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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
    7. Temperature
  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. Rear Inputs
    5. Total Inputs
    6. Inputs Specifications
    7. 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. Remote App
    6. TV Controls
    7. In The Box
    8. Misc
  11. Comments

LG SJ8500 vs LG SK8000

Side-by-Side Comparison

Products

LG SJ8500
LG SK8000

Tested using Methodology v1.2

Updated Sep 04, 2021 05:34 AM

SEE PRICE
Amazon.com

Tested using Methodology v1.5

Updated Feb 22, 2024 02:39 PM

SEE PRICE
Walmart.com
LG SJ8500 Picture
LG SK8000 Picture

Variants

  • 55SJ8500 (55")
  • 65SJ8500 (65")
  • 49SK8000 (49")
  • 55SK8000 (55")
  • 65SK8000 (65")

Our Verdict

LG SJ8500

LG SK8000

The LG SK8000 is a bit better than the LG SJ8500. The LG SK8000 has a faster response time, so the image is crisper and the fast-moving objects have less blur trail. It also has an optional black frame insertion feature that allows it to make the image even crisper.

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Main Differences for
Mixed Usage

Threshold 

0.10

Mixed Usage 

7.5
6.9

SDR Peak Brightness 
 

6.6
5.5

Full Comparison

Market Context
Design

Style  

9.5
9.5

Design Picture  

LG SJ8500 Design Picture
LG SK8000 Design Picture

Curved  

No
No
Show Text 

Stand  

Stand Picture  

LG SJ8500 Stand Picture
LG SK8000 Stand Picture
Show Text 

Back  

Back Picture  

LG SJ8500 Back Picture
LG SK8000 Back Picture

Wall Mount  

VESA 300x300
VESA 300x300
Show Text 

Borders  

Borders Picture  

LG SJ8500 Borders Picture
LG SK8000 Borders Picture

Borders  

0.39" (1.0 cm)
0.47" (1.2 cm)
Show Text 

Thickness  

Thickness Picture  

LG SJ8500 Thickness Picture
LG SK8000 Thickness Picture

Max Thickness  

2.56" (6.5 cm)
2.64" (6.7 cm)
Show Text 

Build Quality 
 

7.0
7.5

Build quality picture  

LG SJ8500 Build quality picture
LG SK8000 Build quality picture
Show Text 

Temperature  

Temperature picture  

LG SJ8500 Temperature picture

Maximum Temperature 
 

97 °F (36 °C)

Average Temperature 
 

88 °F (31 °C)
Show Text 
Picture Quality

Contrast 
 

6.5
6.2

Checkerboard Picture  

LG SJ8500 Checkerboard Picture
LG SK8000 Checkerboard Picture

Native Contrast 
 

1,379 : 1
1,098 : 1

Contrast with local dimming 
 

1,423 : 1
1,100 : 1
Show Text 

Local Dimming 
 

1.5
1.5

Local Dimming Video  

Local Dimming 
 

Yes
Yes

Backlight 
 

Edge
Edge
Show Text 

SDR Peak Brightness 
 

6.6
5.5

SDR Real Scene Peak Brightness 
 

215 cd/m²
240 cd/m²

SDR Peak 2% Window 
 

246 cd/m²
81 cd/m²

SDR Peak 10% Window 
 

275 cd/m²
169 cd/m²

SDR Peak 25% Window 
 

277 cd/m²
249 cd/m²

SDR Peak 50% Window 
 

277 cd/m²
280 cd/m²

SDR Peak 100% Window 
 

278 cd/m²
280 cd/m²

SDR Sustained 2% Window 
 

245 cd/m²
81 cd/m²

SDR Sustained 10% Window 
 

274 cd/m²
169 cd/m²

SDR Sustained 25% Window 
 

276 cd/m²
248 cd/m²

SDR Sustained 50% Window 
 

276 cd/m²
279 cd/m²

SDR Sustained 100% Window 
 

276 cd/m²
279 cd/m²

SDR ABL 
 

0.008
0.083
Show Text 

HDR Peak Brightness 
 

6.0
5.4

HDR Real Scene Peak Brightness 
 

243 cd/m²
271 cd/m²

HDR Peak 2% Window 
 

531 cd/m²
523 cd/m²

HDR Peak 10% Window 
 

609 cd/m²
523 cd/m²

HDR Peak 25% Window 
 

496 cd/m²
412 cd/m²

HDR Peak 50% Window 
 

364 cd/m²
333 cd/m²

HDR Peak 100% Window 
 

295 cd/m²
332 cd/m²

HDR Sustained 2% Window 
 

522 cd/m²
233 cd/m²

HDR Sustained 10% Window 
 

210 cd/m²
277 cd/m²

HDR Sustained 25% Window 
 

278 cd/m²
330 cd/m²

HDR Sustained 50% Window 
 

292 cd/m²
331 cd/m²

HDR Sustained 100% Window 
 

294 cd/m²
331 cd/m²

HDR ABL 
 

0.051
0.024
Show Text 

Gray Uniformity 
 

6.8
7.0

50% Uniformity Picture  

LG SJ8500 50% Uniformity Picture
LG SK8000 50% Uniformity Picture

50% Std. Dev. 
 

5.590%
4.481%

50% DSE 
 

0.202%
0.196%

5% Uniformity Picture  

LG SJ8500 5% Uniformity Picture
LG SK8000 5% Uniformity Picture

5% Std. Dev. 
 

0.674%
0.542%

5% DSE 
 

0.110%
0.107%
Show Text 

Viewing Angle 
 

6.1
6.9

Viewing Angle Video  

Chroma Graph  

LG SK8000 Chroma Graph

Color Shift Picture  

LG SJ8500 Color Shift Picture

Color Shift 
 

21°

Color Washout 
 

27°

Brightness Picture  

LG SJ8500 Brightness Picture

Brightness 
 

27°

Hue Graph  

LG SK8000 Hue Graph

Black Level Picture  

LG SJ8500 Black Level Picture

Color Shift 
 

44°

Lightness Graph  

LG SK8000 Lightness Graph

Black Level 
 

75°

Brightness Loss 
 

32°

Black Level Raise 
 

70°

Gamma Shift 
 

32°
Show Text 

Black Uniformity 
 

3.7
3.8

Native Black Uniformity Picture  

LG SJ8500 Native Black Uniformity Picture
LG SK8000 Native Black Uniformity Picture

Native Std. Dev. 
 

3.075%
2.851%

Black Uniformity Picture with Local Dimming  

LG SJ8500 Black Uniformity Picture with Local Dimming
LG SK8000 Black Uniformity Picture with Local Dimming

Std. Dev. w/ L.D. 
 

5.078%
5.223%
Show Text 

Reflections 
 

8.6
8.6

Reflections Picture  

LG SJ8500 Reflections Picture
LG SK8000 Reflections Picture

Average Room Off Picture  

LG SJ8500 Average Room Off Picture
LG SK8000 Average Room Off Picture

Bright Room Off Picture  

LG SJ8500 Bright Room Off Picture
LG SK8000 Bright Room Off Picture

Screen Finish 
 

Semi-gloss
Semi-gloss

Total Reflections 
 

3.4%
2.8%

Indirect Reflections 
 

0.5%
0.5%

Calculated Direct Reflections 
 

2.4%
Show Text 

Pre Calibration 
 

6.6
8.4

Pre White Balance Picture  

LG SJ8500 Pre White Balance Picture
LG SK8000 Pre White Balance Picture

Pre Gamma Curve Picture  

LG SJ8500 Pre Gamma Curve Picture
LG SK8000 Pre Gamma Curve Picture

Pre Color Picture  

LG SJ8500 Pre Color Picture
LG SK8000 Pre Color Picture

White Balance dE 
 

3.82
2.56

Color dE 
 

3.95
1.83

Gamma 
 

2.35
2.14

Color Temperature 
 

6,245 K
6,501 K

Picture Mode 
 

Expert (Dark Room)

Color Temp Setting 
 

Warm 2

Gamma Setting 
 

2.2
Show Text 

Post Calibration 
 

9.5
9.5

Post White Balance Picture  

LG SJ8500 Post White Balance Picture
LG SK8000 Post White Balance Picture

Post Gamma Curve Picture  

LG SJ8500 Post Gamma Curve Picture
LG SK8000 Post Gamma Curve Picture

Post Color Picture  

LG SJ8500 Post Color Picture
LG SK8000 Post Color Picture

Picture Mode 
 

White Balance dE 
 

0.15
0.10

Color dE 
 

1.39
1.37

Gamma 
 

2.20
2.19

Color Temperature 
 

6,504 K
6,509 K

White Balance Calibration 
 

20 point

Color Calibration 
 

Yes

Auto-Calibration Function 
 

Yes
Show Text 

480p Input 
 

8.0
8.0

480p Picture  

LG SJ8500 480p Picture
LG SK8000 480p Picture
Show Text 

720p Input 
 

8.0
8.0

720p Picture  

LG SJ8500 720p Picture
LG SK8000 720p Picture
Show Text 

1080p Input 
 

9.0
9.0

1080p Picture  

LG SJ8500 1080p Picture
LG SK8000 1080p Picture
Show Text 

4k Input 
 

10
10

4k Picture  

LG SJ8500 4k Picture
LG SK8000 4k Picture
Show Text 

8k Input 
 

0.0

8k Picture  

LG SK8000 8k Picture

Pixels 
 

Pixels Picture  

LG SJ8500 Pixels Picture
LG SK8000 Pixels Picture

Type  

LED
LED

Sub-Type 
 

IPS
IPS
Show Text 

Color Gamut 
 

7.7
7.5

Wide Color Gamut 
 

Yes
No

Color Gamut DCI-P3 Picture  

LG SJ8500 Color Gamut DCI-P3 Picture
LG SK8000 Color Gamut DCI-P3 Picture

DCI P3 xy 
 

83.66%
83.88%

DCI P3 uv 
 

90.20%
88.83%

Color Gamut Rec.2020 Picture  

LG SJ8500 Color Gamut Rec.2020 Picture
LG SK8000 Color Gamut Rec.2020 Picture

Rec 2020 xy 
 

62.41%
61.06%

Rec 2020 uv 
 

71.02%
66.45%

EOTF  

LG SJ8500 EOTF
LG SK8000 EOTF
Show Text 

Color Volume 
 

7.0
6.1

P3 Color Volume ITP Picture  

LG SJ8500 P3 Color Volume ITP Picture
LG SK8000 P3 Color Volume ITP Picture

Normalized DCI P3 Coverage ITP 
 

78.9%
66.4%

10,000 cd/m² DCI P3 Coverage ITP 
 

39.3%
30.3%

2020 Color Volume ITP Picture  

LG SJ8500 2020 Color Volume ITP Picture
LG SK8000 2020 Color Volume ITP Picture

Normalized Rec 2020 Coverage ITP 
 

60.0%
54.5%

10,000 cd/m² Rec 2020 Coverage ITP 
 

29.6%
25.7%
Show Text 

Gradient 
 

0.0
8.6

Gradient Picture  

LG SJ8500 Gradient Picture
LG SK8000 Gradient Picture

Color Depth 
 

10 Bit
10 Bit

Red (Std. Dev.) 
 

0.098

Green (Std. Dev.) 
 

0.114

Blue (Std. Dev.) 
 

0.076

Gray (Std. Dev.) 
 

0.082
Show Text 

Temporary Image Retention 
 

8.8
7.4

Image Retention Picture  

LG SJ8500 Image Retention Picture
LG SK8000 Image Retention Picture

IR after 0 min recovery 
 

0.43%
0.85%

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 
 

10
10

Permanent Burn-In Risk 
 

No
No
Show Text 
Motion

Response Time 
 

8.4
8.1

Motion Blur Picture  

LG SJ8500 Motion Blur Picture
LG SK8000 Motion Blur Picture

Response Time Chart  

LG SJ8500 Response Time Chart
LG SK8000 Response Time Chart

80% Response Time 
 

6.0 ms
4.0 ms

100% Response Time 
 

14.3 ms
13.0 ms
Show Text 

Flicker-Free 
 

4.0
4.0

Backlight chart 
 

LG SJ8500 Backlight chart
LG SK8000 Backlight chart

Flicker-Free 
 

No
No

PWM Dimming Frequency 
 

120 Hz
120 Hz
Show Text 

Black Frame Insertion (BFI) 
 

6.0
10

BFI Picture  

LG SJ8500 BFI Picture
LG SK8000 BFI Picture

BFI Frequency Picture  

LG SJ8500 BFI Frequency Picture
LG SK8000 BFI Frequency Picture

Optional BFI 
 

No
Yes

Min Flicker for 60 fps 
 

120 Hz
60 Hz

60 Hz for 60 fps 
 

No
Yes

120 Hz for 120 fps 
 

Yes
Yes

Min Flicker for 60 fps in Game Mode 
 

120 Hz
60 Hz
Show Text 

Motion Interpolation 
 

Motion Interpolation (30 fps) Picture  

LG SJ8500 Motion Interpolation (30 fps) Picture
LG SK8000 Motion Interpolation (30 fps) Picture

Motion Interpolation (30 fps) 
 

Yes
Yes

Motion Interpolation (60 fps) Picture  

LG SJ8500 Motion Interpolation (60 fps) Picture
LG SK8000 Motion Interpolation (60 fps) Picture

Motion Interpolation (60 fps) 
 

Yes
Yes
Show Text 

Stutter 
 

7.6
7.3

Frame Hold Time @ 24 fps 
 

27.4 ms
28.7 ms

Frame Hold Time @ 60 fps 
 

2.4 ms
3.7 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 
 

0.0
0.0

Native Refresh Rate 
 

120 Hz
120 Hz (except 49")

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
Show Text 
Inputs

Input Lag 
 

9.6
8.6

1080p @ 60 Hz 
 

15.0 ms
14.2 ms

1080p @ 60 Hz Outside Game Mode 
 

40.2 ms
34.7 ms

1440p @ 60 Hz 
 

N/A

4k @ 60 Hz 
 

15.1 ms
14.2 ms

4k @ 60 Hz + 10 bit HDR 
 

15.0 ms
22.5 ms

4k @ 60 Hz @ 4:4:4 
 

15.1 ms
14.3 ms

4k @ 60 Hz Outside Game Mode 
 

57.0 ms
43.1 ms

4k @ 60 Hz With Interpolation 
 

98.6 ms
84.7 ms

8k @ 60 Hz 
 

N/A

1080p @ 120 Hz 
 

14.0 ms

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 
 

14.9 ms

4k @ 60Hz @ 4:4:4 + 8 bit HDR 
 

15.0 ms
Show Text 

Supported Resolutions 
 

8.3
8.3

Resolution  

4k
4k

1080p @ 60 Hz @ 4:4:4 
 

Yes
Yes

1080p @ 120 Hz 
 

Yes (native support)
Yes (native support)

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
Show Text 

Input Photos  

Side Inputs Picture  

LG SJ8500 Side Inputs Picture
LG SK8000 Side Inputs Picture

Rear Inputs Picture  

LG SJ8500 Rear Inputs Picture
LG SK8000 Rear Inputs Picture
Show Text 

Rear Inputs  

Rear Inputs Picture  

LG SJ8500 Rear Inputs Picture
LG SK8000 Rear Inputs Picture

Total Inputs  

HDMI  

4
4

USB  

3
3

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 (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

Dolby Vision 
 

Yes
Yes

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

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

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)

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
Show Text 
Sound Quality

Frequency Response 
 

7.3
5.9

Frequency Response  

See details on graph tool
See details on graph tool

Low-Frequency Extension 
 

71.27 Hz
84.76 Hz

Std. Dev. @ 70 
 

3.02 dB
3.91 dB

Std. Dev. @ 80 
 

3.00 dB
4.70 dB

Std. Dev. @ Max 
 

6.29 dB
6.81 dB

Max 
 

93.8 dB SPL
84.0 dB SPL

Dynamic Range Compression 
 

6.26 dB
4.79 dB
Show Text 

Distortion 
 

7.3
6.4

Total Harmonic Distortion 
 

See details on graph tool
See details on graph tool

Weighted THD @ 80 
 

0.034
0.565

Weighted THD @ Max 
 

0.535
1.040

IMD @ 80 
 

1.05%
3.13%

IMD @ Max 
 

15.25%
7.93%
Show Text 
Smart Features

Interface 
 

8.5
8.5

Smart TV Picture  

LG SJ8500 Smart TV Picture
LG SK8000 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 
 

2 s
2 s

Time Taken to Change Backlight 
 

8 s
10 s

Advanced Options 
 

Many
Many
Show Text 

Ad-Free 
 

0.0
0.0

Ads Picture  

LG SJ8500 Ads Picture
LG SK8000 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 SJ8500 Apps Picture
LG SK8000 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
Show Text 

Remote 
 

9.0
9.0

Remote Picture  

LG SJ8500 Remote Picture
LG SK8000 Remote Picture

Size 
 

Large
Large

Voice Control 
 

Content Search Only
Many Features

CEC Menu Control 
 

Yes
Yes

Other Smart Features 
 

Yes
Yes

Remote App  

LG TV Plus
Show Text 

Remote App 
 

7.0

Remote App Picture  

LG SJ8500 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
Show Text 

TV Controls  

Controls Picture  

LG SJ8500 Controls Picture
LG SK8000 Controls Picture
Show Text 

In The Box  

In The Box Picture  

LG SJ8500 In The Box Picture
LG SK8000 In The Box Picture
Show Text 

Misc  

Power Consumption  

61 W
56 W

Power Consumption (Max)  

128 W
120 W

Firmware  

03.60.09
03.00.62

LG SJ8500

LG SK8000

Comments

  1. Comparison

LG SJ8500 vs LG SK8000: Main Discussion

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