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- Table of Contents
- Top
- Main Differences
- Market Context
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
TCL 6 Series 2018 vs TCL 4 Series 2019
Side-by-Side Comparison
Products
TCL 6 Series 2018
TCL 4 Series 2019
Tested using Methodology v1.5
Updated Sep 03, 2021 10:59 PM
SEE PRICE
Amazon.comTested using Methodology v1.6
Updated May 26, 2022 12:48 PM
SEE PRICE
Amazon.com
TypeLED
Sub-TypeVA
Resolution4k
TypeLED
Sub-TypeVA
Resolution4k
Variants
- 55R617 (55")
- 65R617 (65")
- 75R617 (75")
- 43S425 (43")
- 49S425 (49")
- 50S425 (50")
- 55S425 (55")
- 65S425 (65")
- 75S425 (75")
Our Verdict
TCL 6 Series 2018
TCL 4 Series 2019
The TCL 6 Series R617 is much better than the TCL 4 Series S425. The TCL R617 has better dark room performance, thanks to its local dimming feature, and better black uniformity. The TCL 6 Series can get brighter and has a better color leading to better HDR performance. The R617 can display judder-free movies, whereas the TCL S425 has a lower input lag, great for games, and a little faster response time, so motion looks slightly crisper.
Check Price
43"
43"
43S425
Searching
Finding store49"
49"
49S425
Searching
Finding store50"
50"
50S425
Searching
Finding store55"
55R617
Searching
Finding store55"
55S425
Searching
Finding store65"
65R617
Searching
Finding store65"
65S425
Searching
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75R617
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Finding store75"
75S425
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Finding storeNotice: Two or more of the products selected have been tested with different test methodologies, so some of the results below aren't directly comparable. Learn how our test benches and scoring system work, and read more about the latest changes to our TVs test methodology.
Main Differences for
Threshold
Mixed Usage
7.7
6.7
Local Dimming
6.0
0.0
SDR Peak Brightness
8.9
4.4
24p Judder
10
5.6
Full Comparison
Market Context
Design
Style
Design Picture
Curved
No
No
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 200x200
VESA 100x100
Borders
Borders Picture
Borders
0.47" (1.2 cm)
0.59" (1.5 cm)
Thickness
Thickness Picture
Max Thickness
2.95" (7.5 cm)
2.91" (7.4 cm)
Build Quality
7.0
6.5
Build quality picture
Picture Quality
Contrast
8.9
9.1
Checkerboard Picture
Native Contrast
5,182 : 1
6,054 : 1
Contrast with local dimming
6,052 : 1
N/A
SDR Brightness
8.9
4.4
Real Scene Peak Brightness
701 cd/m²
168 cd/m²
Peak 2% Window
881 cd/m²
142 cd/m²
Peak 10% Window
984 cd/m²
177 cd/m²
Peak 25% Window
1,161 cd/m²
177 cd/m²
Peak 50% Window
876 cd/m²
177 cd/m²
Peak 100% Window
676 cd/m²
177 cd/m²
Sustained 2% Window
874 cd/m²
141 cd/m²
Sustained 10% Window
979 cd/m²
177 cd/m²
Sustained 25% Window
1,155 cd/m²
177 cd/m²
Sustained 50% Window
874 cd/m²
177 cd/m²
Sustained 100% Window
675 cd/m²
177 cd/m²
Automatic Brightness Limiting (ABL)
0.027
0.017
Local Dimming
6.0
0.0
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
Yes
No
Backlight
Full-Array
Direct
Local Dimming In Game Mode
0.0
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
No
Backlight
Direct
HDR Brightness
8.5
4.1
EOTF
Real Scene Highlight
840 cd/m²
183 cd/m²
Peak 2% Window
908 cd/m²
85 cd/m²
Peak 10% Window
1,009 cd/m²
191 cd/m²
Peak 25% Window
1,173 cd/m²
191 cd/m²
Peak 50% Window
879 cd/m²
191 cd/m²
Peak 100% Window
674 cd/m²
191 cd/m²
Sustained 2% Window
903 cd/m²
85 cd/m²
Sustained 10% Window
1,006 cd/m²
190 cd/m²
Sustained 25% Window
1,165 cd/m²
191 cd/m²
Sustained 50% Window
871 cd/m²
191 cd/m²
Sustained 100% Window
673 cd/m²
191 cd/m²
Automatic Brightness Limiting (ABL)
0.027
0.059
HDR Brightness In Game Mode
4.1
Game Mode EOTF
Real Scene Highlight
182 cd/m²
Peak 2% Window
85 cd/m²
Peak 10% Window
190 cd/m²
Peak 25% Window
191 cd/m²
Peak 50% Window
191 cd/m²
Peak 100% Window
191 cd/m²
Sustained 2% Window
85 cd/m²
Sustained 10% Window
190 cd/m²
Sustained 25% Window
191 cd/m²
Sustained 50% Window
191 cd/m²
Sustained 100% Window
191 cd/m²
Automatic Brightness Limiting (ABL)
0.059
Gray Uniformity
6.3
6.8
50% Uniformity Picture
50% Std. Dev.
4.670%
2.926%
50% DSE
0.229%
0.203%
5% Uniformity Picture
5% Std. Dev.
1.797%
3.116%
5% DSE
0.127%
0.112%
Black Uniformity
7.8
7.3
Native Black Uniformity Picture
Native Std. Dev.
1.006%
1.142%
Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
0.746%
N/A
Viewing Angle
5.1
4.8
Viewing Angle Video
Chroma Graph
Color Washout
21°
19°
Hue Graph
Color Shift
32°
23°
Lightness Graph
Brightness Loss
29°
27°
Black Level Raise
15°
15°
Gamma Shift
14°
12°
Reflections
7.1
7.4
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Semi-gloss
Semi-gloss
Total Reflections
5.7%
5.3%
Indirect Reflections
0.7%
0.6%
Calculated Direct Reflections
5.0%
4.7%
Pre Calibration
7.6
5.9
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
3.15
3.36
Color dE
2.33
5.69
Gamma
2.21
2.33
Color Temperature
5,979 K
6,130 K
Picture Mode
Movie
Movie
Color Temp Setting
Warm
Warm
Gamma Setting
2.2
2.2
Post Calibration
9.6
9.0
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.31
0.50
Color dE
0.62
2.10
Gamma
2.20
2.22
Color Temperature
6,484 K
6,532 K
White Balance Calibration
11 point
11 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
9.5
10
4k Picture
8k Input
0.0
0.0
8k Picture
Pixels
Pixels Picture
Type
LED
LED
Sub-Type
VA
VA
Color Gamut
7.8
7.2
Wide Color Gamut
Yes
No
Color Gamut DCI-P3 Picture
DCI P3 xy
88.57%
80.17%
DCI P3 uv
90.93%
86.24%
Color Gamut Rec.2020 Picture
Rec 2020 xy
64.25%
57.74%
Rec 2020 uv
67.39%
63.53%
EOTF
Color Volume
7.4
6.4
P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
83.9%
70.9%
10,000 cd/m² DCI P3 Coverage ITP
48.7%
22.8%
2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
63.2%
55.7%
10,000 cd/m² Rec 2020 Coverage ITP
36.5%
17.8%
Gradient
7.8
8.3
Gradient Picture
Color Depth
10 Bit
10 Bit
Red (Std. Dev.)
0.121
0.099
Green (Std. Dev.)
0.116
0.109
Blue (Std. Dev.)
0.099
0.084
Gray (Std. Dev.)
0.123
0.109
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
10
10
Permanent Burn-In Risk
No
No
Motion
Response Time
7.6
8.1
Motion Blur Picture
Response Time Chart
80% Response Time
6.3 ms
4.7 ms
100% Response Time
12.4 ms
12.1 ms
Flicker-Free
7.9
4.0
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
480 Hz
120 Hz
Black Frame Insertion (BFI)
10
5.4
BFI Picture
BFI Frequency Picture
Optional BFI
Yes
No
Min Flicker For 60 fps
60 Hz
120 Hz
60Hz For 60 fps
Yes
No
120Hz For 120 fps
N/A
N/A
Min Flicker for 60 fps in Game Mode
60 Hz
120 Hz
Motion Interpolation
Motion Interpolation (30 fps) Picture
Motion Interpolation (30 fps)
Yes
No
Motion Interpolation (60 fps) Picture
Motion Interpolation (60 fps)
No
No
Stutter
7.2
7.2
Frame Hold Time @ 24 fps
29.3 ms
29.6 ms
Frame Hold Time @ 60 fps
4.3 ms
4.6 ms
24p Judder
10
5.6
Judder-Free 24p
Yes
Yes
Judder-Free 24p via 60p
Yes
No
Judder-Free 24p via 60i
Yes
No
Judder-Free 24p via Native Apps
Yes
No
Variable Refresh Rate
0.0
0.0
Native Refresh Rate
60 Hz
60 Hz
Variable Refresh Rate
No
No
HDMI Forum VRR
No
No
FreeSync
No
No
G-SYNC Compatible
No
No
4k VRR Maximum
N/A
N/A
4k VRR Minimum
No VRR support
No VRR support
1080p VRR Maximum
N/A
N/A
1080p VRR Minimum
No VRR support
No VRR support
1440p VRR Maximum
N/A
N/A
1440p VRR Minimum
N/A
No VRR support
VRR Supported Connectors
No VRR support
No VRR support
Inputs
Input Lag
8.3
9.5
1080p @ 60Hz
17.6 ms
12.9 ms
1080p @ 60Hz Outside Game Mode
152.4 ms
48.6 ms
1440p @ 60Hz
17.6 ms
12.8 ms
4k @ 60Hz
19.2 ms
13.0 ms
4k @ 60Hz + 10-Bit HDR
19.6 ms
12.9 ms
4k @ 60Hz @ 4:4:4
19.2 ms
13.0 ms
4k @ 60Hz Outside Game Mode
122.8 ms
29.7 ms
4k @ 60Hz With Interpolation
148.1 ms
N/A
8k @ 60Hz
N/A
N/A
1080p @ 120Hz
N/A
N/A
1440p @ 120Hz
N/A
N/A
4k @ 120Hz
N/A
N/A
1080p with Variable Refresh Rate
N/A
N/A
1440p with VRR
N/A
N/A
4k with VRR
N/A
N/A
8k with VRR
N/A
N/A
Auto Low Latency Mode (ALLM)
No
Yes
Supported Resolutions
8.3
8.3
Resolution
4k
4k
1080p @ 60Hz @ 4:4:4
Yes
Yes
1080p @ 120Hz
No
No
1440p @ 60Hz
Yes (forced resolution required)
Yes (native support)
1440p @ 120Hz
No
No
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
No
No
8k @ 30Hz or 24Hz
No
No
8k @ 60Hz
No
No
Advanced Console Compatibility
PS5 Screenshot
Xbox Series X Screenshot
Auto Low Latency Mode (ALLM)
No
Yes
PS5, 4k @ 120Hz + HDR
No
PS5, 4k @ 120Hz
No
PS5, 4k @ 60Hz + HDR
Yes
PS5, 1440p @ 120Hz
No
PS5, 1080p @ 120Hz
No
PS5, Variable Refresh Rate
No
Xbox Series X, 4k @ 120Hz + HDR
No
Xbox Series X, 4k @ 120Hz
No
Xbox Series X, 4k @ 60Hz + HDR
Yes
Xbox Series X, 1440p @ 120Hz
No
Xbox Series X, 1080p @ 120Hz
No
Xbox Series X, Variable Refresh Rate
No
Inputs Specifications
HDR10
Yes
Yes
HDR10+
No
No
Dolby Vision
Yes
No
HLG
No
No
3D
No
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3)
Yes (HDMI 1,2,3)
HDMI 2.1 Class Bandwidth
No
No
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3)
Yes (HDMI 1,2,3)
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
3
3
USB
1
1
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 3)
Yes (HDMI 3)
eARC support
No
No
Dolby Atmos via TrueHD via eARC
No
No
DTS:X via DTS-HD MA via eARC
No
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
Sound Quality
Frequency Response
5.4
6.2
Frequency Response
Low-Frequency Extension
142.54 Hz
134.54 Hz
Std. Dev. @ 70
6.43 dB
3.19 dB
Std. Dev. @ 80
6.24 dB
3.20 dB
Std. Dev. @ Max
5.37 dB
5.27 dB
Max
87.2 dB SPL
86.2 dB SPL
Dynamic Range Compression
2.63 dB
3.80 dB
Distortion
6.7
6.6
Total Harmonic Distortion
Weighted THD @ 80
0.072
0.215
Weighted THD @ Max
0.396
0.764
IMD @ 80
11.36%
3.73%
IMD @ Max
17.02%
14.73%
Smart Features
Interface
8.0
8.0
Smart TV Picture
Smart OS
Roku TV
Roku TV
Version
8.0
9.0
Ease of Use
Easy
Easy
Smoothness
Very Smooth
Very Smooth
Time Taken to Select YouTube
3 s
4 s
Time Taken to Change Backlight
4 s
4 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
7.0
6.0
Remote Picture
Size
Small
Small
Voice Control
Search, Some Other Features
No
CEC Menu Control
No
No
Other Smart Features
No
No
Remote App
Roku
Roku
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
57 W
42 W
Power Consumption (Max)
131 W
73 W
Firmware
8.0.2 • build 4140-30
9.0.0 build 4151-30
Check Price
43"
43"
43S425
Searching
Finding store49"
49"
49S425
Searching
Finding store50"
50"
50S425
Searching
Finding store55"
55R617
Searching
Finding store55"
55S425
Searching
Finding store65"
65R617
Searching
Finding store65"
65S425
Searching
Finding store75"
75R617
Searching
Finding store75"
75S425
Searching
Finding store
TCL 6 Series 2018
TCL 4 Series 2019
Comments
TCL 6 Series 2018 vs TCL 4 Series 2019: Main Discussion
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