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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Market Context
    1. Market Context
  5. Design
    1. Style
    2. Stand
    3. Back
    4. Borders
    5. Thickness
    6. Build Quality
  6. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Gray Uniformity
    6. Viewing Angle
    7. Black Uniformity
    8. Reflections
    9. Pre Calibration
    10. Post Calibration
    11. 480p Input
    12. 720p Input
    13. 1080p Input
    14. 4k Input
    15. 8k Input
    16. Pixels
    17. Color Gamut
    18. Color Volume
    19. Gradient
    20. Temporary Image Retention
    21. Permanent Burn-In Risk
  7. Motion
    1. Response Time
    2. Flicker-Free
    3. Black Frame Insertion (BFI)
    4. Motion Interpolation
    5. Stutter
    6. 24p Judder
    7. Variable Refresh Rate
  8. Inputs
    1. Input Lag
    2. Supported Resolutions
    3. Input Photos
    4. Total Inputs
    5. Inputs Specifications
    6. Audio Passthrough
  9. Sound Quality
    1. Frequency Response
    2. Distortion
  10. Smart Features
    1. Interface
    2. Ad-Free
    3. Apps and Features
    4. Remote
    5. TV Controls
    6. In The Box
    7. Misc
  11. Comments

LG B9 OLED vs LG C9 OLED

Side-by-Side Comparison

Products

LG B9 OLED
LG C9 OLED

Tested using Methodology v1.5

Updated May 16, 2023 06:58 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.5

Updated Apr 12, 2024 03:47 PM

SEE PRICE
Amazon.com
LG B9 OLED Picture
LG C9 OLED Picture

Variants

  • OLED55B9PUA (55")
  • OLED65B9PUA (65")
  • OLED77B9PUA (77")
  • OLED55C9PUA (55")
  • OLED65C9PUA (65")
  • OLED77C9PUA (77")

Our Verdict

LG B9 OLED

LG C9 OLED

The LG B9 OLED and the LG C9 OLED have very similar performance. Any differences can be attributed to panel variance, including the slightly less aggressive ABL found on the B9.

0 

Check Price

Main Differences for
-

Threshold 

0.10
No major differences between these TVs for this usage. See full list of tests below.

Full Comparison

Market Context

Market Context 
 

Show Text 
Design

Style  

9.5
9.5

Design Picture  

LG B9 OLED Design Picture
LG C9 OLED Design Picture

Curved  

No
No
Show Text 

Stand  

Stand Picture  

LG B9 OLED Stand Picture
LG C9 OLED Stand Picture
Show Text 

Back  

Back Picture  

LG B9 OLED Back Picture
LG C9 OLED Back Picture

Wall Mount  

VESA 300x200
VESA 300x200
Show Text 

Borders  

Borders Picture  

LG B9 OLED Borders Picture
LG C9 OLED Borders Picture

Borders  

0.35" (0.9 cm)
0.37" (0.9 cm)
Show Text 

Thickness  

Thickness Picture  

LG B9 OLED Thickness Picture
LG C9 OLED Thickness Picture

Max Thickness  

1.89" (4.8 cm)
1.87" (4.8 cm)
Show Text 

Build Quality 
 

8.5
9.0

Build quality picture  

LG B9 OLED Build quality picture
LG C9 OLED Build quality picture
Show Text 
Picture Quality

Contrast 
 

10
10

Checkerboard Picture  

LG B9 OLED Checkerboard Picture
LG C9 OLED Checkerboard Picture

Native Contrast 
 

Inf : 1
Inf : 1

Contrast with local dimming 
 

N/A
N/A
Show Text 

Local Dimming 
 

10
10

Local Dimming Video  

Local Dimming 
 

No
No

Backlight 
 

No Backlight
No Backlight
Show Text 

SDR Peak Brightness 
 

7.1
7.1

SDR Real Scene Peak Brightness 
 

328 cd/m²
335 cd/m²

SDR Peak 2% Window 
 

418 cd/m²
447 cd/m²

SDR Peak 10% Window 
 

418 cd/m²
444 cd/m²

SDR Peak 25% Window 
 

387 cd/m²
398 cd/m²

SDR Peak 50% Window 
 

328 cd/m²
330 cd/m²

SDR Peak 100% Window 
 

195 cd/m²
157 cd/m²

SDR Sustained 2% Window 
 

403 cd/m²
430 cd/m²

SDR Sustained 10% Window 
 

404 cd/m²
426 cd/m²

SDR Sustained 25% Window 
 

373 cd/m²
382 cd/m²

SDR Sustained 50% Window 
 

318 cd/m²
317 cd/m²

SDR Sustained 100% Window 
 

190 cd/m²
151 cd/m²

SDR ABL 
 

0.048
0.072
Show Text 

HDR Peak Brightness 
 

6.4
7.3

HDR Real Scene Peak Brightness 
 

526 cd/m²
726 cd/m²

HDR Peak 2% Window 
 

603 cd/m²
855 cd/m²

HDR Peak 10% Window 
 

603 cd/m²
845 cd/m²

HDR Peak 25% Window 
 

446 cd/m²
530 cd/m²

HDR Peak 50% Window 
 

296 cd/m²
301 cd/m²

HDR Peak 100% Window 
 

140 cd/m²
145 cd/m²

HDR Sustained 2% Window 
 

576 cd/m²
814 cd/m²

HDR Sustained 10% Window 
 

579 cd/m²
802 cd/m²

HDR Sustained 25% Window 
 

427 cd/m²
506 cd/m²

HDR Sustained 50% Window 
 

282 cd/m²
286 cd/m²

HDR Sustained 100% Window 
 

135 cd/m²
138 cd/m²

HDR ABL 
 

0.090
0.109
Show Text 

Gray Uniformity 
 

8.6
8.6

50% Uniformity Picture  

LG B9 OLED 50% Uniformity Picture
LG C9 OLED 50% Uniformity Picture

50% Std. Dev. 
 

0.940%
0.989%

50% DSE 
 

0.128%
0.128%

5% Uniformity Picture  

LG B9 OLED 5% Uniformity Picture
LG C9 OLED 5% Uniformity Picture

5% Std. Dev. 
 

0.771%
0.499%

5% DSE 
 

0.114%
0.102%
Show Text 

Viewing Angle 
 

8.6
8.8

Viewing Angle Video  

Chroma Graph  

LG B9 OLED Chroma Graph
LG C9 OLED Chroma Graph

Color Washout 
 

47°
49°

Hue Graph  

LG B9 OLED Hue Graph
LG C9 OLED Hue Graph

Color Shift 
 

29°
31°

Lightness Graph  

LG B9 OLED Lightness Graph
LG C9 OLED Lightness Graph

Brightness Loss 
 

64°
67°

Black Level Raise 
 

70°
70°

Gamma Shift 
 

65°
67°
Show Text 

Black Uniformity 
 

10
10

Native Black Uniformity Picture  

LG B9 OLED Native Black Uniformity Picture
LG C9 OLED Native Black Uniformity Picture

Native Std. Dev. 
 

0.242%
0.249%

Black Uniformity Picture with Local Dimming  

LG B9 OLED Black Uniformity Picture with Local Dimming
LG C9 OLED Black Uniformity Picture with Local Dimming

Std. Dev. w/ L.D. 
 

N/A
N/A
Show Text 

Reflections 
 

9.3
9.3

Reflections Picture  

LG B9 OLED Reflections Picture
LG C9 OLED Reflections Picture

Average Room Off Picture  

LG B9 OLED Average Room Off Picture
LG C9 OLED Average Room Off Picture

Bright Room Off Picture  

LG B9 OLED Bright Room Off Picture
LG C9 OLED Bright Room Off Picture

Screen Finish 
 

Glossy
Glossy

Total Reflections 
 

1.5%
1.4%

Indirect Reflections 
 

0.2%
0.2%

Calculated Direct Reflections 
 

1.3%
1.2%
Show Text 

Pre Calibration 
 

4.9
7.6

Pre White Balance Picture  

LG B9 OLED Pre White Balance Picture
LG C9 OLED Pre White Balance Picture

Pre Gamma Curve Picture  

LG B9 OLED Pre Gamma Curve Picture
LG C9 OLED Pre Gamma Curve Picture

Pre Color Picture  

LG B9 OLED Pre Color Picture
LG C9 OLED Pre Color Picture

White Balance dE 
 

5.79
3.46

Color dE 
 

4.27
2.11

Gamma 
 

2.20
2.17

Color Temperature 
 

5,502 K
5,929 K

Picture Mode 
 

Expert (Dark Room)
Expert (Dark Room)

Color Temp Setting 
 

Warm 2
Warm 2

Gamma Setting 
 

2.2
2.2
Show Text 

Post Calibration 
 

9.5
9.5

Post White Balance Picture  

LG B9 OLED Post White Balance Picture
LG C9 OLED Post White Balance Picture

Post Gamma Curve Picture  

LG B9 OLED Post Gamma Curve Picture
LG C9 OLED Post Gamma Curve Picture

Post Color Picture  

LG B9 OLED Post Color Picture
LG C9 OLED Post Color Picture

White Balance dE 
 

0.14
0.44

Color dE 
 

1.33
0.91

Gamma 
 

2.20
2.18

Color Temperature 
 

6,502 K
6,539 K

White Balance Calibration 
 

22 point
22 point

Color Calibration 
 

Yes
Yes

Auto-Calibration Function 
 

No
Yes
Show Text 

480p Input 
 

8.0
8.0

480p Picture  

LG B9 OLED 480p Picture
LG C9 OLED 480p Picture
Show Text 

720p Input 
 

8.0
8.0

720p Picture  

LG B9 OLED 720p Picture
LG C9 OLED 720p Picture
Show Text 

1080p Input 
 

9.0
9.0

1080p Picture  

LG B9 OLED 1080p Picture
LG C9 OLED 1080p Picture
Show Text 

4k Input 
 

10
10

4k Picture  

LG B9 OLED 4k Picture
LG C9 OLED 4k Picture
Show Text 

8k Input 
 

0.0
0.0

8k Picture  

LG B9 OLED 8k Picture
LG C9 OLED 8k Picture
Show Text 

Pixels 
 

Pixels Picture  

LG B9 OLED Pixels Picture
LG C9 OLED Pixels Picture

Type  

OLED
OLED

Sub-Type 
 

WRGB
WRGB
Show Text 

Color Gamut 
 

8.5
8.6

Wide Color Gamut 
 

Yes
Yes

Color Gamut DCI-P3 Picture  

LG B9 OLED Color Gamut DCI-P3 Picture
LG C9 OLED Color Gamut DCI-P3 Picture

DCI P3 xy 
 

96.27%
97.21%

DCI P3 uv 
 

97.06%
98.68%

Color Gamut Rec.2020 Picture  

LG B9 OLED Color Gamut Rec.2020 Picture
LG C9 OLED Color Gamut Rec.2020 Picture

Rec 2020 xy 
 

70.84%
71.57%

Rec 2020 uv 
 

74.18%
75.53%

EOTF  

LG B9 OLED EOTF
LG C9 OLED EOTF
Show Text 

Color Volume 
 

7.6
7.4

P3 Color Volume ITP Picture  

LG B9 OLED P3 Color Volume ITP Picture
LG C9 OLED P3 Color Volume ITP Picture

Normalized DCI P3 Coverage ITP 
 

86.6%
84.6%

10,000 cd/m² DCI P3 Coverage ITP 
 

43.8%
46.8%

2020 Color Volume ITP Picture  

LG B9 OLED 2020 Color Volume ITP Picture
LG C9 OLED 2020 Color Volume ITP Picture

Normalized Rec 2020 Coverage ITP 
 

65.0%
61.7%

10,000 cd/m² Rec 2020 Coverage ITP 
 

32.5%
34.4%
Show Text 

Gradient 
 

7.7
9.0

Gradient Picture  

LG B9 OLED Gradient Picture
LG C9 OLED Gradient Picture

Color Depth 
 

10 Bit
10 Bit

Red (Std. Dev.) 
 

0.115
0.081

Green (Std. Dev.) 
 

0.123
0.091

Blue (Std. Dev.) 
 

0.133
0.072

Gray (Std. Dev.) 
 

0.097
0.074
Show Text 

Temporary Image Retention 
 

10
10

Image Retention Picture  

LG B9 OLED Image Retention Picture
LG C9 OLED 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%
Show Text 

Permanent Burn-In Risk 
 

2.0
2.0

Permanent Burn-In Risk 
 

Yes
Yes
Show Text 
Motion

Response Time 
 

9.9
9.9

Motion Blur Picture  

LG B9 OLED Motion Blur Picture
LG C9 OLED Motion Blur Picture

Response Time Chart  

LG B9 OLED Response Time Chart
LG C9 OLED Response Time Chart

80% Response Time 
 

0.2 ms
0.2 ms

100% Response Time 
 

1.6 ms
2.4 ms
Show Text 

Flicker-Free 
 

10
10

Backlight chart 
 

LG B9 OLED Backlight chart
LG C9 OLED Backlight chart

Flicker-Free 
 

No
No

PWM Dimming Frequency 
 

0 Hz
0 Hz
Show Text 

Black Frame Insertion (BFI) 
 

8.7
8.7

BFI Picture  

LG B9 OLED BFI Picture
LG C9 OLED BFI Picture

BFI Frequency Picture  

LG B9 OLED BFI Frequency Picture
LG C9 OLED BFI Frequency Picture

Optional BFI 
 

Yes
Yes

Min Flicker for 60 fps 
 

60 Hz
60 Hz

60 Hz for 60 fps 
 

Yes
Yes

120 Hz for 120 fps 
 

No
No

Min Flicker for 60 fps in Game Mode 
 

60 Hz
60 Hz
Show Text 

Motion Interpolation 
 

Motion Interpolation (30 fps) Picture  

LG B9 OLED Motion Interpolation (30 fps) Picture
LG C9 OLED Motion Interpolation (30 fps) Picture

Motion Interpolation (30 fps) 
 

Yes
Yes

Motion Interpolation (60 fps) Picture  

LG B9 OLED Motion Interpolation (60 fps) Picture
LG C9 OLED Motion Interpolation (60 fps) Picture

Motion Interpolation (60 fps) 
 

Yes
Yes
Show Text 

Stutter 
 

4.8
5.0

Frame Hold Time @ 24 fps 
 

40.1 ms
39.3 ms

Frame Hold Time @ 60 fps 
 

15.1 ms
14.3 ms
Show Text 

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
Show Text 

Variable Refresh Rate 
 

8.3
7.6

Native Refresh Rate 
 

120 Hz
120 Hz

Variable Refresh Rate 
 

Yes
Yes

HDMI Forum VRR 
 

Yes
Yes

FreeSync 
 

No
No

G-SYNC Compatible 
 

Yes (NVIDIA Certified)
Yes (NVIDIA Certified)

4k VRR Maximum 
 

60 Hz
60 Hz

4k VRR Minimum 
 

40 Hz
40 Hz

1080p VRR Maximum 
 

120 Hz
120 Hz

1080p VRR Minimum 
 

< 20 Hz
40 Hz

1440p VRR Maximum 
 

120 Hz
120 Hz

1440p VRR Minimum 
 

< 20 Hz
40 Hz

VRR Supported Connectors 
 

HDMI
HDMI
Show Text 
Inputs

Input Lag 
 

8.8
8.8

1080p @ 60 Hz 
 

13.8 ms
13.5 ms

1080p @ 60 Hz Outside Game Mode 
 

42.7 ms
100.8 ms

1440p @ 60 Hz 
 

13.8 ms
13.9 ms

4k @ 60 Hz 
 

13.7 ms
13.5 ms

4k @ 60 Hz + 10 bit HDR 
 

16.2 ms
13.4 ms

4k @ 60 Hz @ 4:4:4 
 

13.7 ms
13.3 ms

4k @ 60 Hz Outside Game Mode 
 

42.7 ms
50.6 ms

4k @ 60 Hz With Interpolation 
 

90.5 ms
96.7 ms

8k @ 60 Hz 
 

N/A
N/A

1080p @ 120 Hz 
 

7.0 ms
6.8 ms

1440p @ 120 Hz 
 

7.0 ms
6.6 ms

4k @ 120 Hz 
 

1080p with Variable Refresh Rate 
 

6.0 ms
6.3 ms

1440p with VRR 
 

6.4 ms
6.7 ms

4k with VRR 
 

9.1 ms
15.9 ms

8k with VRR 
 

N/A
N/A

Auto Low Latency Mode (ALLM) 
 

Yes
Yes
Show Text 

Supported Resolutions 
 

9.6
9.6

Resolution  

4k
4k

1080p @ 60 Hz @ 4:4:4 
 

Yes
Yes

1080p @ 120 Hz 
 

Yes (native support)
Yes (native support)

1440p @ 60 Hz 
 

Yes (forced resolution required)
Yes (forced resolution required)

1440p @ 120 Hz 
 

Yes (native support)
Yes (native support)

4k @ 60 Hz 
 

Yes
Yes

4k @ 60 Hz @ 4:4:4 
 

Yes
Yes

4k @ 120 Hz 
 

8k @ 30 Hz or 24 Hz 
 

No
No

8k @ 60 Hz 
 

No
No
Show Text 

Input Photos  

Side Inputs Picture  

LG B9 OLED Side Inputs Picture
LG C9 OLED Side Inputs Picture

Rear Inputs Picture  

LG B9 OLED Rear Inputs Picture
LG C9 OLED 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

Inputs Specifications  

HDR10 
 

Yes
Yes

HDR10+ 
 

No
No

Dolby Vision 
 

Yes
Yes

HLG 
 

Yes
Yes

3D 
 

No
No

HDMI 2.0 Full Bandwidth 
 

Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)

HDMI 2.1 
 

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)
Show Text 

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
Yes

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
Show Text 
Sound Quality

Frequency Response 
 

7.0
7.4

Frequency Response  

See details on graph tool
See details on graph tool

Low-Frequency Extension 
 

67.27 Hz
67.27 Hz

Std. Dev. @ 70 
 

3.01 dB
2.67 dB

Std. Dev. @ 80 
 

3.52 dB
2.74 dB

Std. Dev. @ Max 
 

6.51 dB
4.94 dB

Max 
 

87.6 dB SPL
87.8 dB SPL

Dynamic Range Compression 
 

4.78 dB
4.00 dB
Show Text 

Distortion 
 

7.4
6.0

Total Harmonic Distortion 
 

See details on graph tool
See details on graph tool

Weighted THD @ 80 
 

0.109
0.263

Weighted THD @ Max 
 

0.651
3.477

IMD @ 80 
 

2.12%
10.58%

IMD @ Max 
 

3.70%
25.15%
Show Text 
Smart Features

Interface 
 

8.5
8.5

Smart TV Picture  

LG B9 OLED Smart TV Picture
LG C9 OLED Smart TV Picture

Smart OS  

WebOS
WebOS

Version  

4.6
4.5

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
Show Text 

Ad-Free 
 

0.0
0.0

Ads Picture  

LG B9 OLED Ads Picture
LG C9 OLED Ads Picture

Ads 
 

Yes
Yes

Opt-out 
 

No
No

Suggested Content in Home 
 

Yes
Yes

Opt-out of Suggested Content 
 

No
No
Show Text 

Apps and Features 
 

8.0
8.0

Apps Picture  

LG B9 OLED Apps Picture
LG C9 OLED 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
Show Text 

Remote 
 

9.0
9.0

Remote Picture  

LG B9 OLED Remote Picture
LG C9 OLED 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
Show Text 

TV Controls  

Controls Picture  

LG B9 OLED Controls Picture
LG C9 OLED Controls Picture
Show Text 

In The Box  

In The Box Picture  

LG B9 OLED In The Box Picture
LG C9 OLED In The Box Picture
Show Text 

Misc  

Power Consumption  

79 W
89 W

Power Consumption (Max)  

159 W
171 W

Firmware  

03.60.19
03.50.22

Check Price

LG B9 OLED

LG C9 OLED

Comments

  1. Comparison

LG C9 OLED vs LG B9 OLED: Main Discussion

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