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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
Hisense U6/U6N vs TCL S5/S551G
Side-by-Side Comparison
Products
Hisense U6/U6N
TCL S5/S551G
Tested using Methodology v1.11
Updated May 30, 2025 03:26 PM
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BestBuy.comTested using Methodology v1.11
Updated Apr 04, 2025 08:59 PM
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Resolution4k
TypeLED
Sub-TypeVA
Resolution4k
TypeLED
Sub-TypeVA
Variants
- 55U6N (55")
- 65U6N (65")
- 75U6N (75")
- 85U6N (85")
- 43S551G (43")
- 50S551G (50")
- 55S551G (55")
- 65S551G (65")
- 75S551G (75")
- 85S551G (85")
Our Verdict
Hisense U6/U6N
TCL S5/S551G
The Hisense U6/U6N and the TCL S5/S551G are both entry-level TVs, but the Hisense is better overall thanks to its local dimming feature and significantly better contrast. That, combined with its higher peak brightness, provides much better picture quality and a more impactful HDR experience. That said, it has a worse viewing angle, so it's even less suitable for wide seating arrangements.
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43"
43"
43S551G
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50"
50S551G
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55U6N
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55S551G
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65U6N
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65S551G
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75U6N
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75S551G
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85U6N
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85S551G
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Finding storeMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
7.6
7.2
Contrast
9.3
6.7
Upscaling: Sharpness Processing
7.5
5.5
Full Comparison
Design
Style
Design Picture
Curved
No
No
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 400x300
VESA 400x400
Borders
Borders Picture
Borders
0.39" (1.0 cm)
0.33" (0.9 cm)
Thickness
Thickness Picture
Max Thickness
2.99" (7.6 cm)
2.60" (6.6 cm)
Build Quality
6.5
7.0
Build quality picture
Picture Quality
Contrast
9.3
6.7
Contrast Picture
Contrast
80,360 : 1
6,766 : 1
Native Contrast
9,785 : 1
6,766 : 1
Blooming
7.0
10
Blooming Photo
Lighting Zone Transitions
7.0
10
Preferred LD Video, Moving Object
Local Dimming
Yes
No
Backlight
Full-Array
Direct
Dimming Zones Count Of Tested TV
240
N/A
Contrast And Dark Details In Game Mode
8.5
7.0
Blooming Photo In Game Mode
Preferred LD Video, Moving Object In Game Mode
Game Transitions With VRR And Preferred LD
HDR Brightness
6.9
5.9
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
319 cd/m²
304 cd/m²
Yellow Skyscraper (~700 cd/m²)
290 cd/m²
217 cd/m²
Landscape Pool (~300 cd/m²)
253 cd/m²
159 cd/m²
Peak 2% Window
340 cd/m²
355 cd/m²
Peak 10% Window
534 cd/m²
355 cd/m²
Peak 25% Window
629 cd/m²
355 cd/m²
Peak 50% Window
565 cd/m²
355 cd/m²
Peak 100% Window
442 cd/m²
355 cd/m²
Sustained 2% Window
338 cd/m²
355 cd/m²
Sustained 10% Window
527 cd/m²
355 cd/m²
Sustained 25% Window
621 cd/m²
355 cd/m²
Sustained 50% Window
563 cd/m²
355 cd/m²
Sustained 100% Window
441 cd/m²
355 cd/m²
Automatic Brightness Limiting (ABL)
0.034
0.000
HDR Brightness In Game Mode
6.9
5.9
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
315 cd/m²
306 cd/m²
Yellow Skyscraper (~700 cd/m²)
290 cd/m²
217 cd/m²
Landscape Pool (~300 cd/m²)
260 cd/m²
161 cd/m²
Peak 2% Window
337 cd/m²
355 cd/m²
Peak 10% Window
541 cd/m²
356 cd/m²
Peak 25% Window
641 cd/m²
356 cd/m²
Peak 50% Window
572 cd/m²
356 cd/m²
Peak 100% Window
450 cd/m²
355 cd/m²
Sustained 2% Window
335 cd/m²
355 cd/m²
Sustained 10% Window
534 cd/m²
356 cd/m²
Sustained 25% Window
633 cd/m²
356 cd/m²
Sustained 50% Window
570 cd/m²
355 cd/m²
Sustained 100% Window
450 cd/m²
355 cd/m²
Automatic Brightness Limiting (ABL)
0.035
0.000
PQ EOTF Tracking
7.4
9.0
PQ EOTF Graph
600 Nit Tracking Delta
0.0189
0.0067
1000 Nit Tracking Delta
0.0188
0.0067
4000 Nit Tracking Delta
0.0281
0.0067
SDR Brightness
8.1
7.0
Real Scene Peak Brightness
422 cd/m²
310 cd/m²
Peak 2% Window
328 cd/m²
358 cd/m²
Peak 10% Window
519 cd/m²
353 cd/m²
Peak 25% Window
612 cd/m²
350 cd/m²
Peak 50% Window
551 cd/m²
347 cd/m²
Peak 100% Window
430 cd/m²
346 cd/m²
Sustained 2% Window
325 cd/m²
356 cd/m²
Sustained 10% Window
511 cd/m²
352 cd/m²
Sustained 25% Window
604 cd/m²
348 cd/m²
Sustained 50% Window
548 cd/m²
347 cd/m²
Sustained 100% Window
429 cd/m²
345 cd/m²
Automatic Brightness Limiting (ABL)
0.035
0.002
Color Gamut
8.1
8.0
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
90.00%
88.94%
DCI P3 uv
93.25%
94.52%
Color Gamut Rec.2020 Picture
Rec 2020 xy
67.17%
64.85%
Rec 2020 uv
74.84%
71.16%
Color Volume
7.3
7.1
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
60.4%
57.8%
2020 Color Volume ITP Picture
10,000 cd/m² Rec 2020 Coverage ITP
27.9%
26.2%
White Luminance
340 cd/m²
355 cd/m²
Red Luminance
69 cd/m²
75 cd/m²
Green Luminance
250 cd/m²
253 cd/m²
Blue Luminance
27 cd/m²
26 cd/m²
Cyan Luminance
272 cd/m²
279 cd/m²
Magenta Luminance
90 cd/m²
101 cd/m²
Yellow Luminance
317 cd/m²
327 cd/m²
Pre Calibration
5.5
6.1
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
6.44
5.82
Color dE
3.56
2.79
Gamma
2.23
2.15
Color Temperature
6,493 K
6,199 K
Picture Mode
Theater
Movie
Color Temp Setting
Warm 1
Warm -5
Gamma Setting
2.2
2.2
Post Calibration
9.6
9.5
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.20
0.15
Color dE
0.73
1.35
Gamma
2.21
2.20
Color Temperature
6,531 K
6,509 K
White Balance Calibration
20 point
20 point
Color Calibration
Yes
Yes
Gray Uniformity
7.3
7.0
50% Uniformity Picture
50% Std. Dev.
4.126%
4.153%
50% DSE
0.180%
0.221%
5% Uniformity Picture
5% Std. Dev.
0.830%
0.732%
5% DSE
0.105%
0.079%
Black Uniformity
10
10
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
0.406%
N/A
Native Black Uniformity Picture
Native Std. Dev.
0.311%
0.284%
Viewing Angle
5.2
6.1
Viewing Angle Video
Chroma Graph
Color Washout
22°
33°
Hue Graph
Color Shift
21°
54°
Lightness Graph
Brightness Loss
30°
39°
Black Level Raise
19°
18°
Gamma Shift
16°
16°
Reflections
7.4
7.6
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Semi-gloss
Semi-gloss
Total Reflections
5.1%
4.8%
Indirect Reflections
0.4%
0.6%
Calculated Direct Reflections
4.8%
4.2%
HDR Native Gradient
7.3
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
8.0
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
6.0
6.0
50% Blue to 100% Blue
8.0
8.0
Low-Quality Content Smoothing
4.8
6.0
Low-Quality Content Smoothing Picture
Smoothing
3.0
5.5
Detail Preservation
9.0
7.0
Upscaling: Sharpness Processing
7.5
5.5
Sharpness Picture - 480p
Pixels
Pixels Picture
Subpixel Layout
BGR
BGR
Type
LED
LED
Sub-Type
VA
VA
Motion
Response Time
8.1
7.9
Motion Blur Picture
Response Time Chart
80% Response Time
4.7 ms
4.8 ms
100% Response Time
12.1 ms
13.1 ms
Flicker-Free
9.0
2.1
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
7,800 Hz
150 Hz
Black Frame Insertion (BFI)
BFI Picture
BFI Frequency Picture
Optional BFI
No
No
Min Flicker For 60 fps
N/A
150 Hz
60Hz For 60 fps
No
No
120Hz For 120 fps
No
No
Min Flicker for 60 fps in Game Mode
N/A
150 Hz
Motion Interpolation
Motion Interpolation (30 fps) Picture
Motion Interpolation (30 fps)
Yes
Yes
Motion Interpolation (60 fps) Picture
Motion Interpolation (60 fps)
No
No
Stutter
7.2
7.4
Frame Hold Time @ 24 fps
29.6 ms
28.6 ms
Frame Hold Time @ 60 fps
4.6 ms
3.6 ms
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
Variable Refresh Rate
7.1
8.2
Native Refresh Rate
60 Hz
60 Hz
Variable Refresh Rate
Yes
Yes
HDMI Forum VRR
Yes
Yes
FreeSync
Yes
Yes
G-SYNC Compatible
Yes
Yes
4k VRR Maximum
60 Hz
60 Hz
4k VRR Minimum
48 Hz
48 Hz
1080p VRR Maximum
60 Hz
120 Hz
1080p VRR Minimum
48 Hz
< 20 Hz
1440p VRR Maximum
60 Hz
120 Hz
1440p VRR Minimum
48 Hz
< 20 Hz
VRR + Local Dimming
Yes
No Local Dimming
Inputs
Input Lag
9.7
9.7
1080p @ 60Hz
10.8 ms
10.5 ms
1080p @ 60Hz Outside Game Mode
115.1 ms
161.7 ms
1080p @ 120Hz
6.5 ms
6.6 ms
1080p @ 144Hz
N/A
N/A
1440p @ 60Hz
10.8 ms
10.7 ms
1440p @ 120Hz
6.4 ms
6.4 ms
1440p @ 144Hz
N/A
N/A
4k @ 60Hz
10.8 ms
10.5 ms
4k @ 60Hz + 10-Bit HDR
10.9 ms
10.4 ms
4k @ 60Hz @ 4:4:4
10.8 ms
10.5 ms
4k @ 60Hz Outside Game Mode
90.7 ms
160.9 ms
4k @ 60Hz With Interpolation
114.6 ms
160.8 ms
4k @ 120Hz
N/A
N/A
4k @ 144Hz
N/A
N/A
8k @ 60Hz
N/A
N/A
Supported Resolutions
8.2
8.2
Resolution
4k
4k
480p @ 59.94Hz (Widescreen)
Yes
Yes
720p @ 59.94Hz
Yes
Yes
1080p @ 60Hz @ 4:4:4
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 144Hz
No
No
1440p @ 60Hz
Yes
Yes (forced resolution required)
1440p @ 120Hz
Yes (forced resolution required)
Yes
1440p @ 144Hz
No
No
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
No
No
4k @ 120Hz @ 4:4:4
No
No
4k @ 144Hz
No
No
8k @ 30Hz or 24Hz
No
No
8k @ 60Hz
No
No
PS5 Compatibility
PS5 Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
No
No
1440p @ 120Hz
No
Yes
1080p @ 120Hz
Yes
Yes
HDR
Yes
Yes
VRR
Yes
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
Yes
Yes
HDR
Yes
Yes
VRR
Yes
Yes
Inputs Specifications
HDR10
Yes
Yes
HDR10+
Yes
Yes
Dolby Vision
Yes
Yes
HLG
Yes
Yes
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3)
HDMI 2.1 Class Bandwidth
No
No
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3)
ATSC Tuner
1.0
1.0
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
4
3
USB
2
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 (adapter required, not incl.)
1 (adapter required, not incl.)
Tuner (Cable/Ant)
1
1
Ethernet
1
1
DisplayPort
0
0
IR In
0
0
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
Yes
Yes
eARC: DTS-HD Master Audio 7.1
Yes
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
Yes
Yes
Optical: DTS 5.1
Yes
Yes
Sound Quality
Frequency Response
5.7
6.3
Frequency Response
Low-Frequency Extension
126.99 Hz
134.54 Hz
Std. Dev. @ 70
4.38 dB
3.96 dB
Std. Dev. @ 80
4.57 dB
4.01 dB
Std. Dev. @ Max
6.69 dB
4.52 dB
Max
85.7 dB SPL
87.2 dB SPL
Dynamic Range Compression
3.66 dB
2.53 dB
Distortion
8.3
7.3
Total Harmonic Distortion
Weighted THD @ 80
0.024
0.045
Weighted THD @ Max
0.114
0.222
IMD @ 80
1.38%
2.10%
IMD @ Max
2.47%
10.47%
Smart Features
Interface
8.0
8.0
Smart TV Picture
Smart OS
Google TV
Google TV
Version
12
12
Ease of Use
Average
Average
Smoothness
Very Smooth
Very Smooth
Time Taken to Select YouTube
1 s
1 s
Time Taken to Change Backlight
2 s
2 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
9.0
9.0
Apps Picture
App Selection
Great
Great
App Smoothness
Average
Very Smooth
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
8.5
8.5
Remote Picture
Size
Large
Medium
Voice Control
Many Features
Many Features
CEC Menu Control
Yes
Yes
Other Smart Features
No
No
Remote App
Hisense RemoteNOW
Android TV
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
58 W
54 W
Power Consumption (Max)
184 W
188 W
Firmware
V0000.01.00A.O0403
V8-R75PT01-LF1V174
Check Price
43"
43"
43S551G
Searching
Finding store50"
50"
50S551G
Searching
Finding store55"
55U6N
Searching
Finding store55"
55S551G
Searching
Finding store65"
65U6N
Searching
Finding store65"
65S551G
Searching
Finding store75"
75U6N
Searching
Finding store75"
75S551G
Searching
Finding store85"
85U6N
Searching
Finding store85"
85S551G
Searching
Finding store
Hisense U6/U6N
TCL S5/S551G
Comments
Hisense U6/U6N vs TCL S5/S551G: Main Discussion
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