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- Table of Contents
- Top
- Main Differences
- Market Context
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
LG B9 OLED vs LG CX OLED
Side-by-Side Comparison
Products
LG B9 OLED
LG CX OLED
Tested using Methodology v1.5
Updated May 16, 2023 06:58 PM
SEE PRICE
Amazon.comTested using Methodology v1.6
Updated Apr 16, 2025 03:25 PM
SEE PRICE
Amazon.com
TypeOLED
Sub-TypeWRGB
Resolution4k
TypeOLED
Sub-TypeWOLED
Resolution4k
Variants
- OLED55B9PUA (55")
- OLED65B9PUA (65")
- OLED77B9PUA (77")
- OLED48CXPUB (48")
- OLED55CXPUA (55")
- OLED65CXPUA (65")
- OLED77CXPUA (77")
Our Verdict
LG B9 OLED
LG CX OLED
The LG CX OLED is a bit better than the LG B9 OLED. The CX can get brighter in HDR, it has much better out-of-the-box color accuracy, and its BFI features works at 120Hz. The B9 has slightly wider viewing angles and the gray uniformity is better, but this could be due to panel variances.
Check Price
48"
48"
OLED48CXPUB
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OLED55B9PUA
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OLED55CXPUA
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OLED65B9PUA
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OLED65CXPUA
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OLED77B9PUA
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OLED77CXPUA
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Finding storeMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
8.7
8.8
Full Comparison
Market Context
Market Context
Design
Style
Design Picture
Curved
No
No
Accelerated Longevity Test
Uniformity Pictures
Month 26
50% Gray
Longevity Graph
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 300x200
VESA 300x200
Borders
Borders Picture
Borders
0.35" (0.9 cm)
0.35" (0.9 cm)
Thickness
Thickness Picture
Max Thickness
1.89" (4.8 cm)
1.93" (4.9 cm)
Build Quality
8.5
9.0
Build quality picture
Picture Quality
Contrast
10
10
Checkerboard Picture
Native Contrast
Inf : 1
Inf : 1
Contrast with local dimming
N/A
N/A
SDR Brightness
7.1
7.0
Real Scene Peak Brightness
328 cd/m²
321 cd/m²
Peak 2% Window
418 cd/m²
459 cd/m²
Peak 10% Window
418 cd/m²
456 cd/m²
Peak 25% Window
387 cd/m²
414 cd/m²
Peak 50% Window
328 cd/m²
340 cd/m²
Peak 100% Window
195 cd/m²
176 cd/m²
Sustained 2% Window
403 cd/m²
439 cd/m²
Sustained 10% Window
404 cd/m²
435 cd/m²
Sustained 25% Window
373 cd/m²
395 cd/m²
Sustained 50% Window
318 cd/m²
324 cd/m²
Sustained 100% Window
190 cd/m²
146 cd/m²
Automatic Brightness Limiting (ABL)
0.048
0.069
Local Dimming
10
10
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
No
No
Backlight
No Backlight
No Backlight
Local Dimming In Game Mode
10
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
No
Backlight
No Backlight
HDR Brightness
6.4
7.1
EOTF
Real Scene Highlight
526 cd/m²
681 cd/m²
Peak 2% Window
603 cd/m²
760 cd/m²
Peak 10% Window
603 cd/m²
817 cd/m²
Peak 25% Window
446 cd/m²
465 cd/m²
Peak 50% Window
296 cd/m²
311 cd/m²
Peak 100% Window
140 cd/m²
152 cd/m²
Sustained 2% Window
576 cd/m²
720 cd/m²
Sustained 10% Window
579 cd/m²
776 cd/m²
Sustained 25% Window
427 cd/m²
443 cd/m²
Sustained 50% Window
282 cd/m²
293 cd/m²
Sustained 100% Window
135 cd/m²
146 cd/m²
Automatic Brightness Limiting (ABL)
0.090
0.101
HDR Brightness In Game Mode
6.7
Game Mode EOTF
Real Scene Highlight
563 cd/m²
Peak 2% Window
749 cd/m²
Peak 10% Window
804 cd/m²
Peak 25% Window
457 cd/m²
Peak 50% Window
320 cd/m²
Peak 100% Window
152 cd/m²
Sustained 2% Window
633 cd/m²
Sustained 10% Window
768 cd/m²
Sustained 25% Window
433 cd/m²
Sustained 50% Window
302 cd/m²
Sustained 100% Window
147 cd/m²
Automatic Brightness Limiting (ABL)
0.096
Gray Uniformity
8.6
8.5
50% Uniformity Picture
50% Std. Dev.
0.940%
1.526%
50% DSE
0.128%
0.135%
5% Uniformity Picture
5% Std. Dev.
0.771%
0.401%
5% DSE
0.114%
0.106%
Black Uniformity
10
10
Native Black Uniformity Picture
Native Std. Dev.
0.242%
0.416%
Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Viewing Angle
8.6
8.4
Viewing Angle Video
Chroma Graph
Color Washout
47°
48°
Hue Graph
Color Shift
29°
32°
Lightness Graph
Brightness Loss
64°
62°
Black Level Raise
70°
70°
Gamma Shift
65°
57°
Reflections
9.3
9.3
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Glossy
Glossy
Total Reflections
1.5%
1.5%
Indirect Reflections
0.2%
0.4%
Calculated Direct Reflections
1.3%
1.1%
Pre Calibration
4.9
8.2
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
5.79
2.47
Color dE
4.27
1.77
Gamma
2.20
2.19
Color Temperature
5,502 K
7,034 K
Picture Mode
Expert (Dark Room)
Expert (Dark Room)
Color Temp Setting
Warm 2
Warm 2
Gamma Setting
2.2
2.2
Post Calibration
9.5
9.6
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.14
0.16
Color dE
1.33
1.00
Gamma
2.20
2.20
Color Temperature
6,502 K
6,512 K
White Balance Calibration
22 point
22 point
Color Calibration
Yes
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
10
10
4k Picture
8k Input
0.0
0.0
8k Picture
Pixels
Pixels Picture
Type
OLED
OLED
Sub-Type
WRGB
WOLED
Color Gamut
8.5
8.6
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
96.27%
97.32%
DCI P3 uv
97.06%
98.71%
Color Gamut Rec.2020 Picture
Rec 2020 xy
70.84%
71.67%
Rec 2020 uv
74.18%
75.65%
EOTF
Color Volume
7.6
7.1
P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
86.6%
80.6%
10,000 cd/m² DCI P3 Coverage ITP
43.8%
44.2%
2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
65.0%
61.0%
10,000 cd/m² Rec 2020 Coverage ITP
32.5%
33.5%
Gradient
7.7
8.7
Gradient Picture
Color Depth
10 Bit
10 Bit
Red (Std. Dev.)
0.115
0.083
Green (Std. Dev.)
0.123
0.105
Blue (Std. Dev.)
0.133
0.092
Gray (Std. Dev.)
0.097
0.081
Temporary Image Retention
10
10
Image Retention Picture
IR after 0 min recovery
0.00%
0.00%
IR after 2 min recovery
0.00%
0.00%
IR after 4 min recovery
0.00%
0.00%
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
2.0
2.0
Permanent Burn-In Risk
Yes
Yes
Motion
Response Time
9.9
9.9
Motion Blur Picture
Response Time Chart
80% Response Time
0.2 ms
0.3 ms
100% Response Time
1.6 ms
1.7 ms
Flicker-Free
10
10
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
0 Hz
0 Hz
Black Frame Insertion (BFI)
8.7
10
BFI Picture
BFI Frequency Picture
Optional BFI
Yes
Yes
Min Flicker For 60 fps
60 Hz
60 Hz
60Hz For 60 fps
Yes
Yes
120Hz For 120 fps
No
Yes
Min Flicker for 60 fps in Game Mode
60 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)
Yes
Yes
Stutter
4.8
4.9
Frame Hold Time @ 24 fps
40.1 ms
39.9 ms
Frame Hold Time @ 60 fps
15.1 ms
14.9 ms
24p Judder
10
10
Judder-Free 24p
Yes
Yes
Judder-Free 24p via 60p
Yes
Yes
Judder-Free 24p via 60i
Yes
Yes
Judder-Free 24p via Native Apps
Yes
Yes
Variable Refresh Rate
8.3
9.4
Native Refresh Rate
120 Hz
120 Hz
Variable Refresh Rate
Yes
Yes
HDMI Forum VRR
Yes
Yes
FreeSync
No
Yes
G-SYNC Compatible
Yes (NVIDIA Certified)
Yes (NVIDIA Certified)
4k VRR Maximum
60 Hz
120 Hz
4k VRR Minimum
40 Hz
< 20 Hz
1080p VRR Maximum
120 Hz
120 Hz
1080p VRR Minimum
< 20 Hz
< 20 Hz
1440p VRR Maximum
120 Hz
120 Hz
1440p VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
HDMI
HDMI
Inputs
Input Lag
8.8
9.5
1080p @ 60Hz
13.8 ms
13.6 ms
1080p @ 60Hz Outside Game Mode
42.7 ms
97.0 ms
1440p @ 60Hz
13.8 ms
13.8 ms
4k @ 60Hz
13.7 ms
13.6 ms
4k @ 60Hz + 10-Bit HDR
16.2 ms
13.5 ms
4k @ 60Hz @ 4:4:4
13.7 ms
13.6 ms
4k @ 60Hz Outside Game Mode
42.7 ms
97.0 ms
4k @ 60Hz With Interpolation
90.5 ms
92.9 ms
8k @ 60Hz
N/A
N/A
1080p @ 120Hz
7.0 ms
6.9 ms
1440p @ 120Hz
7.0 ms
6.9 ms
4k @ 120Hz
6.7 ms
1080p with Variable Refresh Rate
6.0 ms
5.9 ms
1440p with VRR
6.4 ms
6.2 ms
4k with VRR
9.1 ms
5.9 ms
8k with VRR
N/A
N/A
Auto Low Latency Mode (ALLM)
Yes
Yes
Supported Resolutions
9.6
9.6
Resolution
4k
4k
1080p @ 60Hz @ 4:4:4
Yes
Yes
1080p @ 120Hz
Yes (native support)
Yes (native support)
1440p @ 60Hz
Yes (forced resolution required)
Yes (forced resolution required)
1440p @ 120Hz
Yes (native support)
Yes (native support)
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
Yes (native support)
8k @ 30Hz or 24Hz
No
No
8k @ 60Hz
No
No
Advanced Console Compatibility
PS5 Screenshot
Xbox Series X Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
PS5, 4k @ 120Hz + HDR
Yes
PS5, 4k @ 120Hz
Yes
PS5, 4k @ 60Hz + HDR
Yes
PS5, 1440p @ 120Hz
PS5 can't do 1440p
PS5, 1080p @ 120Hz
Yes
PS5, Variable Refresh Rate
PS5 can't do VRR yet
Xbox Series X, 4k @ 120Hz + HDR
Yes
Xbox Series X, 4k @ 120Hz
Yes
Xbox Series X, 4k @ 60Hz + HDR
Yes
Xbox Series X, 1440p @ 120Hz
Yes
Xbox Series X, 1080p @ 120Hz
Yes
Xbox Series X, Variable Refresh Rate
Yes
Inputs Specifications
HDR10
Yes
Yes
HDR10+
No
No
Dolby Vision
Yes
Yes
HLG
Yes
Yes
3D
No
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
HDMI 2.1 Class Bandwidth
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
USB 3.0
No
No
Variable Analog Audio Out
Yes
Yes
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
3
3
Digital Optical Audio Out
1
1
Analog Audio Out 3.5mm
1
1
Analog Audio Out RCA
0
0
Component In
0
0
Composite In
1 (incl. adapter)
1 (incl. adapter)
Tuner (Cable/Ant)
1
1
Ethernet
1
1
DisplayPort
0
0
IR In
0
0
SD/SDHC
0
0
Audio Passthrough
ARC
Yes (HDMI 2)
Yes (HDMI 2)
eARC support
Yes
Yes
Dolby Atmos via TrueHD via eARC
Yes
Yes
DTS:X via DTS-HD MA via eARC
Yes
No
5.1 Dolby Digital via ARC
Yes
Yes
5.1 DTS via ARC
Yes
No
5.1 Dolby Digital via Optical
Yes
Yes
5.1 DTS via Optical
Yes
No
Sound Quality
Frequency Response
7.0
7.6
Frequency Response
Low-Frequency Extension
67.27 Hz
63.50 Hz
Std. Dev. @ 70
3.01 dB
2.12 dB
Std. Dev. @ 80
3.52 dB
2.12 dB
Std. Dev. @ Max
6.51 dB
5.18 dB
Max
87.6 dB SPL
91.2 dB SPL
Dynamic Range Compression
4.78 dB
5.62 dB
Distortion
7.4
7.0
Total Harmonic Distortion
Weighted THD @ 80
0.109
0.085
Weighted THD @ Max
0.651
0.519
IMD @ 80
2.12%
2.00%
IMD @ Max
3.70%
10.89%
Smart Features
Interface
8.5
8.5
Smart TV Picture
Smart OS
WebOS
webOS
Version
4.6
5.0
Ease of Use
Easy
Easy
Smoothness
Average
Average
Time Taken to Select YouTube
2 s
2 s
Time Taken to Change Backlight
6 s
7 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
Great
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 YouTube
Yes
Yes
Remote
9.0
9.0
Remote Picture
Size
Large
Large
Voice Control
Many Features
Many Features
CEC Menu Control
Yes
Yes
Other Smart Features
Yes
Yes
Remote App
LG TV Plus
LG TV Plus
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
79 W
75 W
Power Consumption (Max)
159 W
178 W
Firmware
03.60.19
03.00.45
Check Price
48"
48"
OLED48CXPUB
Searching
Finding store55"
OLED55B9PUA
Searching
Finding store55"
OLED55CXPUA
Searching
Finding store65"
OLED65B9PUA
Searching
Finding store65"
OLED65CXPUA
Searching
Finding store77"
OLED77B9PUA
Searching
Finding store77"
OLED77CXPUA
Searching
Finding store
LG B9 OLED
LG CX OLED
Comments
LG B9 OLED vs LG CX OLED: Main Discussion
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