Sony A8G vs LG B9 OLED

Which TV Is Better?

Products

Sony A8G OLED
LG B9 OLED

Tested using Methodology v1.5

Updated Sep 04, 2021 12:49 AM

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Amazon.com

Tested using Methodology v1.5

Updated May 16, 2023 06:58 PM

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Amazon.com

Our Verdict

Sony A8G OLED

LG B9 OLED

The LG B9 OLED is a bit better than the Sony A8G OLED. The B9 has HDMI 2.1 on all four HDMI ports, as well as eARC. The B9 is better for gaming as it has a much lower input lag and supports HDMI Forum's new variable refresh rate technology, which is great news if you have an Xbox One.

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Variants

  • XBR55A8G (55")
  • XBR65A8G (65")
  • OLED55B9PUA (55")
  • OLED65B9PUA (65")
  • OLED77B9PUA (77")

Check Price

55"
XBR55A8G
Amazon.com
55"
OLED55B9PUA
SEE PRICE
Amazon.com
65"
XBR65A8G
SEE PRICE
Amazon.com
65"
OLED65B9PUA
SEE PRICE
Amazon.com
77"
 
77"
OLED77B9PUA
SEE PRICE
Amazon.com

Main Differences for
Mixed Usage

Threshold 

0.10

Mixed Usage 

8.5
8.7
No major differences between these TVs for mixed usage. See full list of tests below.

Full Comparison

Market Context

Market Context 
 

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Design

Style  

9.5
9.5

Design Picture  

Curved  

No
No
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Stand  

Stand Picture  

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Back  

Back Picture  

Wall Mount  

VESA 300x300
VESA 300x200
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Borders  

Borders Picture  

Borders  

0.39" (1.0 cm)
0.35" (0.9 cm)
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Thickness  

Thickness Picture  

Max Thickness  

2.09" (5.3 cm)
1.89" (4.8 cm)
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Build Quality 
 

9.5
8.5

Build quality picture  

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Picture Quality

Contrast 
 

10
10

Checkerboard Picture  

Native Contrast 
 

Inf : 1
Inf : 1

Contrast with local dimming 
 

N/A
N/A
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Local Dimming 
 

10
10

Local Dimming Video  

Local Dimming 
 

No
No

Backlight 
 

No Backlight
No Backlight
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SDR Peak Brightness 
 

6.4
7.1

SDR Real Scene Peak Brightness 
 

278 cd/m²
328 cd/m²

SDR Peak 2% Window 
 

352 cd/m²
418 cd/m²

SDR Peak 10% Window 
 

350 cd/m²
418 cd/m²

SDR Peak 25% Window 
 

352 cd/m²
387 cd/m²

SDR Peak 50% Window 
 

265 cd/m²
328 cd/m²

SDR Peak 100% Window 
 

155 cd/m²
195 cd/m²

SDR Sustained 2% Window 
 

302 cd/m²
403 cd/m²

SDR Sustained 10% Window 
 

285 cd/m²
404 cd/m²

SDR Sustained 25% Window 
 

302 cd/m²
373 cd/m²

SDR Sustained 50% Window 
 

251 cd/m²
318 cd/m²

SDR Sustained 100% Window 
 

154 cd/m²
190 cd/m²

SDR ABL 
 

0.044
0.048
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HDR Peak Brightness 
 

6.8
6.4

HDR Real Scene Peak Brightness 
 

616 cd/m²
526 cd/m²

HDR Peak 2% Window 
 

768 cd/m²
603 cd/m²

HDR Peak 10% Window 
 

633 cd/m²
603 cd/m²

HDR Peak 25% Window 
 

452 cd/m²
446 cd/m²

HDR Peak 50% Window 
 

269 cd/m²
296 cd/m²

HDR Peak 100% Window 
 

138 cd/m²
140 cd/m²

HDR Sustained 2% Window 
 

473 cd/m²
576 cd/m²

HDR Sustained 10% Window 
 

393 cd/m²
579 cd/m²

HDR Sustained 25% Window 
 

390 cd/m²
427 cd/m²

HDR Sustained 50% Window 
 

267 cd/m²
282 cd/m²

HDR Sustained 100% Window 
 

137 cd/m²
135 cd/m²

HDR ABL 
 

0.075
0.090
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Gray Uniformity 
 

8.9
8.6

50% Uniformity Picture  

50% Std. Dev. 
 

0.774%
0.940%

50% DSE 
 

0.114%
0.128%

5% Uniformity Picture  

5% Std. Dev. 
 

0.630%
0.771%

5% DSE 
 

0.103%
0.114%
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Viewing Angle 
 

8.7
8.6

Viewing Angle Video  

Chroma Graph  

Color Washout 
 

47°
47°

Hue Graph  

Color Shift 
 

32°
29°

Lightness Graph  

Brightness Loss 
 

66°
64°

Black Level Raise 
 

70°
70°

Gamma Shift 
 

66°
65°
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Black Uniformity 
 

10
10

Native Black Uniformity Picture  

Native Std. Dev. 
 

0.240%
0.242%

Black Uniformity Picture with Local Dimming  

Std. Dev. w/ L.D. 
 

N/A
N/A
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Reflections 
 

9.3
9.3

Reflections Picture  

Average Room Off Picture  

Bright Room Off Picture  

Screen Finish 
 

Glossy
Glossy

Total Reflections 
 

1.4%
1.5%

Indirect Reflections 
 

0.2%
0.2%

Calculated Direct Reflections 
 

1.3%
1.3%
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Pre Calibration 
 

7.4
4.9

Pre White Balance Picture  

Pre Gamma Curve Picture  

Pre Color Picture  

White Balance dE 
 

4.07
5.79

Color dE 
 

1.96
4.27

Gamma 
 

2.13
2.20

Color Temperature 
 

6,082 K
5,502 K

Picture Mode 
 

Custom
Expert (Dark Room)

Color Temp Setting 
 

Expert 1
Warm 2

Gamma Setting 
 

0
2.2
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Post Calibration 
 

9.3
9.5

Post White Balance Picture  

Post Gamma Curve Picture  

Post Color Picture  

White Balance dE 
 

0.44
0.14

Color dE 
 

1.44
1.33

Gamma 
 

2.18
2.20

Color Temperature 
 

6,487 K
6,502 K

White Balance Calibration 
 

10 point
22 point

Color Calibration 
 

No
Yes

Auto-Calibration Function 
 

Yes
No
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480p Input 
 

8.0
8.0

480p Picture  

Show Text 

720p Input 
 

8.0
8.0

720p Picture  

Show Text 

1080p Input 
 

9.0
9.0

1080p Picture  

Show Text 

4k Input 
 

10
10

4k Picture  

Show Text 

8k Input 
 

0.0
0.0

8k Picture  

Pixels 
 

Pixels Picture  

Type  

OLED
OLED

Sub-Type 
 

WRGB
WRGB
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Color Gamut 
 

8.5
8.5

Wide Color Gamut 
 

Yes
Yes

Color Gamut DCI-P3 Picture  

DCI P3 xy 
 

96.95%
96.27%

DCI P3 uv 
 

98.32%
97.06%

Color Gamut Rec.2020 Picture  

Rec 2020 xy 
 

71.46%
70.84%

Rec 2020 uv 
 

75.30%
74.18%

EOTF  

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Color Volume 
 

6.3
7.6

P3 Color Volume ITP Picture  

Normalized DCI P3 Coverage ITP 
 

69.4%
86.6%

10,000 cd/m² DCI P3 Coverage ITP 
 

37.8%
43.8%

2020 Color Volume ITP Picture  

Normalized Rec 2020 Coverage ITP 
 

57.2%
65.0%

10,000 cd/m² Rec 2020 Coverage ITP 
 

30.9%
32.5%
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Gradient 
 

8.8
7.7

Gradient Picture  

Color Depth 
 

10 Bit
10 Bit

Red (Std. Dev.) 
 

0.092
0.115

Green (Std. Dev.) 
 

0.093
0.123

Blue (Std. Dev.) 
 

0.081
0.133

Gray (Std. Dev.) 
 

0.075
0.097
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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%
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Permanent Burn-In Risk 
 

2.0
2.0

Permanent Burn-In Risk 
 

Yes
Yes
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Motion

Response Time 
 

9.9
9.9

Motion Blur Picture  

Response Time Chart  

80% Response Time 
 

0.2 ms
0.2 ms

100% Response Time 
 

2.4 ms
1.6 ms
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Flicker-Free 
 

10
10

Backlight chart 
 

Flicker-Free 
 

No
No

PWM Dimming Frequency 
 

0 Hz
0 Hz
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Black Frame Insertion (BFI) 
 

8.7
8.7

BFI Picture  

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
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Motion Interpolation 
 

Motion Interpolation (30 fps) Picture  

Motion Interpolation (30 fps) 
 

Yes
Yes

Motion Interpolation (60 fps) Picture  

Motion Interpolation (60 fps) 
 

Yes
Yes
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Stutter 
 

5.0
4.8

Frame Hold Time @ 24 fps 
 

39.3 ms
40.1 ms

Frame Hold Time @ 60 fps 
 

14.3 ms
15.1 ms
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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 
 

0.0
8.3

Native Refresh Rate 
 

120 Hz
120 Hz

Variable Refresh Rate 
 

No
Yes

HDMI Forum VRR 
 

No
Yes

FreeSync 
 

No
No

G-SYNC Compatible 
 

No
Yes (NVIDIA Certified)

4k VRR Maximum 
 

N/A
60 Hz

4k VRR Minimum 
 

No VRR support
40 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 Supported Connectors 
 

No VRR support
HDMI
Show Text 
Inputs

Input Lag 
 

6.3
8.8

1080p @ 60 Hz 
 

48.1 ms
13.8 ms

1080p @ 60 Hz Outside Game Mode 
 

110.8 ms
42.7 ms

1440p @ 60 Hz 
 

31.3 ms
13.8 ms

4k @ 60 Hz 
 

31.4 ms
13.7 ms

4k @ 60 Hz + 10 bit HDR 
 

31.4 ms
16.2 ms

4k @ 60 Hz @ 4:4:4 
 

31.4 ms
13.7 ms

4k @ 60 Hz Outside Game Mode 
 

94.1 ms
42.7 ms

4k @ 60 Hz With Interpolation 
 

85.9 ms
90.5 ms

8k @ 60 Hz 
 

N/A
N/A

1080p @ 120 Hz 
 

21.2 ms
7.0 ms

1440p @ 120 Hz 
 

21.2 ms
7.0 ms

4k @ 120 Hz 
 

N/A

1080p with Variable Refresh Rate 
 

N/A
6.0 ms

1440p with VRR 
 

N/A
6.4 ms

4k with VRR 
 

N/A
9.1 ms

8k with VRR 
 

N/A
N/A

Auto Low Latency Mode (ALLM) 
 

No
Yes
Show Text 

Supported Resolutions 
 

9.6
9.6

Resolution  

4k
4k

1080p @ 60 Hz @ 4:4:4 
 

Yes
Yes

1080p @ 120 Hz 
 

Yes (forced resolution required)
Yes (native support)

1440p @ 60 Hz 
 

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

1440p @ 120 Hz 
 

Yes (forced resolution required)
Yes (native support)

4k @ 60 Hz 
 

Yes
Yes

4k @ 60 Hz @ 4:4:4 
 

Yes
Yes

4k @ 120 Hz 
 

No

8k @ 30 Hz or 24 Hz 
 

No
No

8k @ 60 Hz 
 

No
No
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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 (adapter required, not incl.)
1 (incl. adapter)

Tuner (Cable/Ant)  

1
1

Ethernet  

1
1

DisplayPort  

0
0

IR In  

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

HDMI 2.1 
 

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)

USB 3.0 
 

Yes (1)
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 3)
Yes (HDMI 2)

eARC support 
 

No
Yes

Dolby Atmos via TrueHD via eARC 
 

No
Yes

DTS:X via DTS-HD MA via eARC 
 

No
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 
 

6.7
7.0

Frequency Response  

See details
See details

Low-Frequency Extension 
 

80.00 Hz
67.27 Hz

Std. Dev. @ 70 
 

4.45 dB
3.01 dB

Std. Dev. @ 80 
 

4.17 dB
3.52 dB

Std. Dev. @ Max 
 

6.72 dB
6.51 dB

Max 
 

87.9 dB SPL
87.6 dB SPL

Dynamic Range Compression 
 

3.59 dB
4.78 dB
Show Text 

Distortion 
 

7.0
7.4

Total Harmonic Distortion 
 

See details
See details

Weighted THD @ 80 
 

0.070
0.109

Weighted THD @ Max 
 

6.499
0.651

IMD @ 80 
 

0.80%
2.12%

IMD @ Max 
 

5.28%
3.70%
Show Text 
Smart Features

Interface 
 

7.5
8.5

Smart TV Picture  

Smart OS  

Android TV
WebOS

Version  

8.0
4.6

Ease of Use 
 

Average
Easy

Smoothness 
 

Average
Average

Time Taken to Select YouTube 
 

3 s
2 s

Time Taken to Change Backlight 
 

6 s
6 s

Advanced Options 
 

Many
Many
Show Text 

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 
 

Yes
No
Show Text 

Apps and Features 
 

9.0
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
Show Text 

Remote 
 

8.0
9.0

Remote Picture  

Size 
 

Large
Large

Voice Control 
 

Many Features
Many Features

CEC Menu Control 
 

Yes
Yes

Other Smart Features 
 

No
Yes

Remote App  

Android TV
LG TV Plus
Show Text 

TV Controls  

Controls Picture  

Show Text 

In The Box  

In The Box Picture  

Show Text 

Misc  

Power Consumption  

87 W
79 W

Power Consumption (Max)  

174 W
159 W

Firmware  

PKG6.6046.0229NAA
03.60.19

Check Price

55"
XBR55A8G
Amazon.com
55"
OLED55B9PUA
SEE PRICE
Amazon.com
65"
XBR65A8G
SEE PRICE
Amazon.com
65"
OLED65B9PUA
SEE PRICE
Amazon.com
77"
 
77"
OLED77B9PUA
SEE PRICE
Amazon.com

Sony A8G OLED

LG B9 OLED

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