6300 and UK7700.

We measured the HDR peak brightness with the 'Cinema' Picture Mode before calibrating. Different picture modes and color temperatures can produce slightly different results.

If image accuracy isn't as important to you, the 'Vivid' Picture Mode delivers a slightly brighter image, reaching a peak of about 410 cd/m² with a 10% window.

7.6 Gray Uniformity
50% Std. Dev.
:
3.857 %
50% DSE
:
0.179 %
5% Std. Dev.
:
0.373 %
5% DSE
:
0.068 %

The UM7300 has good gray uniformity. There is some vignetting, but only slight dirty screen effect, which is great.

7.0 Viewing Angle
Color Washout
:
26 °
Color Shift
:
61 °
Brightness Loss
:
29 °
Black Level Raise
:
70 °
Gamma Shift
:
28 °

The LG UM7300PUA has a decent viewing angle, but it isn't as good as most IPS TVs. Colors don't shift very much at an angle, but they wash out at moderate angles. The black levels remain relatively flat at moderate angles, but at wider angles they increase, causing the image to appear washed out.

The 50" model is expected to have a VA panel, and will have worse viewing angles.

6.7 Black Uniformity
Native Std. Dev.
:
1.557 %
Std. Dev. w/ L.D.
:
N/A

Decent black uniformity, but there is noticeable backlight bleed, which is typical for IPS TVs. Unfortunately, there is no local dimming feature, which could improve black uniformity.

The 50" model is expected to have a VA panel, and will have a much better contrast ratio, and likely has better black uniformity.

8.7 Reflections
Screen Finish
:
Semi-gloss
Total Reflections
:
3.2 %
Indirect Reflections
:
0.6 %

The LG 55UM7300PUA has excellent reflection handling, very similar to the LG UK7700. The semi-gloss finish diffuses reflections across the screen, without the purple tint seen on high-end TVs.

6.8 Pre Calibration
White Balance dE
:
4.00
Color dE
:
3.11
Gamma
:
2.37
Color Temperature
:
5939 K
Picture Mode
:
Expert (Dark Room)
Color Temp Setting
:
Warm 2
Gamma Setting
:
2.2

With our pre-calibration settings, this TV has decent color accuracy, but gamma doesn't follow the target of 2.2 at all, and most scenes appear darker than they should.

9.6 Post Calibration
White Balance dE
:
0.23
Color dE
:
1.14
Gamma
:
2.20
Color Temperature
:
6541 K
White Balance Calibration
:
22 point
Color Calibration
:
Yes
Auto-Calibration Function
:
No

After calibration, the UM7300 has excellent accuracy. The white balance is almost perfect, with only a slight inaccuracy in pure whites. Gamma follows our target of 2.2 almost perfectly. There are still a few color inaccuracies, especially in highly saturated blues, but most people won't notice it.

You can see our recommended settings here.

8.0 480p Input

Older content, like DVDs, looks great, with no obvious issues or upscaling artifacts.

8.0 720p Input

720p content, including most cable TV stations, looks great, with no obvious issues.

9.0 1080p Input

1080p content, like Blu-rays and older consoles, looks almost as good as native 4k content.

10 4k Input

Unlike the UK6300, the LG UM7300 does not use an RGBW pixel structure, and 4k content is displayed with no issues.

6.9 Color Gamut
Wide Color Gamut
:
No
DCI P3 xy
:
77.10 %
DCI P3 uv
:
82.85 %
Rec 2020 xy
:
55.39 %
Rec 2020 uv
:
60.41 %

The LG UM7300PUA has a decent color gamut, but it can't display a wide color gamut. The 'Expert (Dark Room)' EOTF (above) follows the target PQ curve almost perfectly, until it rolls off near the TV's peak brightness. The Game mode EOTF is almost identical.

If you find HDR too dim, unfortunately, there isn't much you can do on this TV. Setting Dynamic Contrast to 'High' increases the brightness of bright scenes, and helps a bit in extremely dark scenes. See our full recommendation here.

5.7 Color Volume
Normalized DCI P3 Coverage ITP
:
65.1 %
10,000 cd/m² DCI P3 Coverage ITP
:
24.5 %
Normalized Rec 2020 Coverage ITP
:
48.4 %
10,000 cd/m² Rec 2020 Coverage ITP
:
18.2 %

Disappointing color volume. This TV can't produce very bright colors, and can't produce dark saturated colors, due to the mediocre contrast ratio. These results are better than the UK6300 this TV replaces, but not as good as the UK7700.

7.8 Gradient
Color Depth
:
10 Bit
Red (Std. Dev.)
:
0.103 dE
Green (Std. Dev.)
:
0.129 dE
Blue (Std. Dev.)
:
0.091 dE
Gray (Std. Dev.)
:
0.139 dE

Good gradient performance overall, but there is noticeable banding in almost all areas. If banding bothers you, the Smooth Gradation feature can remove banding, but also causes a loss of some fine details in some scenes.

9.9 Temporary Image Retention
IR after 0 min recovery
:
0.05 %
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 %

The TV shows some minor signs of temporary image retention, but it disappears almost immediately.

10 Permanent Burn-In Risk
Permanent Burn-In Risk
:
No

Although some IPS panels can suffer from temporary image retention, this doesn't appear to be permanent as the IPS panel in our long-term test appear immune.

Pixels
7.2

Motion

The LG UM7300 has decent motion handling. It has a great response time, producing clear motion that has only a short blur trail behind it. The backlight flickers at 120Hz at any setting, which may bother some people, and causes duplications in moving objects. It doesn't have an optional black frame insertion feature, and doesn't support any of the variable refresh rate technologies.

8.6 Response Time
80% Response Time
:
5.6 ms
100% Response Time
:
12.4 ms

The UM7300 has an excellent response time, with very little overshoot, which is great. It is a bit faster than UK7700, and quite a bit faster than the UK6300.

4.0 Flicker-Free
Flicker-Free
:
No
PWM Dimming Frequency
:
120 Hz

The backlight flickers at 120Hz regardless of Backlight setting, which may bother some people. This low flicker frequency does help to clear up motion a bit, but causes noticeable duplications, as seen in our Motion Blur photo.

5.4 Black Frame Insertion (BFI)
Optional BFI
:
No
Min Flicker for 60 fps
:
120 Hz
60 Hz for 60 fps
:
No
120 Hz for 120 fps
:
N/A
Min Flicker for 60 fps in Game Mode
:
120 Hz

The LG UM7300PUA does not have an optional Black Frame Insertion feature. The backlight flickers at 120Hz in any mode, which does help clear up motion, but causes some noticeable duplications in motion, as seen in our Motion Blur photo.

7.0 Motion Interpolation
Motion Interpolation (30 fps)
:
Yes
Motion Interpolation (60 fps)
:
No

There is an optional motion interpolation feature, but as it is a 60Hz panel, it can only interpolate up to 60 fps. Like the majority of TVs, the UM7300 does its best to interpolate fast action, but when it can't keep up it stops interpolating, which can be distracting due to the sudden change in refresh rate.

Learn more about motion interpolation, and how to enable it on the UM7300, here.

7.2 Stutter
Frame Hold Time @ 24 fps
:
29.3 ms
Frame Hold Time @ 60 fps
:
4.3 ms

Due to the fast response time, low frame rate content, like movies, does appear to stutter at times. This is especially noticeable in wide panning shots. You can reduce the effects of stutter by enabling motion interpolation.

7.8 24p Judder
Judder-Free 24p
:
Yes
Judder-Free 24p via 60p
:
No
Judder-Free 24p via 60i
:
No
Judder-Free 24p via Native Apps
:
Yes

The LG UM7300 can remove judder from true 24p sources, like a Blu-ray player or the native apps, but can't remove judder from sources that output at 60Hz, like a cable box.

See here for our recommended settings for judder removal.

0 Variable Refresh Rate
Native Refresh Rate
:
60 Hz
Variable Refresh Rate
:
No
4k VRR Maximum
:
N/A
4k VRR Minimum
:
N/A
1080p VRR Maximum
:
N/A
1080p VRR Minimum
:
N/A
1440p VRR Maximum
:
N/A
1440p VRR Minimum
:
N/A
VRR Supported Connectors
:
N/A

The LG UM7300 has a simple 60Hz refresh rate, which may disappoint some people. It does not support any of the variable refresh rate technologies, like FreeSync or HDMI-Forum's VRR.

9.7

Inputs

The LG UM7300 has outstanding low input lag, and it supports all of the common 60Hz input formats. It can also display chroma 4:4:4 properly with any resolution, but only in 'PC' mode. It has a decent selection of inputs, but has fewer HDMI inputs than more expensive models. Unfortunately, this model only supports HDR10, and does not support any dynamic HDR formats, like HDR10+ or Dolby Vision.

9.9 Input Lag
1080p @ 60 Hz
:
11.6 ms
1080p @ 60 Hz Outside Game Mode
:
111.4 ms
1440p @ 60 Hz
:
11.5 ms
4k @ 60 Hz
:
10.8 ms
4k @ 60 Hz + 10 bit HDR
:
10.7 ms
4k @ 60 Hz @ 4:4:4
:
10.9 ms
4k @ 60 Hz Outside Game Mode
:
111.0 ms
4k @ 60 Hz With Interpolation
:
111.7 ms
8k @ 60 Hz
:
N/A
1080p @ 120 Hz
:
N/A
1440p @ 120 Hz
:
N/A
4k @ 120 Hz
:
N/A
1080p with Variable Refresh Rate
:
N/A
1440p with VRR
:
N/A
4k with VRR
:
N/A
8k with VRR
:
N/A
Auto Low Latency Mode (ALLM)
:
Yes

Outstanding low input lag, almost as low as the best 60Hz gaming monitors. The UM7300 has very similar low input lag with almost any supported input signal, as long as 'Game' mode is enabled. New this year is support for auto low latency mode, as long as Instant Game Response is enabled for the HDMI port in use.

See our recommended gaming settings here.

8.3 Supported Resolutions
1080p @ 60 Hz @ 4:4:4
:
Yes
1080p @ 120 Hz
:
No
1440p @ 60 Hz
:
Yes (native support)
1440p @ 120 Hz
:
No
4k @ 60 Hz
:
Yes
4k @ 60 Hz @ 4:4:4
:
Yes
4k @ 120 Hz
:
No
8k @ 30 Hz or 24 Hz
:
No
8k @ 60 Hz
:
No

The LG 55UM7300PUA supports all of the common 60Hz input resolutions, and can display all of them with proper 4:4:4 chroma, so that text looks the way it should, as long as the input icon is changed to 'PC' from the Home Dashboard.

Some of the high bandwidth resolutions, like 4k @ 60Hz + HDR, require the HDMI ULTRA HD Deep Color setting to be enabled for the port in use.

Input Photos
Total Inputs
HDMI : 3
USB : 2
Digital Optical Audio Out : 1
Analog Audio Out 3.5mm : 0
Analog Audio Out RCA : 0
Component In : 1 (shared)
Composite In : 1 (shared)
Tuner (Cable/Ant) : 1
Ethernet : 1
DisplayPort : 0
IR In : 0
SD/SDHC : 0
Inputs Specifications
HDR10
:
Yes
HDR10+
:
No
Dolby Vision
:
No
HLG
:
Yes
3D
:
No
HDMI 2.0 Full Bandwidth
:
Yes (HDMI 1,2,3)
HDMI 2.1
:
No
CEC : Yes
HDCP 2.2 : Yes (HDMI 1,2,3)
USB 3.0
:
No
Variable Analog Audio Out : No
Wi-Fi Support : Yes (2.4 GHz, 5 GHz)

This TV has 3 HDMI ports, all of which are HDMI 2.0 ports. It doesn't support any advanced HDR formats, like HDR10+ or Dolby Vision.

Audio Passthrough
ARC
:
Yes (HDMI 2)
eARC support
:
No
Dolby Atmos via TrueHD via eARC
:
No
DTS:X via DTS-HD MA via eARC
:
No
5.1 Dolby Digital via ARC
:
Yes
5.1 DTS via ARC
:
Yes
5.1 Dolby Digital via Optical
:
Yes
5.1 DTS via Optical
:
Yes

The LG 55UM7300PUA can pass through both DTS and Dolby Digital, which is great, but it doesn't support eARC for higher quality audio formats.

6.1

Sound Quality

The LG UM7300PUA has mediocre sound. It can't get very loud, and the bass can't produce any thump or rumble, and has very little body. It has a well balanced sound for clear dialog, but it lacks some airiness. For a better sound, a dedicated speaker setup or soundbars is recommended.

5.9 Frequency Response
Low-Frequency Extension
:
119.87 Hz
Std. Dev. @ 70
:
2.95 dB
Std. Dev. @ 80
:
3.40 dB
Std. Dev. @ Max
:
6.65 dB
Max
:
85.5 dB SPL
Dynamic Range Compression
:
4.66 dB

The LG UM7300 has a disappointing frequency response. The low frequency extension (LFE) is at about 120Hz, which is bad, and results in a bass that can't produce and thump or rumble, and doesn't have much body or punch. Above the LFE the frequency response is well balanced, which results in clear dialog. Although this TV is loud enough for quiet environments, if you have a lot of ambient noise it might not be enough.

6.7 Distortion
Weighted THD @ 80
:
0.106
Weighted THD @ Max
:
0.600
IMD @ 80
:
3.00 %
IMD @ Max
:
18.70 %

The distortion performance of the LG UM7300 is decent, similar to the UK6300. The total amount of harmonic distortion is within limits, and it doesn't increase that much at max volume.

8.2

Smart Features

Smart OS : WebOS
Version : 4.5

The LG UM7300 has great smart features. It runs the same version of LG's WebOS interface as their high-end models, but some features aren't quite as advanced. The interface is very polished, but some people might find it a bit complicated to use at first. It has the same great remote as last year's models, and also supports LG's unique virtual pointer system, which makes the interface very easy to navigate. LG's content store has an outstanding selection of apps, one of the widest available.

8.5 Interface
Ease of Use
:
Easy
Smoothness
:
Average
Time Taken to Select YouTube
:
2 s
Time Taken to Change Backlight
:
7 s
Advanced Options
:
Many

The interface is easy to use, and it is very quick to access most features or change the settings. The interface itself is smooth, with no obvious issues when browsing, but it sometimes hangs a bit when launching apps.

0 Ad-Free
Ads
:
Yes
Opt-out
:
No
Suggested Content in Home
:
Yes
Opt-out of Suggested Content
:
No

Unfortunately, there are occasional ads in the content store and on the home screen. The ads on the home screen can be removed by disabling the Home Promotion setting, but the ads in the content store can't be removed.

8.0 Apps and Features
App Selection
:
Many
App Smoothness
:
Average
Cast Capable
:
Yes
USB Drive Playback
:
Yes
USB Drive HDR Playback
:
Yes
HDR in Netflix
:
Yes
HDR in YouTube
:
Yes

The 55UM7300PUA has the same great selection of apps as the rest of LG's lineup, which is great. Most of the popular streaming apps are pre-installed, and it also supports casting from your smart device.

9.0 Remote
Size
:
Large
Voice Control
:
Many Features
CEC Menu Control
:
Yes
Other Smart Features
:
Yes

The 55UM7300PUA has the same excellent remote found on LG's high-end TVs. Like the C9, it can now be programmed to work with almost any device, even if it doesn't support HDMI-CEC. The remote also allows you to control the TV with your voice, including searching within some apps.

7.0 Remote App
Acts as the Remote
:
Yes
Directly Launches Apps and Inputs
:
Both
Inputs Text in YouTube
:
No
Inputs Text in Netflix
:
No
Streams Device Files
:
Yes
Controls TV Settings
:
No
Voice Control
:
Limited Support

There is an available remote app for the TV, but it is very basic. It allows basic control of the TV, replacing the remote, but some of the smart TV functions are hidden, and may be difficult to find.

Through the remote app, you can also control the TV with your voice, but there are two separate options, which may be confusing. One option works as a speech-to-text, allowing you to input text into an app. The other option allows for direct control of the TV, like with the remote.

TV Controls

There is a single button located in the center of the TV under the LG logo. It allows for only basic control of the TV, including changing the inputs or channels, volume control, and power.

In The Box

  • Owner's manual
  • Remote control
  • Batteries
  • Cable management tie
  • User's guide for the remote control
  • Power cable (not shown)

Misc
Power Consumption : 50 W
Power Consumption (Max) : 114 W
Firmware : 03.50.21

Differences between Sizes and Variants

We tested the 55" LG UM7300 (55UM7300). For the most part, we expect our review to be valid for the 43" model (43UM7300), 49" model (49UM7300), and the 65" (65UM7300) model.

There is a 50" variant with a VA panel. We expect this model to have a much better native contrast and black uniformity, but the viewing angle won't be as good.

Size US Canada UK Panel Type
43" 43UM7300PUA 43UM7300AUE 43UM7390PLC IPS
49" 49UM7300PUA 49UM7300AUE 49UM7390PLC IPS
50" 50UM7300PUA 50UM7300AUE N/A VA
55" 55UM7300PUA 55UM7300AUE N/A IPS
65" 65UM7300PUA 65UM7300AUE N/A IPS

If someone comes across a different type of panel or if their LG UM7300 doesn't correspond to our review, let us know and we will update the review.

The 55UM7300 we reviewed was manufactured in March 2019.

Compared to other TVs

Top left: TCL S425(43S425). Bottom left: LG SM8600 (55SM8600). Middle: LG UM7300 (55UM7300). Top right: Vizio V Series 2019 (V505-G9). Bottom right: Samsung RU7100 (UN55RU7100). Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The LG UM7300 is a good TV for most uses. See our recommendations for the best TVs, the best smart TVs, and the best 4k TVs.

Samsung RU7100
43" 50" 55" 58" 65" 75"

The Samsung RU7100 and the LG UM7300 are similar, but they use different panel types, each with their own strengths and weaknesses. The LG UM7300 has an IPS panel, which remains accurate when viewed at an angle, but can't produce deep, uniform blacks. The Samsung RU7100 has a VA panel and looks much better in a dark room, but only when sitting directly in front, as the image degrades rapidly when viewed at an angle.

LG UK6300
43" 49" 50" 55" 65"

The LG UM7300 is much better than the LG UK6300. The UM7300 is much brighter than the UK6300, has better black uniformity, and has a faster response time. The UK6300 uses a less accurate RGBW pixel structure, which causes some noticeable artifacts with 4k content, whereas the UM7300 has a standard RGB pixel structure.

Samsung NU7100
40" 43" 50" 55" 58" 65" 75"

The Samsung NU7100 and the LG UM7300 use different panels, and the best one depends on your usage. The NU7100 is better-suited for dark-room viewing, sitting directly in front. The LG UM7300 is better suited for watching with the lights on and is a better choice for a wide seating area. The UM7300 has better motion handling overall, with a much faster response time, which is better for gaming or other 60p content.

LG B8 OLED
55" 65"

The LG B8 is much better than the LG UM7300, but they use different panels, and the B8 has a chance of permanent burn-in, which the UM7300 is immune to. The B8 has much better dark room performance, outstanding motion handling, and an even better viewing angle. The UM7300 has slightly less input lag, and it supports a 1440p input, which is great for gaming.

TCL 6 Series/R617 2018
55" 65" 75"

The TCL R617 and the LG UM7300 use different panel technologies, each with their strengths and weaknesses. The R617 is better for watching movies or gaming in a dark room, as it has much better contrast, a full array local dimming feature, and an optional black frame insertion feature. The UM7300, on the other hand, is better-suited for watching sports or TV shows in a bright room with wide seating.

Vizio V Series 2019
40" 43" 43" 50" 55" 55" 60" 65" 65" 70" 75"

The Vizio V Series 2019 and the LG UM7300 have different panel types, each with their own strengths and weaknesses. The V Series has a VA panel, which looks better in a dark room, as it delivers deep, uniform blacks. The UM7300 has an IPS panel, which doesn't look as good in a dark room, but the image remains accurate when viewed at an angle.

LG UK7700
55" 65"

The LG UM7300 is slightly better than the LG UK7700. The UM7300 is a bit brighter, and has better black uniformity. Unlike the UM7300, the UK7700 has a local dimming feature, but it isn't very effective anyway. The UK7700 has a slightly better design, with a full-metal back, and it has an additional HDMI input.

Hisense H8F
50" 55" 65"

The LG UM7300 and the Hisense H8F use different panel types, each with their own strengths and weaknesses. The H8F is better for watching movies or playing games in a dark room, but has worse motion handling. The LG looks better in a bright room, especially if you have a wide seating area, so it is a better choice for use as a PC monitor or for watching sports.

Sony X850G
55" 65" 75" 85"

The Sony X850G is a bit better than the LG UM7300. The X850G is a lot brighter, but has worse black uniformity. The backlight of the X850G is flicker-free, and it has an optional black frame insertion feature. Other than that, these two TVs perform almost identically.

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Conclusion
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7.6 Mixed Usage
The LG UM7300PUA is a good TV for most uses. It is best suited for a bright room, and is very good for watching sports in the afternoon or TV shows during the day. It doesn't look as good in a dark room, and although it supports HDR, this doesn't add much.
6.3 Movies
Mediocre TV for watching movies in a dark room. It can't produce deep, uniform blacks. Motion looks decent overall, as it has an excellent response time, but there are duplications in motion from the backlight flicker. It can remove judder from true 24p sources, but not from movies played from a 60Hz source, like a cable box.
8.1 TV Shows
Great TV for watching TV shows during the day. It has decent peak brightness with SDR content, and has excellent reflection handling, so you shouldn't have any issues in a decently-lit room. The image remains accurate when viewed at an angle. It has a great selection of apps, and most streaming channels are available.
7.9 Sports
This is a very good TV for watching most sports. It has wide viewing angles and excellent reflection handling, good for watching the big game with a group of friends. It has a fast response time, so there isn't much blur behind fast-moving objects, but there can be noticeable duplications in motion, which might bother some people.
8.4 Video Games
The LG UM7300 is a great TV for playing video games, especially for console gamers. It has outstanding low input lag, and an excellent response time. Unfortunately, it doesn't support any advanced gaming features, like FreeSync variable refresh rate technology.
6.2 HDR Movies
The LG UM7300PUA delivers a mediocre HDR movie experience. It can't get very bright in HDR, and can't display a wide color gamut. It also doesn't have a local dimming feature, and can't display deep, uniform blacks in a dark room.
7.7 HDR Gaming
This is a good TV for HDR gaming, mainly due to the gaming performance, as HDR doesn't add much on this TV. It has outstanding low input lag, and an excellent response time. Unfortunately, it isn't as well-suited for late-night gaming, but the wide viewing angles make it a great choice for couch co-op gaming with some friends.
8.5 PC Monitor