Products
Roku Select Series
TCL S551G
Tested using Methodology v2.0.1
Updated Oct 29, 2025 09:51 PM
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Tested using Methodology v2.0.1
Updated Sep 24, 2025 08:56 PM
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Resolution4k
Native Refresh Rate
60Hz
TypeLED
Sub-Type
VA
Dolby Vision
No
Screen Finish
Glossy
Resolution4k
Native Refresh Rate
60Hz
TypeLED
Sub-Type
VA
Dolby Vision
Yes
Screen Finish
Glossy
Our Verdict
Roku Select Series
TCL S551G
The TCL S551G and the Roku Select Series are both budget TVs that perform similarly overall, though the TCL has a slight edge. Aside from using different smart interfaces, they have similar contrast ratios and peak brightness. That said, the TCL has a wider color gamut and slightly better picture processing. The TCL also supports Dolby Vision and has more gaming features, like VRR.
Variants
- 24R2A5R (24")
- 32R2A5R (32")
- 40R2A5R (40")
- 43R4A5R (43")
- 50R4A5R (50")
- 55R4A5R (55")
- 65R4A5R (65")
- 75R4A5R (75")
- 43S551G (43")
- 50S551G (50")
- 55S551G (55")
- 65S551G (65")
- 75S551G (75")
- 85S551G (85")
Check Price
24"
24R2A5R
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24"
32"
32R2A5R
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32"
40"
40R2A5R
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40"
43"
43R4A5R
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43"
43S551G
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50"
50R4A5R
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50"
50S551G
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55"
55R4A5R
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55"
55S551G
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65"
65R4A5R
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65"
65S551G
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75"
75R4A5R
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75"
75S551G
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85"
85"
85S551G
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Amazon.com
Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
5.4
5.9
Black Uniformity
6.8
9.9
SDR Brightness
6.5
5.8
Full Comparison
Brightness
HDR Brightness
4.6
4.5
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
244 cd/m²
304 cd/m²
Yellow Skyscraper (~700 cd/m²)
268 cd/m²
217 cd/m²
Landscape Pool (~300 cd/m²)
144 cd/m²
159 cd/m²
Peak 2% Window
375 cd/m²
355 cd/m²
Peak 10% Window
374 cd/m²
355 cd/m²
Peak 25% Window
374 cd/m²
355 cd/m²
Peak 50% Window
373 cd/m²
355 cd/m²
Peak 100% Window
373 cd/m²
355 cd/m²
Sustained 2% Window
374 cd/m²
355 cd/m²
Sustained 10% Window
373 cd/m²
355 cd/m²
Sustained 25% Window
373 cd/m²
355 cd/m²
Sustained 50% Window
372 cd/m²
355 cd/m²
Sustained 100% Window
372 cd/m²
355 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.000
HDR Brightness In Game Mode
4.5
4.5
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
247 cd/m²
306 cd/m²
Yellow Skyscraper (~700 cd/m²)
267 cd/m²
217 cd/m²
Landscape Pool (~300 cd/m²)
140 cd/m²
161 cd/m²
Peak 2% Window
370 cd/m²
355 cd/m²
Peak 10% Window
370 cd/m²
356 cd/m²
Peak 25% Window
370 cd/m²
356 cd/m²
Peak 50% Window
371 cd/m²
356 cd/m²
Peak 100% Window
371 cd/m²
355 cd/m²
Sustained 2% Window
369 cd/m²
355 cd/m²
Sustained 10% Window
369 cd/m²
356 cd/m²
Sustained 25% Window
370 cd/m²
356 cd/m²
Sustained 50% Window
370 cd/m²
355 cd/m²
Sustained 100% Window
370 cd/m²
355 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.000
SDR Brightness
6.5
5.8
Real Scene Peak Brightness
408 cd/m²
310 cd/m²
Peak 2% Window
386 cd/m²
358 cd/m²
Peak 10% Window
381 cd/m²
353 cd/m²
Peak 25% Window
378 cd/m²
350 cd/m²
Peak 50% Window
376 cd/m²
347 cd/m²
Peak 100% Window
374 cd/m²
346 cd/m²
Sustained 2% Window
383 cd/m²
356 cd/m²
Sustained 10% Window
379 cd/m²
352 cd/m²
Sustained 25% Window
376 cd/m²
348 cd/m²
Sustained 50% Window
374 cd/m²
347 cd/m²
Sustained 100% Window
373 cd/m²
345 cd/m²
Automatic Brightness Limiting (ABL)
0.002
0.002
Black Level
Contrast
4.4
4.7
Contrast Picture
Contrast
4,561 : 1
5,083 : 1
Native Contrast
4,561 : 1
5,083 : 1
Lighting Zone Precision
0.0
0.0
Lighting Zone Precision Picture
Lighting Zone Transitions
10
10
Preferred LD Video, Moving Object
Local Dimming
No
No
Backlight
Direct
Direct
Dimming Zone Count Of The Tested TV
N/A
N/A
Contrast And Dark Details In Game Mode
4.5
5.0
Lighting Zone Precision Photo In Game Mode
Preferred LD Video, Moving Object In Game Mode
Game Transitions With VRR And Preferred LD
Black Uniformity
6.8
9.9
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
N/A
N/A
Native Black Uniformity Picture
Native Std. Dev.
0.864%
0.284%
Color
SDR Color Volume
5.4
6.7
DCI-P3 Gamut Rings
CIELAB DCI-P3 Coverage
69.90%
83.72%
BT.2020 Gamut Rings
CIELAB BT.2020 Coverage
46.98%
56.80%
HDR Color Volume
5.5
6.3
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
49.7%
57.8%
2020 Color Volume ITP Picture
10,000 cd/m² BT.2020 Coverage ITP
21.3%
26.2%
White Luminance
370 cd/m²
355 cd/m²
Red Luminance
79 cd/m²
75 cd/m²
Green Luminance
268 cd/m²
253 cd/m²
Blue Luminance
23 cd/m²
26 cd/m²
Cyan Luminance
291 cd/m²
279 cd/m²
Magenta Luminance
101 cd/m²
101 cd/m²
Yellow Luminance
345 cd/m²
327 cd/m²
SDR Pre-Calibration Color Accuracy
8.8
6.1
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE 2000
1.23
5.82
Color dE 2000
1.11
2.79
Gamma
2.20
2.15
Color Temperature
6,738 K
6,199 K
Picture Mode
Movie
Movie
Color Temp Setting
Warm
Warm -5
Gamma Setting
2.2
2.2
SDR Post-Calibration Color Accuracy
9.7
9.5
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE 2000
0.20
0.15
Color dE 2000
0.69
1.35
Gamma
2.20
2.20
Color Temperature
6,503 K
6,509 K
White Balance Calibration
11 point
20 point
Color Calibration
Yes
Yes
HDR Pre-Calibration Color Accuracy
6.6
7.1
HDR Pre White Balance Picture
HDR Pre Color Picture
White Balance dE ITP
10.13
9.70
Color dE ITP
13.5
8.9
Color Temperature
7,177 K
7,046 K
Picture Mode
Dark HDR
Movie
HDR Post-Calibration Color Accuracy
7.2
9.1
HDR Post White Balance Picture
HDR Post Color Picture
White Balance dE ITP
5.58
5.70
Color dE ITP
7.90
5.30
Color Temperature
7,587 K
6,540 K
Processing
PQ EOTF Tracking
7.1
7.5
PQ EOTF Graph
600 Nit Tracking Delta
0.0079
0.0067
1000 Nit Tracking Delta
0.0080
0.0067
4000 Nit Tracking Delta
0.0077
0.0067
Low-Quality Content Smoothing
4.7
6.0
Low-Quality Content Smoothing Picture
Smoothing
3.0
5.5
Detail Preservation
8.5
7.0
Upscaling: Sharpness Processing
5.0
5.5
Sharpness Picture - 480p
HDR Native Gradient
7.8
6.8
HDR Gradient Picture
100% Black To 50% Gray
6.0
6.0
50% Gray To 100% White
8.0
8.0
100% Black To 50% Red
8.0
6.0
50% Red To 100% Red
10
8.0
100% Black To 50% Green
6.0
4.0
50% Green To 100% Green
8.0
8.0
100% Black To 50% Blue
8.0
6.0
50% Blue To 100% Blue
8.0
8.0
Game Mode Responsiveness
Input Lag
7.2
8.2
1080p @ 60Hz
11.9 ms
10.5 ms
1080p @ 60Hz Outside Game Mode
151.8 ms
161.7 ms
1080p @ 120Hz
N/A
6.6 ms
1080p @ Max Refresh Rate
11.9 ms
6.6 ms
4k @ 60Hz
13.1 ms
10.5 ms
4k @ 60Hz @ 4:4:4
13.1 ms
10.5 ms
4k @ 60Hz Outside Game Mode
151.8 ms
160.9 ms
4k @ 60Hz With Interpolation
N/A
160.8 ms
4k @ 120Hz
N/A
N/A
4k @ Max Refresh Rate
13.1 ms
10.5 ms
8k @ 60Hz
N/A
N/A
Supported Resolutions
6.3
7.2
Resolution
4k
4k
480p @ 59.94Hz (Widescreen)
Yes
Yes
720p @ 59.94Hz
Yes
Yes
1080p @ 60Hz @ 4:4:4
Yes
Yes
1080p @ 120Hz
No
Yes
1080p Maximum Refresh Rate
60 Hz
120 Hz
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
No
No
4k @ 120Hz @ 4:4:4
No
No
4k Maximum Refresh Rate
60 Hz
60 Hz
8k @ 30Hz Or 24Hz
No
No
8k @ 60Hz
No
No
Variable Refresh Rate
0.0
6.4
Native Refresh Rate
60Hz
60Hz
Variable Refresh Rate
No
Yes
HDMI Forum VRR
No
Yes
FreeSync
No
Yes
G-SYNC Compatible
No
Yes
4k VRR Maximum
N/A
60 Hz
4k VRR Minimum
No VRR support
48 Hz
1080p VRR Maximum
N/A
120 Hz
1080p VRR Minimum
No VRR support
< 20 Hz
VRR + Local Dimming
No VRR Support
No Local Dimming
CAD In Game Mode @ Max Refresh Rate
6.0
6.2
Pursuit Photo Max Refresh
CAD Heatmap Max Refresh
Transition At Max Refresh
0 to 31
0 to 31
Avg. CAD
283
282
Best 10% CAD
124
82
Worst 10% CAD
468
490
CAD In Game Mode @ 120Hz
0.0
0.0
Pursuit Photo 120Hz
CAD Heatmap 120Hz
Transition At 120Hz
Avg. CAD
N/A
N/A
Best 10% CAD
N/A
N/A
Worst 10% CAD
N/A
N/A
CAD In Game Mode @ 60Hz
6.0
6.2
Pursuit Photo 60Hz
CAD Heatmap 60Hz
Transition 60Hz
0 to 31
0 to 31
Avg. CAD
283
282
Best 10% CAD
124
82
Worst 10% CAD
468
490
PS5 Compatibility
PS5 Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
No
No
1440p @ 120Hz
No
Yes
1080p @ 120Hz
No
Yes
HDR
Yes
Yes
VRR
No
Yes
Xbox Series X|S Compatibility
Xbox Series X Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
No
No
1440p @ 120Hz
No
Yes
1080p @ 120Hz
No
Yes
HDR
Yes
Yes
VRR
No
Yes
Motion Handling
Stutter
7.3
7.3
Frame Hold Time @ 24 fps
31.2 ms
31.3 ms
Frame Hold Time @ 60 fps
6.2 ms
6.3 ms
24p Judder
5.0
10
Judder-Free 24p
Yes
Yes
Judder-Free 24p via 60p
No
Yes
Judder-Free 24p via 60i
No
Yes
Judder-Free 24p via Native Apps
No
Yes
Response Time
7.1
7.1
Pursuit Photo 60Hz
Response Time Heatmap 60Hz
Transition At 60Hz
0 to 31
0 to 31
First Response Time
10.5 ms
10.4 ms
Total Response Time
11.4 ms
11.9 ms
Worst 10% Response Time
21.6 ms
21.2 ms
Flicker
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
120 Hz
150 Hz
Black Frame Insertion (BFI)
BFI Picture
BFI Frequency Picture
Optional BFI
No
No
Min Flicker For 60 fps
120 Hz
150 Hz
60Hz For 60 fps
No
No
120Hz For 120 fps
No
No
Min Flicker For 60 fps In Game Mode
120 Hz
150 Hz
Motion Interpolation
Motion Interpolation (30 fps) Picture
Motion Interpolation (30 fps)
No
Yes
Motion Interpolation (60 fps) Picture
Motion Interpolation (60 fps)
No
No
Reflections
Direct Reflections
5.6
6.3
Ring Light Picture
Direct Reflections Graph
Peak Direct Reflection Intensity
62.0%
46.9%
Screen Finish
Glossy
Glossy
Ambient Black Level Raise
9.0
9.1
Black Level Raise Picture
Bright Room Black Level Raise Graph
Black Luminance @ 0 lx
0.10 cd/m²
0.06 cd/m²
Black Luminance @ 1000 lx
0.44 cd/m²
0.38 cd/m²
Total Reflected Light
6.5
6.2
Bright Room Off Picture
Ring Picture Total Reflection
Total Reflected Light Intensity
26,691% ⋅ pixel
24,823% ⋅ pixel
Diffraction Artifacts
No
Yes
Ambient Color Saturation
5.9
6.6
Bright Room Color Volume Graph
Low-Luminance Colors @ 1000 lx
51.61%
56.56%
Mid-Luminance Colors @ 1000 lx
47.88%
57.25%
High-Luminance Colors @ 1000 lx
39.55%
46.24%
Panel
Viewing Angle
6.7
6.6
Viewing Angle Video
Chroma Graph
Color Washout
28°
33°
Hue Graph
Color Shift
22°
54°
Lightness Graph
Brightness Loss
41°
39°
Black Level Raise
70°
18°
Gamma Shift
14°
16°
Gray Uniformity
5.6
6.0
50% Uniformity Picture
50% Std. Dev.
4.792%
4.153%
50% DSE
0.204%
0.221%
5% Uniformity Picture
5% Std. Dev.
1.141%
0.732%
5% DSE
0.104%
0.079%
Panel Technology
Spectral Power Distribution
Pixels Picture
Type
LED
LED
Sub-Type
VA
VA
Subpixel Layout
BGR
BGR
Inputs
Input Specifications
Side Inputs Picture
Rear Inputs Picture
HDMI
4 (4x HDMI 2.0)
3 (3x HDMI 2.0)
HDMI 2.1 Rated Speed
No HDMI 2.1
No HDMI 2.1
ATSC Tuner
1.0
1.0
USB Ports
1
1
USB 3.0
No
No
Audio Out 3.5mm
1
1
Wi-Fi
Yes (2.4 GHz, 5 GHz)
Yes (2.4 GHz, 5 GHz)
Ethernet Speed
100 Mbps
100 Mbps
Composite In
1
1 (Adapter Required, Not Incl.)
Digital Optical Audio Out
1
1
Audio Passthrough
ARC/eARC Port
eARC
eARC
eARC: Dolby Atmos Over Dolby Digital Plus
Yes
Yes
eARC: Dolby Digital Plus 7.1
Yes
Yes
eARC: LPCM 7.1 Over Dolby MAT
Yes
Yes
eARC: Dolby TrueHD 7.1
Yes
Yes
eARC: DTS:X Over DTS-HD MA
No
Yes
eARC: DTS-HD Master Audio 7.1
No
Yes
eARC: LPCM Channels (Bitstream)
7.1
7.1
ARC: Dolby Digital 5.1
Yes
Yes
ARC: DTS 5.1
Yes
Yes
Optical: Dolby Digital 5.1
No
Yes
Optical: DTS 5.1
No
Yes
HDR Format Support
HDR10
Yes
Yes
HDR10+
Yes
Yes
Dolby Vision
No
Yes
HLG
Yes
Yes
Design
Style
Design Picture
Curved
No
No
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 400x300
VESA 400x400
Borders
Borders Picture
Borders
0.40" (1.0 cm)
0.33" (0.9 cm)
Thickness
Thickness Picture
Max Thickness
3.36" (8.5 cm)
2.60" (6.6 cm)
Build Quality
6.5
7.0
Build quality picture
Smart Features
Interface
Smart TV Picture
Smart OS
Roku TV
Google TV
Version
12.5.0
12
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
Remote
Remote Picture
Voice Control
Yes
Yes
TV Controls
Controls Picture
Mute Switch
No
No
In The Box
In The Box Picture
Misc
Power Consumption
63 W
54 W
Power Consumption (Max)
237 W
188 W
Firmware
12.5.0 build 4177-ET
V8-R75PT01-LF1V174
Sound Quality
Frequency Response
5.5
6.3
Frequency Response
Low-Frequency Extension
142.54 Hz
134.54 Hz
Std. Dev. @ 70
2.94 dB
3.96 dB
Std. Dev. @ 80
4.82 dB
4.01 dB
Std. Dev. @ Max
5.84 dB
4.52 dB
Max
85.0 dB SPL
87.2 dB SPL
Dynamic Range Compression
4.10 dB
2.53 dB
Digital Room Correction
No
No
Check Price
24"
24R2A5R
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24"
32"
32R2A5R
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32"
40"
40R2A5R
SEE PRICE
Amazon.com
40"
43"
43R4A5R
SEE PRICE
Amazon.com
43"
43S551G
SEE PRICE
BestBuy.com
50"
50R4A5R
SEARCH
Amazon.com
50"
50S551G
SEE PRICE
BestBuy.com
55"
55R4A5R
SEARCH
Amazon.com
55"
55S551G
SEE PRICE
BestBuy.com
65"
65R4A5R
SEARCH
Amazon.com
65"
65S551G
SEE PRICE
BestBuy.com
75"
75R4A5R
SEARCH
Amazon.com
75"
75S551G
SEE PRICE
BestBuy.com
85"
85"
85S551G
SEE PRICE
Amazon.com
Roku Select Series
TCL S551G
Comments
Roku Select Series vs TCL S551G: Main Discussion
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