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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
Sony X80K/X80CK vs LG B4 OLED
Side-by-Side Comparison
Products
Sony X80K/X80CK
LG B4 OLED
Tested using Methodology v1.11
Updated Feb 07, 2025 06:30 PM
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BestBuy.comTested using Methodology v1.11
Updated Mar 12, 2025 05:47 PM
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Amazon.com
Resolution4k
TypeLED
Sub-TypeIPS
Resolution4k
TypeOLED
Sub-TypeWOLED
Variants
- KD-43X80K (43")
- KD-50X80K (50")
- KD-55X80K (55")
- KD-65X80K (65")
- KD-75X80K (75")
- KD-85X80K (85")
- OLED48B4PUA (48")
- OLED55B4PUA (55")
- OLED65B4PUA (65")
- OLED77B4PUA (77")
- OLED83B4PUA (83")
Our Verdict
Sony X80K/X80CK
LG B4 OLED
Full comparison details regarding individual product score sets can be found in the section below
Check Price
43"
KD-43X80K
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Amazon.com43"
48"
48"
OLED48B4PUA
SEARCH
Amazon.com50"
KD-50X80K
SEE PRICE
Amazon.com50"
55"
KD-55X80K
SEE PRICE
BestBuy.com55"
OLED55B4PUA
SEE PRICE
Amazon.com65"
KD-65X80K
SEE PRICE
BestBuy.com65"
OLED65B4PUA
SEE PRICE
Amazon.com75"
KD-75X80K
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Amazon.com75"
77"
77"
OLED77B4PUA
SEE PRICE
Amazon.com83"
83"
OLED83B4PUA
SEE PRICE
BestBuy.com85"
KD-85X80K
SEE PRICE
Amazon.com85"
Main Differences for
Threshold
Mixed Usage
6.6
8.9
Contrast
2.0
10
Low-Quality Content Smoothing
4.8
7.7
24p Judder
5.6
10
Black Uniformity
5.5
10
Reflections
7.3
9.1
Contrast And Dark Details In Game Mode
4.0
9.5
Full Comparison
Design
Style
Design Picture
Curved
No
No
Accelerated Longevity Test
Uniformity Pictures
Month 24
50% Gray
Longevity Graph
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 300x300
VESA 300x200
Borders
Borders Picture
Borders
0.59" (1.5 cm)
0.39" (1.0 cm)
Thickness
Thickness Picture
Max Thickness
2.72" (6.9 cm)
1.81" (4.6 cm)
Build Quality
7.0
8.5
Build quality picture
Picture Quality
Contrast
2.0
10
Contrast Picture
Contrast
1,173 : 1
Inf : 1
Native Contrast
1,173 : 1
Inf : 1
Blooming
10
10
Blooming Photo
Lighting Zone Transitions
10
10
Preferred LD Video, Moving Object
Local Dimming
No
No
Backlight
Direct
No Backlight
Dimming Zones Count Of Tested TV
N/A
8,294,400
Contrast And Dark Details In Game Mode
4.0
9.5
Blooming Photo In Game Mode
Preferred LD Video, Moving Object In Game Mode
Game Transitions With VRR And Preferred LD
HDR Brightness
6.1
7.7
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
320 cd/m²
647 cd/m²
Yellow Skyscraper (~700 cd/m²)
233 cd/m²
467 cd/m²
Landscape Pool (~300 cd/m²)
171 cd/m²
258 cd/m²
Peak 2% Window
353 cd/m²
685 cd/m²
Peak 10% Window
353 cd/m²
675 cd/m²
Peak 25% Window
353 cd/m²
509 cd/m²
Peak 50% Window
354 cd/m²
328 cd/m²
Peak 100% Window
354 cd/m²
147 cd/m²
Sustained 2% Window
352 cd/m²
678 cd/m²
Sustained 10% Window
353 cd/m²
666 cd/m²
Sustained 25% Window
353 cd/m²
501 cd/m²
Sustained 50% Window
353 cd/m²
326 cd/m²
Sustained 100% Window
354 cd/m²
144 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.094
HDR Brightness In Game Mode
6.3
7.6
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
337 cd/m²
631 cd/m²
Yellow Skyscraper (~700 cd/m²)
260 cd/m²
407 cd/m²
Landscape Pool (~300 cd/m²)
178 cd/m²
278 cd/m²
Peak 2% Window
390 cd/m²
663 cd/m²
Peak 10% Window
390 cd/m²
665 cd/m²
Peak 25% Window
390 cd/m²
503 cd/m²
Peak 50% Window
391 cd/m²
326 cd/m²
Peak 100% Window
391 cd/m²
147 cd/m²
Sustained 2% Window
389 cd/m²
656 cd/m²
Sustained 10% Window
390 cd/m²
657 cd/m²
Sustained 25% Window
390 cd/m²
497 cd/m²
Sustained 50% Window
390 cd/m²
326 cd/m²
Sustained 100% Window
390 cd/m²
144 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.093
PQ EOTF Tracking
7.7
9.8
PQ EOTF Graph
600 Nit Tracking Delta
0.0154
0.0012
1000 Nit Tracking Delta
0.0154
0.0011
4000 Nit Tracking Delta
0.0154
0.0018
SDR Brightness
7.3
7.7
Real Scene Peak Brightness
341 cd/m²
398 cd/m²
Peak 2% Window
354 cd/m²
425 cd/m²
Peak 10% Window
354 cd/m²
433 cd/m²
Peak 25% Window
354 cd/m²
426 cd/m²
Peak 50% Window
354 cd/m²
418 cd/m²
Peak 100% Window
354 cd/m²
244 cd/m²
Sustained 2% Window
354 cd/m²
419 cd/m²
Sustained 10% Window
354 cd/m²
429 cd/m²
Sustained 25% Window
354 cd/m²
423 cd/m²
Sustained 50% Window
354 cd/m²
416 cd/m²
Sustained 100% Window
354 cd/m²
242 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.037
Color Gamut
7.8
8.7
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
86.93%
98.29%
DCI P3 uv
92.92%
99.50%
Color Gamut Rec.2020 Picture
Rec 2020 xy
62.91%
72.27%
Rec 2020 uv
68.91%
76.75%
Color Volume
6.7
7.9
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
50.6%
66.9%
2020 Color Volume ITP Picture
10,000 cd/m² Rec 2020 Coverage ITP
23.7%
34.2%
White Luminance
352 cd/m²
719 cd/m²
Red Luminance
70 cd/m²
89 cd/m²
Green Luminance
239 cd/m²
306 cd/m²
Blue Luminance
28 cd/m²
38 cd/m²
Cyan Luminance
263 cd/m²
334 cd/m²
Magenta Luminance
97 cd/m²
115 cd/m²
Yellow Luminance
315 cd/m²
366 cd/m²
Pre Calibration
8.6
9.1
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
2.02
1.30
Color dE
1.36
1.20
Gamma
2.23
2.13
Color Temperature
6,174 K
6,550 K
Picture Mode
Custom
Expert (Dark Space)
Color Temp Setting
Expert 1
Warm 50
Gamma Setting
0
2.2
Post Calibration
9.5
9.5
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.25
0.22
Color dE
1.04
1.03
Gamma
2.19
2.20
Color Temperature
6,516 K
6,495 K
White Balance Calibration
10 point
22 point
Color Calibration
No
Yes
Gray Uniformity
7.8
8.8
50% Uniformity Picture
50% Std. Dev.
2.211%
0.738%
50% DSE
0.183%
0.126%
5% Uniformity Picture
5% Std. Dev.
0.471%
0.470%
5% DSE
0.087%
0.100%
Black Uniformity
5.5
10
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
N/A
N/A
Native Black Uniformity Picture
Native Std. Dev.
2.315%
0.209%
Viewing Angle
7.8
8.9
Viewing Angle Video
Chroma Graph
Color Washout
38°
52°
Hue Graph
Color Shift
57°
29°
Lightness Graph
Brightness Loss
37°
69°
Black Level Raise
70°
70°
Gamma Shift
47°
67°
Reflections
7.3
9.1
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Semi-gloss
Glossy
Total Reflections
5.3%
1.7%
Indirect Reflections
0.4%
0.1%
Calculated Direct Reflections
4.9%
1.6%
HDR Native Gradient
7.3
8.0
HDR Gradient Picture
100% Black to 50% Gray
6.0
6.0
50% Gray to 100% White
10
10
100% Black to 50% Red
6.0
8.0
50% Red to 100% Red
10
10
100% Black to 50% Green
6.0
6.0
50% Green to 100% Green
6.0
8.0
100% Black to 50% Blue
6.0
8.0
50% Blue to 100% Blue
8.0
8.0
Low-Quality Content Smoothing
4.8
7.7
Low-Quality Content Smoothing Picture
Smoothing
3.0
7.5
Detail Preservation
9.0
8.0
Upscaling: Sharpness Processing
7.5
8.0
Sharpness Picture - 480p
Pixels
Pixels Picture
Subpixel Layout
RGB
RWBG
Type
LED
OLED
Sub-Type
IPS
WOLED
Motion
Response Time
7.3
9.9
Motion Blur Picture
Response Time Chart
80% Response Time
6.1 ms
0.2 ms
100% Response Time
15.4 ms
2.3 ms
Flicker-Free
10
10
Backlight chart
Flicker-Free
Yes
No
PWM Dimming Frequency
0 Hz
0 Hz
Black Frame Insertion (BFI)
BFI Picture
BFI Frequency Picture
Optional BFI
Yes
Yes
Min Flicker For 60 fps
120 Hz
60 Hz
60Hz For 60 fps
No
Yes
120Hz For 120 fps
N/A
No
Min Flicker for 60 fps in Game Mode
120 Hz
60 Hz
Motion Interpolation
Motion Interpolation (30 fps) Picture
Motion Interpolation (30 fps)
Yes
Yes
Motion Interpolation (60 fps) Picture
Motion Interpolation (60 fps)
No
Yes
Stutter
7.7
5.0
Frame Hold Time @ 24 fps
26.3 ms
39.4 ms
Frame Hold Time @ 60 fps
1.3 ms
14.4 ms
24p Judder
5.6
10
Judder-Free 24p
Yes
Yes
Judder-Free 24p via 60p
No
Yes
Judder-Free 24p via 60i
No
Yes
Judder-Free 24p via Native Apps
No
Yes
Variable Refresh Rate
0.0
9.4
Native Refresh Rate
60 Hz
120 Hz
Variable Refresh Rate
No
Yes
HDMI Forum VRR
No
Yes
FreeSync
No
Yes
G-SYNC Compatible
No
Yes (NVIDIA Certified)
4k VRR Maximum
N/A
120 Hz
4k VRR Minimum
No VRR support
< 20 Hz
1080p VRR Maximum
N/A
120 Hz
1080p VRR Minimum
No VRR support
< 20 Hz
1440p VRR Maximum
N/A
120 Hz
1440p VRR Minimum
No VRR support
< 20 Hz
VRR + Local Dimming
No Local Dimming
No Local Dimming
Inputs
Input Lag
9.6
9.7
1080p @ 60Hz
11.8 ms
10.5 ms
1080p @ 60Hz Outside Game Mode
132.7 ms
155.9 ms
1080p @ 120Hz
N/A
5.8 ms
1080p @ 144Hz
N/A
N/A
1440p @ 60Hz
11.4 ms
10.8 ms
1440p @ 120Hz
N/A
5.7 ms
1440p @ 144Hz
N/A
N/A
4k @ 60Hz
11.4 ms
10.6 ms
4k @ 60Hz + 10-Bit HDR
11.5 ms
10.6 ms
4k @ 60Hz @ 4:4:4
11.4 ms
10.6 ms
4k @ 60Hz Outside Game Mode
132.5 ms
139.2 ms
4k @ 60Hz With Interpolation
132.5 ms
130.6 ms
4k @ 120Hz
N/A
5.5 ms
4k @ 144Hz
N/A
N/A
8k @ 60Hz
N/A
N/A
Supported Resolutions
7.1
9.6
Resolution
4k
4k
480p @ 59.94Hz (Widescreen)
Yes
Yes
720p @ 59.94Hz
Yes
Yes
1080p @ 60Hz @ 4:4:4
Yes
Yes
1080p @ 120Hz
No
Yes
1080p @ 144Hz
No
No
1440p @ 60Hz
Yes (forced resolution required)
Yes (forced resolution required)
1440p @ 120Hz
No
Yes
1440p @ 144Hz
No
No
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
No
Yes
4k @ 120Hz @ 4:4:4
No
Yes
4k @ 144Hz
No
No
8k @ 30Hz or 24Hz
No
No
8k @ 60Hz
No
No
PS5 Compatibility
PS5 Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
No
Yes
1440p @ 120Hz
No
Yes
1080p @ 120Hz
No
Yes
HDR
Yes
Yes
VRR
No
Yes
Xbox Series X|S Compatibility
Xbox Series X Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
No
Yes
1440p @ 120Hz
No
Yes
1080p @ 120Hz
No
Yes
HDR
Yes
Yes
VRR
No
Yes
Inputs Specifications
HDR10
Yes
Yes
HDR10+
No
No
Dolby Vision
Yes
Yes
HLG
Yes
Yes
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
HDMI 2.1 Class Bandwidth
No
Yes (HDMI 1,2,3,4)
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
ATSC Tuner
3.0 (NEXTGEN TV)
1.0
USB 3.0
Yes (1)
No
Variable Analog Audio Out
No
No
Wi-Fi Support
Yes (2.4 GHz, 5 GHz)
Yes (2.4 GHz, 5 GHz)
Input Photos
Side Inputs Picture
Rear Inputs Picture
Total Inputs
HDMI
4
4
USB
2
2
Digital Optical Audio Out
1
1
Analog Audio Out 3.5mm
0
0
Analog Audio Out RCA
0
0
Component In
0
0
Composite In
1 (adapter required, not incl.)
0
Tuner (Cable/Ant)
1
1
Ethernet
1
1
DisplayPort
0
0
IR In
1
0
Audio Passthrough
ARC/eARC Port
eARC
eARC
eARC: Dolby Atmos Over Dolby Digital Plus
Yes
Yes
eARC: Dolby Digital Plus 7.1
Yes
Yes
eARC: LPCM 7.1 Over Dolby MAT
Yes
Yes
eARC: Dolby TrueHD 7.1
Yes
Yes
eARC: DTS:X Over DTS-HD MA
Yes
Yes
eARC: DTS-HD Master Audio 7.1
Yes
Yes
eARC: LPCM Channels (Bitstream)
7.1
7.1
ARC: Dolby Digital 5.1
Yes
Yes
ARC: DTS 5.1
Yes
Yes
Optical: Dolby Digital 5.1
Yes
Yes
Optical: DTS 5.1
Yes
Yes
Sound Quality
Frequency Response
6.9
7.0
Frequency Response
Low-Frequency Extension
106.79 Hz
84.76 Hz
Std. Dev. @ 70
1.98 dB
3.82 dB
Std. Dev. @ 80
2.43 dB
3.81 dB
Std. Dev. @ Max
5.47 dB
5.99 dB
Max
91.3 dB SPL
90.1 dB SPL
Dynamic Range Compression
5.19 dB
3.31 dB
Distortion
6.3
6.7
Total Harmonic Distortion
Weighted THD @ 80
0.097
0.192
Weighted THD @ Max
16.520
0.570
IMD @ 80
2.85%
3.53%
IMD @ Max
10.43%
14.67%
Smart Features
Interface
8.0
8.5
Smart TV Picture
Smart OS
Google TV
webOS
Version
10
24
Ease of Use
Average
Easy
Smoothness
Very Smooth
Average
Time Taken to Select YouTube
2 s
2 s
Time Taken to Change Backlight
2 s
3 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
No
Opt-out of Suggested Content
No
No
Apps and Features
9.0
8.0
Apps Picture
App Selection
Great
Great
App Smoothness
Very Smooth
Average
Cast Capable
Yes
Yes
USB Drive Playback
Yes
Yes
USB Drive HDR Playback
Yes
Yes
HDR in Netflix
Yes
Yes
HDR in YouTube
Yes
Yes
Remote
8.5
9.0
Remote Picture
Size
Medium
Large
Voice Control
Many Features
Many Features
CEC Menu Control
Yes
Yes
Other Smart Features
No
Yes
Remote App
Android TV
LG ThinQ
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
61 W
72 W
Power Consumption (Max)
166 W
214 W
Firmware
PKG6.5524.0659NAA
03.10.37
Check Price
43"
KD-43X80K
SEE PRICE
Amazon.com43"
48"
48"
OLED48B4PUA
SEARCH
Amazon.com50"
KD-50X80K
SEE PRICE
Amazon.com50"
55"
KD-55X80K
SEE PRICE
BestBuy.com55"
OLED55B4PUA
SEE PRICE
Amazon.com65"
KD-65X80K
SEE PRICE
BestBuy.com65"
OLED65B4PUA
SEE PRICE
Amazon.com75"
KD-75X80K
SEE PRICE
Amazon.com75"
77"
77"
OLED77B4PUA
SEE PRICE
Amazon.com83"
83"
OLED83B4PUA
SEE PRICE
BestBuy.com85"
KD-85X80K
SEE PRICE
Amazon.com85"
Sony X80K/X80CK
LG B4 OLED
Comments
Sony X80K/X80CK vs LG B4 OLED: Main Discussion
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