Notice: Your browser is not supported or outdated so some features of the site might not be available.
- Table of Contents
- Top
- Main Differences
- Market Context
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
LG UJ6300 vs LG UK6300
Side-by-Side Comparison
Products
LG UJ6300
LG UK6300
Tested using Methodology v1.2
Updated Sep 04, 2021 05:29 AM
SEE PRICE
Amazon.comTested using Methodology v1.5
Updated Aug 23, 2022 04:13 PM
SEE PRICE
Amazon.com
TypeLED
Sub-TypeIPS
Resolution"4k"
TypeLED
Sub-TypeIPS
Resolution"4k"
Variants
- 43UJ6300 (43")
- 49UJ6300 (49")
- 55UJ6300 (55")
- 65UJ6300 (65")
- 43UK6300 (43")
- 49UK6300 (49")
- 50UK6300 (50")
- 55UK6300 (55")
- 65UK6300 (65")
Our Verdict
LG UJ6300
LG UK6300
The LG UK6300 is slightly better than the LG UJ6300. The LG UK6300 is better for watching TV shows and sports as it can get a little brighter, whereas the LG UJ6300 has a marginally better native contrast ratio that gives it better blacks in dark rooms.
Check Price
43"
43UJ6300
Searching
Finding store43"
43UK6300
Searching
Finding store49"
49UJ6300
Searching
Finding store49"
49UK6300
Searching
Finding store50"
50"
50UK6300
Searching
Finding store55"
55UJ6300
Searching
Finding store55"
55UK6300
Searching
Finding store65"
65UJ6300
Searching
Finding store65"
65UK6300
Searching
Finding storeMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
7.1
6.4
Response Time
7.9
6.5
Full Comparison
Market Context
Design
Style
6.5
6.5
Design Picture
Curved
No
No
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 200x200
VESA 200x200
Borders
Borders Picture
Borders
0.79" (2.0 cm)
0.75" (1.9 cm)
Thickness
Thickness Picture
Max Thickness
3.23" (8.2 cm)
3.19" (8.1 cm)
Build Quality
6.0
6.0
Build quality picture
Temperature
Temperature picture
Maximum Temperature
95 °F (35 °C)
Average Temperature
91 °F (33 °C)
Picture Quality
Contrast
6.5
6.1
Checkerboard Picture
Native Contrast
1,314 : 1
1,096 : 1
Contrast with local dimming
N/A
N/A
Local Dimming
0.0
0.0
Local Dimming Video
Local Dimming
No
No
Backlight
Direct
Direct
SDR Peak Brightness
5.5
4.9
SDR Real Scene Peak Brightness
174 cd/m²
191 cd/m²
SDR Peak 2% Window
167 cd/m²
187 cd/m²
SDR Peak 10% Window
168 cd/m²
198 cd/m²
SDR Peak 25% Window
169 cd/m²
198 cd/m²
SDR Peak 50% Window
171 cd/m²
198 cd/m²
SDR Peak 100% Window
175 cd/m²
198 cd/m²
SDR Sustained 2% Window
167 cd/m²
186 cd/m²
SDR Sustained 10% Window
167 cd/m²
197 cd/m²
SDR Sustained 25% Window
168 cd/m²
198 cd/m²
SDR Sustained 50% Window
170 cd/m²
197 cd/m²
SDR Sustained 100% Window
174 cd/m²
197 cd/m²
SDR ABL
0.003
0.001
HDR Peak Brightness
6.1
5.3
HDR Real Scene Peak Brightness
297 cd/m²
296 cd/m²
HDR Peak 2% Window
319 cd/m²
223 cd/m²
HDR Peak 10% Window
319 cd/m²
315 cd/m²
HDR Peak 25% Window
318 cd/m²
313 cd/m²
HDR Peak 50% Window
318 cd/m²
312 cd/m²
HDR Peak 100% Window
318 cd/m²
311 cd/m²
HDR Sustained 2% Window
317 cd/m²
222 cd/m²
HDR Sustained 10% Window
318 cd/m²
312 cd/m²
HDR Sustained 25% Window
317 cd/m²
311 cd/m²
HDR Sustained 50% Window
317 cd/m²
310 cd/m²
HDR Sustained 100% Window
317 cd/m²
308 cd/m²
HDR ABL
0.000
0.023
Gray Uniformity
6.9
7.1
50% Uniformity Picture
50% Std. Dev.
5.567%
4.761%
50% DSE
0.210%
0.201%
5% Uniformity Picture
5% Std. Dev.
0.657%
0.597%
5% DSE
0.069%
0.081%
Viewing Angle
6.2
7.4
Viewing Angle Video
Chroma Graph
Color Shift Picture
Color Shift
22°
Color Washout
24°
Brightness Picture
Brightness
29°
Hue Graph
Black Level Picture
Color Shift
70°
Lightness Graph
Black Level
75°
Brightness Loss
29°
Black Level Raise
70°
Gamma Shift
40°
Black Uniformity
4.2
4.0
Native Black Uniformity Picture
Native Std. Dev.
3.168%
3.324%
Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Reflections
8.6
8.4
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Semi-gloss
Semi-gloss
Total Reflections
3.3%
3.2%
Indirect Reflections
0.7%
0.8%
Calculated Direct Reflections
2.4%
Pre Calibration
5.1
6.4
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
5.11
5.16
Color dE
4.84
3.09
Gamma
2.21
2.16
Color Temperature
5,763 K
6,444 K
Picture Mode
Expert (Dark Room)
Expert (Dark Room)
Color Temp Setting
Warm 2
Gamma Setting
2.2
Post Calibration
9.2
9.5
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Expert (Dark Room)
White Balance dE
0.24
0.17
Color dE
2.05
1.27
Gamma
2.19
2.19
Color Temperature
6,550 K
6,502 K
White Balance Calibration
20 point
Color Calibration
Yes
Auto-Calibration Function
No
480p Input
8.0
8.0
480p Picture
720p Input
8.0
8.0
720p Picture
1080p Input
9.0
9.0
1080p Picture
4k Input
8.0
8.0
4k Picture
8k Input
0.0
8k Picture
Pixels
Pixels Picture
Type
LED
LED
Sub-Type
IPS
IPS
Color Gamut
6.8
7.0
Wide Color Gamut
No
No
Color Gamut DCI-P3 Picture
DCI P3 xy
76.21%
77.44%
DCI P3 uv
82.09%
83.64%
Color Gamut Rec.2020 Picture
Rec 2020 xy
54.71%
55.65%
Rec 2020 uv
59.88%
61.28%
EOTF
Color Volume
4.8
4.8
P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
55.6%
56.1%
10,000 cd/m² DCI P3 Coverage ITP
19.0%
20.2%
2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
39.3%
40.1%
10,000 cd/m² Rec 2020 Coverage ITP
13.3%
14.2%
Gradient
8.1
8.4
Gradient Picture
Color Depth
10 Bit
10 Bit
Red (Std. Dev.)
0.101
0.090
Green (Std. Dev.)
0.116
0.116
Blue (Std. Dev.)
0.093
0.081
Gray (Std. Dev.)
0.115
0.105
Temporary Image Retention
4.9
5.1
Image Retention Picture
IR after 0 min recovery
7.85%
2.88%
IR after 2 min recovery
0.34%
0.42%
IR after 4 min recovery
0.00%
0.17%
IR after 6 min recovery
0.00%
0.00%
IR after 8 min recovery
0.00%
0.00%
IR after 10 min recovery
0.00%
0.00%
Permanent Burn-In Risk
10
10
Permanent Burn-In Risk
No
No
Motion
Response Time
7.9
6.5
Motion Blur Picture
Response Time Chart
80% Response Time
7.1 ms
7.9 ms
100% Response Time
16.7 ms
15.0 ms
Flicker-Free
4.0
4.0
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
120 Hz
120 Hz
Black Frame Insertion (BFI)
5.4
5.4
BFI Picture
BFI Frequency Picture
Optional BFI
No
No
Min Flicker for 60 fps
120 Hz
120 Hz
60 Hz for 60 fps
No
No
120 Hz for 120 fps
N/A
N/A
Min Flicker for 60 fps in Game Mode
120 Hz
120 Hz
Motion Interpolation
Motion Interpolation (30 fps) Picture
Motion Interpolation (30 fps)
Yes
Yes
Motion Interpolation (60 fps) Picture
Motion Interpolation (60 fps)
No
No
Stutter
8.0
7.7
Frame Hold Time @ 24 fps
25.0 ms
26.7 ms
Frame Hold Time @ 60 fps
0.0 ms
1.7 ms
24p Judder
7.8
7.8
Judder-Free 24p
Yes
Yes
Judder-Free 24p via 60p
No
No
Judder-Free 24p via 60i
No
No
Judder-Free 24p via Native Apps
Yes
Yes
Variable Refresh Rate
0.0
0.0
Native Refresh Rate
60 Hz
60 Hz
Variable Refresh Rate
No
No
HDMI Forum VRR
No
FreeSync
No
G-SYNC Compatible
No
4k VRR Maximum
N/A
N/A
4k VRR Minimum
N/A
No VRR support
1080p VRR Maximum
N/A
N/A
1080p VRR Minimum
N/A
No VRR support
1440p VRR Maximum
N/A
1440p VRR Minimum
No VRR support
VRR Supported Connectors
N/A
No VRR support
Inputs
Input Lag
9.8
9.1
1080p @ 60 Hz
13.1 ms
11.5 ms
1080p @ 60 Hz Outside Game Mode
45.9 ms
134.5 ms
1440p @ 60 Hz
N/A
4k @ 60 Hz
13.0 ms
11.8 ms
4k @ 60 Hz + 10 bit HDR
12.8 ms
11.3 ms
4k @ 60 Hz @ 4:4:4
12.6 ms
12.8 ms
4k @ 60 Hz Outside Game Mode
62.6 ms
134.2 ms
4k @ 60 Hz With Interpolation
95.9 ms
134.0 ms
8k @ 60 Hz
N/A
1080p @ 120 Hz
N/A
N/A
1440p @ 120 Hz
N/A
4k @ 120 Hz
N/A
N/A
1080p with Variable Refresh Rate
N/A
N/A
1440p with VRR
N/A
4k with VRR
N/A
N/A
8k with VRR
N/A
Auto Low Latency Mode (ALLM)
No
1080p @ 60Hz + HDR
12.7 ms
4k @ 60Hz @ 4:4:4 + 8 bit HDR
12.6 ms
Supported Resolutions
6.7
7.5
Resolution
"4k"
"4k"
1080p @ 60 Hz @ 4:4:4
Yes
Yes
1080p @ 120 Hz
No
No
1440p @ 60 Hz
No
No
1440p @ 120 Hz
No
4k @ 30Hz @ 4:4:4
Yes
4k @ 60 Hz
Yes
Yes
4k @ 60 Hz @ 4:4:4
Yes
Yes
4k @ 120 Hz
No
No
8k @ 30 Hz or 24 Hz
No
8k @ 60 Hz
No
Input Photos
Side Inputs Picture
Rear Inputs Picture
Rear Inputs
Rear Inputs Picture
Total Inputs
HDMI
3
3
USB
2
2
Digital Optical Audio Out
1
1
Analog Audio Out 3.5mm
0
0
Analog Audio Out RCA
0
0
Component In
1 (shared)
1 (shared)
Composite In
1 (shared)
1 (shared)
Tuner (Cable/Ant)
1
1
Ethernet
1
1
DisplayPort
0
0
IR In
0
0
SD/SDHC
0
0
Inputs Specifications
HDR10
Yes
Yes
HDR10+
No
Dolby Vision
No
No
HLG
Yes
Yes
3D
No
No
5.1 Passthrough ARC Dolby Digital
Yes
Yes
5.1 Passthrough ARC DTS
Yes
Yes
5.1 Passthrough Optical Dolby Digital
Yes
Yes
5.1 Passthrough Optical DTS
Yes
Yes
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3)
Yes (HDMI 1,2,3)
HDMI 2.1 Full Bandwidth
No
HDMI 2.1
No
ARC
Yes (HDMI 2)
Yes (HDMI 2)
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3)
Yes (HDMI 1,2,3)
USB 3.0
No
No
Variable Analog Audio Out
No
No
Wi-Fi Support
Yes (2.4 GHz, 5 GHz)
Yes (2.4 GHz, 5 GHz)
MHL
No
Audio Passthrough
ARC
Yes (HDMI 2)
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
Yes
5.1 DTS via ARC
Yes
Yes
5.1 Dolby Digital via Optical
Yes
Yes
5.1 DTS via Optical
Yes
Yes
Sound Quality
Frequency Response
6.1
5.9
Frequency Response
Low-Frequency Extension
100.79 Hz
100.79 Hz
Std. Dev. @ 70
4.19 dB
3.86 dB
Std. Dev. @ 80
4.24 dB
4.43 dB
Std. Dev. @ Max
6.20 dB
5.90 dB
Max
84.8 dB SPL
83.7 dB SPL
Dynamic Range Compression
3.96 dB
3.77 dB
Distortion
6.2
7.0
Total Harmonic Distortion
Weighted THD @ 80
0.082
0.298
Weighted THD @ Max
0.774
0.570
IMD @ 80
2.63%
2.93%
IMD @ Max
41.27%
5.48%
Smart Features
Interface
8.5
8.5
Smart TV Picture
Smart OS
WebOS
WebOS
Version
3.5
4.0
Ease of Use
Easy
Easy
Smoothness
Average
Average
Time Taken to Select YouTube
4 s
2 s
Time Taken to Change Backlight
9 s
12 s
Advanced Options
Many
Many
Ad-Free
0.0
0.0
Ads Picture
Ads
Yes
Yes
Opt-out
No
No
Suggested Content in Home
Yes
Yes
Opt-out of Suggested Content
No
No
Apps and Features
8.0
8.0
Apps Picture
App Selection
Many
Great
App Smoothness
Average
Average
Cast Capable
Yes
Yes
USB Drive Playback
Yes
Yes
USB Drive HDR Playback
Yes
Yes
HDR in Netflix
Yes
Yes
HDR in Amazon Video
Yes
HDR in YouTube
Yes
Yes
Remote
6.5
6.5
Remote Picture
Size
Medium
Medium
Voice Control
No
No
CEC Menu Control
Yes
Yes
Other Smart Features
No
No
Remote App
LG TV Plus
Remote App
7.0
Remote App Picture
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
No
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
35 W
36 W
Power Consumption (Max)
68 W
68 W
Firmware
03.50.40
03.00.63
Check Price
43"
43UJ6300
Searching
Finding store43"
43UK6300
Searching
Finding store49"
49UJ6300
Searching
Finding store49"
49UK6300
Searching
Finding store50"
50"
50UK6300
Searching
Finding store55"
55UJ6300
Searching
Finding store55"
55UK6300
Searching
Finding store65"
65UJ6300
Searching
Finding store65"
65UK6300
Searching
Finding store
LG UJ6300
LG UK6300
Comments
LG UJ6300 vs LG UK6300: Main Discussion
What do you think of these products? Let us know below.
Looking for a personalized buying advice from the RTINGS.com experts? Insiders have direct access to buying advice on our insider forum.