TCL S551G vs Hisense QD7N Side-by-Side TV Comparison

The Hisense QD7N is better overall than the TCL S551G. While it's a bit pricier and has a worse contrast ratio, it gets noticeably brighter and offers more advanced gaming features, including HDMI 2.1 bandwidth for gaming up to 4k @ 144Hz.

Variants

43S551G (43")
50S551G (50")
55S551G (55")
65S551G (65")
75S551G (75")
85S551G (85")

65QD7N (65")
75QD7N (75")
85QD7N (85")
100QD7N (100")

Review

See TCL S551G Review

See Hisense QD7N [QD7, QD75N] QLED Review

Check Price

100"

100QD7N

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43"

43S551G

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43"

50"

50S551G

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50"

55"

55S551G

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55"

65"

65S551G

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65"

65QD7N

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75"

75S551G

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75"

75QD7N

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85"

85S551G

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85"

85QD7N

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Main Differences for
Mixed Usage

Threshold

0.10

Mixed Usage

7.2

Contrast

6.7

2.2

Pre Calibration

6.1

8.8

Low-Quality Content Smoothing

6.0

7.9

Black Uniformity

6.6

Upscaling: Sharpness Processing

5.5

7.5

Full Comparison

Mixed Usage

7.2

TV Shows

6.9

7.6

Sports

6.9

7.5

Video Games

7.7

7.2

HDR Movies

7.2

6.6

HDR Gaming

7.7

7.3

PC Monitor

7.7

8.2

Design

Style

Design Picture

Curved

Show Text

Accelerated Longevity Test

Uniformity Pictures

Longevity Graph

Stand

Stand Picture

Show Text

Back

Back Picture

Wall Mount

VESA 400x400

VESA 300x400

Show Text

Borders

Borders Picture

Borders

0.33" (0.9 cm)

0.39" (1.0 cm)

Thickness

Thickness Picture

Max Thickness

2.60" (6.6 cm)

2.99" (7.6 cm)

Build Quality

7.0

6.5

Build quality picture

Show Text

Picture Quality

Contrast

6.7

2.2

Contrast Picture

Contrast

6,766 : 1

1,402 : 1

Native Contrast

6,766 : 1

1,402 : 1

Show Text

Blooming

Blooming Photo

Show Text

Lighting Zone Transitions

Preferred LD Video, Moving Object

Local Dimming

Backlight

Direct

Dimming Zones Count Of Tested TV

N/A

Show Text

Contrast And Dark Details In Game Mode

7.0

4.0

Blooming Photo In Game Mode

Preferred LD Video, Moving Object In Game Mode

Game Transitions With VRR And Preferred LD

Show Text

HDR Brightness

5.9

6.7

HDR Hallway Photo

HDR Cityscape Photo

HDR Landscape Photo

Hallway Lights (~1950 cd/m²)

304 cd/m²

303 cd/m²

Yellow Skyscraper (~700 cd/m²)

217 cd/m²

309 cd/m²

Landscape Pool (~300 cd/m²)

159 cd/m²

215 cd/m²

Peak 2% Window

355 cd/m²

438 cd/m²

Peak 10% Window

355 cd/m²

440 cd/m²

Peak 25% Window

355 cd/m²

439 cd/m²

Peak 50% Window

355 cd/m²

439 cd/m²

Peak 100% Window

355 cd/m²

440 cd/m²

Sustained 2% Window

355 cd/m²

438 cd/m²

Sustained 10% Window

355 cd/m²

438 cd/m²

Sustained 25% Window

355 cd/m²

438 cd/m²

Sustained 50% Window

355 cd/m²

438 cd/m²

Sustained 100% Window

355 cd/m²

439 cd/m²

Automatic Brightness Limiting (ABL)

0.000

Show Text

HDR Brightness In Game Mode

5.9

6.7

HDR Hallway Photo

HDR Cityscape Photo

HDR Landscape Photo

Hallway Lights (~1950 cd/m²)

306 cd/m²

Yellow Skyscraper (~700 cd/m²)

217 cd/m²

309 cd/m²

Landscape Pool (~300 cd/m²)

161 cd/m²

216 cd/m²

Peak 2% Window

355 cd/m²

441 cd/m²

Peak 10% Window

356 cd/m²

441 cd/m²

Peak 25% Window

356 cd/m²

440 cd/m²

Peak 50% Window

356 cd/m²

440 cd/m²

Peak 100% Window

355 cd/m²

439 cd/m²

Sustained 2% Window

355 cd/m²

440 cd/m²

Sustained 10% Window

356 cd/m²

439 cd/m²

Sustained 25% Window

356 cd/m²

439 cd/m²

Sustained 50% Window

355 cd/m²

439 cd/m²

Sustained 100% Window

355 cd/m²

439 cd/m²

Automatic Brightness Limiting (ABL)

0.000

Show Text

PQ EOTF Tracking

9.0

7.7

PQ EOTF Graph

See details

600 Nit Tracking Delta

0.0067

0.0154

1000 Nit Tracking Delta

0.0067

0.0154

4000 Nit Tracking Delta

0.0067

0.0154

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SDR Brightness

7.0

7.9

Real Scene Peak Brightness

310 cd/m²

386 cd/m²

Peak 2% Window

358 cd/m²

439 cd/m²

Peak 10% Window

353 cd/m²

439 cd/m²

Peak 25% Window

350 cd/m²

439 cd/m²

Peak 50% Window

347 cd/m²

439 cd/m²

Peak 100% Window

346 cd/m²

439 cd/m²

Sustained 2% Window

356 cd/m²

439 cd/m²

Sustained 10% Window

352 cd/m²

439 cd/m²

Sustained 25% Window

348 cd/m²

439 cd/m²

Sustained 50% Window

347 cd/m²

438 cd/m²

Sustained 100% Window

345 cd/m²

438 cd/m²

Automatic Brightness Limiting (ABL)

0.002

0.000

Show Text

Color Gamut

8.0

8.2

Wide Color Gamut

Yes

Color Gamut DCI-P3 Picture

DCI P3 xy

88.94%

93.41%

DCI P3 uv

94.52%

96.19%

Color Gamut Rec.2020 Picture

Rec 2020 xy

64.85%

67.68%

Rec 2020 uv

71.16%

71.20%

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Color Volume

7.1

7.2

P3 Color Volume ITP Picture

1,000 cd/m² DCI P3 Coverage ITP

57.8%

61.3%

2020 Color Volume ITP Picture

10,000 cd/m² Rec 2020 Coverage ITP

26.2%

27.6%

White Luminance

355 cd/m²

451 cd/m²

Red Luminance

75 cd/m²

94 cd/m²

Green Luminance

253 cd/m²

317 cd/m²

Blue Luminance

26 cd/m²

39 cd/m²

Cyan Luminance

279 cd/m²

351 cd/m²

Magenta Luminance

101 cd/m²

133 cd/m²

Yellow Luminance

327 cd/m²

412 cd/m²

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Pre Calibration

6.1

8.8

Pre White Balance Picture

Pre Gamma Curve Picture

Pre Color Picture

White Balance dE

5.82

1.87

Color dE

2.79

1.19

Gamma

2.15

2.17

Color Temperature

6,199 K

6,780 K

Picture Mode

Movie

Theater Night

Color Temp Setting

Warm -5

Warm 1

Gamma Setting

2.2

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Post Calibration

9.5

9.6

Post White Balance Picture

Post Gamma Curve Picture

Post Color Picture

White Balance dE

0.15

0.37

Color dE

1.35

0.62

Gamma

2.20

2.18

Color Temperature

6,509 K

6,515 K

White Balance Calibration

20 point

Color Calibration

Yes

Show Text

Gray Uniformity

7.0

7.1

50% Uniformity Picture

50% Std. Dev.

4.153%

5.341%

50% DSE

0.221%

0.191%

5% Uniformity Picture

5% Std. Dev.

0.732%

0.666%

5% DSE

0.079%

0.085%

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Black Uniformity

6.6

Black Uniformity Picture With Preferred Local Dimming

Std. Dev.

N/A

Native Black Uniformity Picture

Native Std. Dev.

0.284%

1.610%

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Viewing Angle

6.1

7.3

Viewing Angle Video

Chroma Graph

Color Washout

33°

31°

Hue Graph

Color Shift

54°

50°

Lightness Graph

Brightness Loss

39°

32°

Black Level Raise

18°

70°

Gamma Shift

16°

40°

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Reflections

7.6

Reflections Picture

Average Room Off Picture

Bright Room Off Picture

Screen Finish

Semi-gloss

Total Reflections

4.8%

4.9%

Indirect Reflections

0.6%

0.7%

Calculated Direct Reflections

4.2%

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HDR Native Gradient

6.8

7.5

HDR Gradient Picture

100% Black to 50% Gray

6.0

50% Gray to 100% White

8.0

100% Black to 50% Red

6.0

8.0

50% Red to 100% Red

8.0

100% Black to 50% Green

4.0

6.0

50% Green to 100% Green

8.0

100% Black to 50% Blue

6.0

50% Blue to 100% Blue

8.0

Show Text

Low-Quality Content Smoothing

6.0

7.9

Low-Quality Content Smoothing Picture

Smoothing

5.5

8.0

Detail Preservation

7.0

7.5

Show Text

Upscaling: Sharpness Processing

5.5

7.5

Sharpness Picture - 480p

Show Text

Pixels

Pixels Picture

Subpixel Layout

BGR

RGB

Type

LED

Sub-Type

IPS

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Motion

Response Time

7.9

8.2

Motion Blur Picture

Response Time Chart

80% Response Time

4.8 ms

5.2 ms

100% Response Time

13.1 ms

10.2 ms

Show Text

Flicker-Free

2.1

6.0

Backlight chart

Flicker-Free

PWM Dimming Frequency

150 Hz

240 Hz

Show Text

Black Frame Insertion (BFI)

BFI Picture

BFI Frequency Picture

Optional BFI

Min Flicker For 60 fps

150 Hz

240 Hz

60Hz For 60 fps

120Hz For 120 fps

Min Flicker for 60 fps in Game Mode

150 Hz

240 Hz

Show Text

Motion Interpolation

Motion Interpolation (30 fps) Picture

Motion Interpolation (30 fps)

Yes

Motion Interpolation (60 fps) Picture

Motion Interpolation (60 fps)

Yes

Show Text

Stutter

7.4

6.8

Frame Hold Time @ 24 fps

28.6 ms

31.5 ms

Frame Hold Time @ 60 fps

3.6 ms

6.5 ms

Show Text

24p Judder

Judder-Free 24p

Yes

Judder-Free 24p via 60p

Yes

Judder-Free 24p via 60i

Yes

Judder-Free 24p via Native Apps

Yes

Show Text

Variable Refresh Rate

8.2

9.5

Native Refresh Rate

60 Hz

144 Hz

Variable Refresh Rate

Yes

HDMI Forum VRR

Yes

FreeSync

Yes

G-SYNC Compatible

Yes

4k VRR Maximum

60 Hz

144 Hz

4k VRR Minimum

48 Hz

< 20 Hz

1080p VRR Maximum

120 Hz

144 Hz

1080p VRR Minimum

< 20 Hz

1440p VRR Maximum

120 Hz

144 Hz

1440p VRR Minimum

< 20 Hz

VRR + Local Dimming

No Local Dimming

Show Text

Inputs

Input Lag

9.7

9.5

1080p @ 60Hz

10.5 ms

13.4 ms

1080p @ 60Hz Outside Game Mode

161.7 ms

107.5 ms

1080p @ 120Hz

6.6 ms

4.9 ms

1080p @ 144Hz

N/A

4.3 ms

1440p @ 60Hz

10.7 ms

13.4 ms

1440p @ 120Hz

6.4 ms

5.0 ms

1440p @ 144Hz

N/A

4.3 ms

4k @ 60Hz

10.5 ms

13.3 ms

4k @ 60Hz + 10-Bit HDR

10.4 ms

13.2 ms

4k @ 60Hz @ 4:4:4

10.5 ms

13.3 ms

4k @ 60Hz Outside Game Mode

160.9 ms

107.0 ms

4k @ 60Hz With Interpolation

160.8 ms

23.4 ms

4k @ 120Hz

N/A

4.9 ms

4k @ 144Hz

N/A

4.4 ms

8k @ 60Hz

N/A

Show Text

Supported Resolutions

8.2

9.6

Resolution

480p @ 59.94Hz (Widescreen)

Yes

720p @ 59.94Hz

Yes

1080p @ 60Hz @ 4:4:4

Yes

1080p @ 120Hz

Yes

1080p @ 144Hz

Yes

1440p @ 60Hz

Yes (forced resolution required)

1440p @ 120Hz

Yes

1440p @ 144Hz

Yes

4k @ 60Hz

Yes

4k @ 60Hz @ 4:4:4

Yes

4k @ 120Hz

Yes

4k @ 120Hz @ 4:4:4

Yes

4k @ 144Hz

Yes

8k @ 30Hz or 24Hz

8k @ 60Hz

Show Text

PS5 Compatibility

PS5 Screenshot

Auto Low Latency Mode (ALLM)

Yes

4k @ 120Hz

Yes

1440p @ 120Hz

Yes

1080p @ 120Hz

Yes

HDR

Yes

VRR

Yes

Show Text

Xbox Series X|S Compatibility

Xbox Series X Screenshot

Auto Low Latency Mode (ALLM)

Yes

4k @ 120Hz

Yes

1440p @ 120Hz

Yes

1080p @ 120Hz

Yes

HDR

Yes

VRR

Yes

Show Text

Inputs Specifications

HDR10

Yes

HDR10+

Yes

Dolby Vision

Yes

HLG

Yes

HDMI 2.0 Full Bandwidth

Yes (HDMI 1,2,3)

Yes (HDMI 1,2,3,4)

HDMI 2.1 Class Bandwidth

Yes (HDMI 3,4)

CEC

Yes

HDCP 2.2

Yes (HDMI 1,2,3)

Yes (HDMI 1,2,3,4)

ATSC Tuner

1.0

USB 3.0

Yes (1)

Variable Analog Audio Out

Yes

Wi-Fi Support

Yes (2.4 GHz, 5 GHz)

Show Text

Input Photos

Side Inputs Picture

Rear Inputs Picture

Total Inputs

HDMI

USB

Digital Optical Audio Out

Analog Audio Out 3.5mm

Analog Audio Out RCA

Component In

Composite In

1 (adapter required, not incl.)

Tuner (Cable/Ant)

Ethernet

DisplayPort

IR In

Audio Passthrough

ARC/eARC Port

eARC

eARC: Dolby Atmos Over Dolby Digital Plus

Yes

eARC: Dolby Digital Plus 7.1

Yes

eARC: LPCM 7.1 Over Dolby MAT

Yes

eARC: Dolby TrueHD 7.1

Yes

eARC: DTS:X Over DTS-HD MA

Yes

eARC: DTS-HD Master Audio 7.1

Yes

eARC: LPCM Channels (Bitstream)

7.1

ARC: Dolby Digital 5.1

Yes

ARC: DTS 5.1

Yes

Optical: Dolby Digital 5.1

Yes

Optical: DTS 5.1

Yes

Show Text

Sound Quality

Frequency Response

6.3

6.0

Frequency Response

See details

Low-Frequency Extension

134.54 Hz

119.87 Hz

Std. Dev. @ 70

3.96 dB

3.92 dB

Std. Dev. @ 80

4.01 dB

3.87 dB

Std. Dev. @ Max

4.52 dB

6.09 dB

Max

87.2 dB SPL

86.0 dB SPL

Dynamic Range Compression

2.53 dB

4.31 dB

Show Text

Distortion

7.3

7.7

Total Harmonic Distortion

See details

Weighted THD @ 80

0.045

0.036

Weighted THD @ Max

0.222

0.142

IMD @ 80

2.10%

2.82%

IMD @ Max

10.47%

5.29%

Show Text

Smart Features

Interface

8.0

Smart TV Picture

Smart OS

Google TV

Version

Ease of Use

Average

Smoothness

Very Smooth

Time Taken to Select YouTube

1 s

Time Taken to Change Backlight

2 s

Advanced Options

Many

Show Text

Ad-Free

0.0

Ads Picture

Yes

Opt-out

Opt-out of Suggested Content

Show Text

Apps and Features

9.0

8.0

Apps Picture

App Selection

Great

App Smoothness

Very Smooth

Average

Cast Capable

Yes

USB Drive Playback

Yes

USB Drive HDR Playback

Yes

HDR in Netflix

Yes

HDR in YouTube

Yes

Show Text

Remote

8.5

8.0

Remote Picture

Size

Medium

Voice Control

Many Features

CEC Menu Control

Yes

Other Smart Features

Remote App

Android TV

Hisense RemoteNOW

Show Text

TV Controls

Controls Picture

Show Text

In The Box

In The Box Picture

Show Text

Misc

Power Consumption

54 W

Power Consumption (Max)

188 W

176 W

Firmware

V8-R75PT01-LF1V174

V0039.0100K.O0823

Check Price

100"

100QD7N

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43"

43S551G

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43"

50"

50S551G

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50"

55"

55S551G

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55"

65"

65S551G

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65"

65QD7N

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75"

75S551G

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75"

75QD7N

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85"

85S551G

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85"

85QD7N

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TCL S551G

Hisense QD7N [QD7, QD75N] QLED

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Comparison

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TCL S551G vs Hisense QD7N: Main Discussion

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TCL S551G vs Hisense QD7N [QD7, QD75N] QLED

Side-by-Side Comparison

Products

Our Verdict

Variants

Review

Check Price

Main Differences forMixed Usage

Threshold

Mixed Usage

Contrast

Pre Calibration

Low-Quality Content Smoothing

Black Uniformity

Upscaling: Sharpness Processing

Full Comparison

Mixed Usage

TV Shows

Sports

Video Games

HDR Movies

HDR Gaming

PC Monitor

Style

Design Picture

Curved

Accelerated Longevity Test

Uniformity Pictures

Longevity Graph

Stand

Stand Picture

Back

Back Picture

Wall Mount

Borders

Borders Picture

Borders

Thickness

Thickness Picture

Max Thickness

Build Quality

Build quality picture

Contrast

Contrast Picture

Contrast

Native Contrast

Blooming

Blooming Photo

Lighting Zone Transitions

Preferred LD Video, Moving Object

Local Dimming

Backlight

Dimming Zones Count Of Tested TV

Contrast And Dark Details In Game Mode

Blooming Photo In Game Mode

Preferred LD Video, Moving Object In Game Mode

Game Transitions With VRR And Preferred LD

HDR Brightness

HDR Hallway Photo

HDR Cityscape Photo

HDR Landscape Photo

Hallway Lights (~1950 cd/m²)

Yellow Skyscraper (~700 cd/m²)

Landscape Pool (~300 cd/m²)

Peak 2% Window

Peak 10% Window

Peak 25% Window

Peak 50% Window

Peak 100% Window

Sustained 2% Window

Sustained 10% Window

Sustained 25% Window

Sustained 50% Window

Sustained 100% Window

Automatic Brightness Limiting (ABL)

HDR Brightness In Game Mode

HDR Hallway Photo

HDR Cityscape Photo

HDR Landscape Photo

Hallway Lights (~1950 cd/m²)

Main Differences for
Mixed Usage