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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Stand
    3. Ergonomics
    4. Back
    5. Borders
    6. Thickness
    7. Build Quality
  5. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Horizontal Viewing Angle
    6. Vertical Viewing Angle
    7. Gray Uniformity
    8. Black Uniformity
    9. Pre Calibration
    10. Post Calibration
    11. SDR Color Gamut
    12. SDR Color Volume
    13. HDR Color Gamut
    14. HDR Color Volume
    15. Image Retention
    16. Gradient
    17. Color Bleed
    18. Reflections
    19. Text Clarity
  6. Motion
    1. Response Time @ Max Refresh Rate
    2. Response Time @ 60Hz
    3. Image Flicker
    4. Black Frame Insertion (BFI)
    5. Refresh Rate
  7. Inputs
    1. Input Lag
    2. Resolution And Size
    3. Inputs
    4. Total Inputs
  8. Features
    1. Additional Features
    2. On-Screen Display (OSD)
    3. Controls
    4. In The Box
  9. Comments

HP 27F vs Dell S2721D

Side-by-Side Comparison

Products

HP 27F
Dell S2721D

Tested using Methodology v1.1

Updated Oct 19, 2022 08:21 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.1

Updated Apr 02, 2024 07:57 PM

SEE PRICE
Amazon.com
HP 27F Picture
Dell S2721D Picture

Variants

  • 27f (27")
  • S2721D (27")

Our Verdict

HP 27F

Dell S2721D

For most uses, the Dell S2721D is better than the HP 27F. The Dell has a higher resolution, a better color gamut, and it gets brighter. However, the HP has wider viewing angles, better color accuracy, and faster response time when running at its maximum refresh rate.

0

Main Differences for

Threshold 

0.10

Mixed Usage 

7.0
7.3

Vertical Viewing Angle 
 

6.6
9.2

Resolution And Size 
 

7.1
8.3

Full Comparison

Design

Style  

Design Picture  

HP 27F Design Picture
Dell S2721D Design Picture

Size  

27"
27"

Curved  

No
No

Curve Radius  

Not Curved
Not Curved

Weight (without stand) 
 

7.1 lbs (3.2 kg)
8.2 lbs (3.7 kg)

Weight (with stand) 
 

8.2 lbs (3.7 kg)
9.7 lbs (4.4 kg)

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Stand  

Stand Picture  

HP 27F Stand Picture
Dell S2721D Stand Picture

Width 
 

9.2" (23.4 cm)
9.9" (25.1 cm)

Depth 
 

7.9" (20.1 cm)
7.0" (17.7 cm)

Show text

Ergonomics 
 

1.6
1.5

Ergonomics Picture  

HP 27F Ergonomics Picture
Dell S2721D Ergonomics Picture

Height Adjustment 
 

0.0" (0.0 cm)
0.0" (0.0 cm)

Switch Portrait/Landscape  

No
No

Swivel Range  

No swivel
No swivel

Tilt Range  

-7.5° to 20°
-21° to 5°

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Back  

Back Picture  

HP 27F Back Picture
Dell S2721D Back Picture

Wall Mount  

No Mount
VESA 100x100

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Borders  

Borders Picture  

HP 27F Borders Picture
Dell S2721D Borders Picture

Borders 
 

0.3" (0.8 cm)
0.2" (0.6 cm)

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Thickness  

Thickness Picture  

HP 27F Thickness Picture
Dell S2721D Thickness Picture

Thickness (with stand) 
 

5.4" (13.7 cm)
5.0" (12.6 cm)

Thickness (without stand) 
 

2.6" (6.6 cm)
1.9" (4.8 cm)

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Build Quality 
 

7.0
7.5

Build Quality Picture  

HP 27F Build Quality Picture
Dell S2721D Build Quality Picture

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Picture Quality

Contrast 
 

6.2
6.0

Checkerboard Picture  

HP 27F Checkerboard Picture
Dell S2721D Checkerboard Picture

Native Contrast 
 

1,142 : 1
1,015 : 1

Contrast With Local Dimming 
 

N/A
N/A

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Local Dimming 
 

0.0
0.0

Local Dimming Video  

Local Dimming 
 

No
No

Backlight 
 

Edge
Edge

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SDR Peak Brightness 
 

7.5
7.8

SDR Real Scene 
 

290 cd/m²
316 cd/m²

SDR Peak 2% Window 
 

298 cd/m²
332 cd/m²

SDR Peak 10% Window 
 

298 cd/m²
334 cd/m²

SDR Peak 25% Window 
 

298 cd/m²
334 cd/m²

SDR Peak 50% Window 
 

298 cd/m²
334 cd/m²

SDR Peak 100% Window 
 

298 cd/m²
334 cd/m²

SDR Sustained 2% Window 
 

297 cd/m²
331 cd/m²

SDR Sustained 10% Window 
 

298 cd/m²
333 cd/m²

SDR Sustained 25% Window 
 

298 cd/m²
333 cd/m²

SDR Sustained 50% Window 
 

298 cd/m²
334 cd/m²

SDR Sustained 100% Window 
 

298 cd/m²
334 cd/m²

SDR ABL 
 

0.000
0.000

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HDR Peak Brightness 
 

0.0
0.0

HDR Real Scene 
 

N/A
N/A

HDR Peak 2% Window 
 

N/A
N/A

HDR Peak 10% Window 
 

N/A
N/A

HDR Peak 25% Window 
 

N/A
N/A

HDR Peak 50% Window 
 

N/A
N/A

HDR Peak 100% Window 
 

N/A
N/A

HDR Sustained 2% Window 
 

N/A
N/A

HDR Sustained 10% Window 
 

N/A
N/A

HDR Sustained 25% Window 
 

N/A
N/A

HDR Sustained 50% Window 
 

N/A
N/A

HDR Sustained 100% Window 
 

N/A
N/A

HDR ABL 
 

N/A
N/A

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Horizontal Viewing Angle 
 

8.5
7.8

Horizontal Viewing Angle Video  

Horizontal Chroma Graph  

HP 27F Horizontal Chroma Graph
Dell S2721D Horizontal Chroma Graph

Color Washout From Left 
 

47°
46°

Color Washout From Right 
 

46°
42°

Horizontal Hue Graph  

HP 27F Horizontal Hue Graph
Dell S2721D Horizontal Hue Graph

Color Shift From Left 
 

55°
54°

Color Shift From Right 
 

56°
63°

Horizontal Lightness Graph  

HP 27F Horizontal Lightness Graph
Dell S2721D Horizontal Lightness Graph

Brightness Loss From Left 
 

48°
52°

Brightness Loss From Right 
 

47°
51°

Black Level Raise From Left 
 

70°
70°

Black Level Raise From Right 
 

70°
30°

Gamma Shift From Left 
 

59°
44°

Gamma Shift From Right 
 

58°
39°

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Vertical Viewing Angle 
 

6.6
9.2

Vertical Viewing Angle Video  

Vertical Chroma Graph  

HP 27F Vertical Chroma Graph
Dell S2721D Vertical Chroma Graph

Color Washout From Below 
 

30°
50°

Color Washout From Above 
 

31°
59°

Vertical Hue Graph  

HP 27F Vertical Hue Graph
Dell S2721D Vertical Hue Graph

Color Shift From Below 
 

32°
64°

Color Shift From Above 
 

34°
60°

Vertical Lightness Graph  

HP 27F Vertical Lightness Graph
Dell S2721D Vertical Lightness Graph

Brightness Loss From Below 
 

33°
54°

Brightness Loss From Above 
 

33°
58°

Black Level Raise From Below 
 

59°
70°

Black Level Raise From Above 
 

59°
70°

Gamma Shift From Below 
 

31°
67°

Gamma Shift From Above 
 

31°
70°

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Gray Uniformity 
 

8.9
8.9

50% Uniformity Picture  

HP 27F 50% Uniformity Picture
Dell S2721D 50% Uniformity Picture

50% Std. Dev. 
 

1.554%
2.217%

50% DSE 
 

0.117%
0.090%

5% Uniformity Picture  

HP 27F 5% Uniformity Picture
Dell S2721D 5% Uniformity Picture

5% Std. Dev. 
 

0.199%
0.261%

5% DSE 
 

0.043%
0.047%

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Black Uniformity 
 

6.6
6.7

Native Black Uniformity Picture  

HP 27F Native Black Uniformity Picture
Dell S2721D Native Black Uniformity Picture

Native Std. Dev. 
 

1.592%
1.489%

Black Uniformity Picture With Local Dimming  

HP 27F Black Uniformity Picture With Local Dimming
Dell S2721D Black Uniformity Picture With Local Dimming

Std. Dev. w/ L.D. 
 

N/A
N/A

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Pre Calibration 
 

8.3
6.2

Pre Calibration Picture  

HP 27F Pre Calibration Picture
Dell S2721D Pre Calibration Picture

Pre Gamma Curve Picture  

HP 27F Pre Gamma Curve Picture
Dell S2721D Pre Gamma Curve Picture

Pre Color Picture  

HP 27F Pre Color Picture
Dell S2721D Pre Color Picture

Picture Mode 
 

Custom
Custom Color

Luminance 
 

304 cd/m²
385 cd/m²

Luminance Settings 
 

90
100

Contrast Setting 
 

80
75

RGB Controls 
 

255-255-255
100-100-100

Gamma Setting 
 

No Gamma Setting
No Gamma Setting

Color Temperature 
 

6,723 K
5,806 K

White Balance dE 
 

1.61
4.59

Color dE 
 

2.82
3.60

Gamma 
 

2.13
2.17

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Post Calibration 
 

9.5
9.6

Post Calibration Picture  

HP 27F Post Calibration Picture
Dell S2721D Post Calibration Picture

Post Gamma Curve Picture  

HP 27F Post Gamma Curve Picture
Dell S2721D Post Gamma Curve Picture

Post Color Picture  

HP 27F Post Color Picture
Dell S2721D Post Color Picture

Picture Mode 
 

Custom
Custom Color

Luminance 
 

101 cd/m²
100 cd/m²

Luminance Settings 
 

15
21

Contrast Setting 
 

77
75

RGB Controls 
 

255-253-249
92-94-100

Gamma Setting 
 

No Gamma Setting
No Gamma Setting

Color Temperature 
 

6,447 K
6,543 K

White Balance dE 
 

0.52
0.78

Color dE 
 

0.90
0.48

Gamma 
 

2.17
2.18

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SDR Color Gamut 
 

8.3
8.8

Color Gamut sRGB Picture  

HP 27F Color Gamut sRGB Picture
Dell S2721D Color Gamut sRGB Picture

sRGB xy 
 

92.7%
98.6%

Color Gamut ARGB Picture  

HP 27F Color Gamut ARGB Picture
Dell S2721D Color Gamut ARGB Picture

Adobe RGB xy 
 

71.9%
76.4%

sRGB Picture Mode 
 

Custom
Custom Color

Adobe RGB Picture Mode 
 

Custom
Custom Color

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SDR Color Volume 
 

8.5
9.0

sRGB Color Volume ITP Picture  

HP 27F sRGB Color Volume ITP Picture
Dell S2721D sRGB Color Volume ITP Picture

sRGB In ICtCp 
 

92.6%
97.4%

Adobe RGB Color Volume ITP Picture  

HP 27F Adobe RGB Color Volume ITP Picture
Dell S2721D Adobe RGB Color Volume ITP Picture

Adobe RGB In ICtCp 
 

76.2%
82.3%

sRGB Picture Mode 
 

Custom
Custom Color

Adobe RGB Picture Mode 
 

Custom
Custom Color

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HDR Color Gamut 
 

0.0
0.0

Wide Color Gamut 
 

No
N/A

Color Gamut DCI-P3 Picture  

HP 27F Color Gamut DCI-P3 Picture
Dell S2721D Color Gamut DCI-P3 Picture

DCI P3 xy 
 

N/A
N/A

Color Gamut Rec.2020 Picture  

HP 27F Color Gamut Rec.2020 Picture
Dell S2721D Color Gamut Rec.2020 Picture

Rec. 2020 xy 
 

N/A
N/A

DCI P3 Picture Mode 
 

No HDR
No HDR

Rec. 2020 Picture Mode 
 

No HDR
No HDR

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HDR Color Volume 
 

0.0
0.0

P3 Color Volume ITP Picture  

HP 27F P3 Color Volume ITP Picture
Dell S2721D P3 Color Volume ITP Picture

DCI-P3 In ICtCp 
 

N/A
N/A

2020 Color Volume ITP Picture  

HP 27F 2020 Color Volume ITP Picture
Dell S2721D 2020 Color Volume ITP Picture

Rec. 2020 In ICtCp 
 

N/A
N/A

DCI P3 Picture Mode 
 

No HDR
No HDR

Rec. 2020 Picture Mode 
 

No HDR
No HDR

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Image Retention 
 

10
9.7

Image Retention Picture  

HP 27F Image Retention Picture
Dell S2721D Image Retention Picture

IR After 0 Min Recovery 
 

0.00%
0.08%

IR After 2 Min Recovery 
 

0.00%
0.01%

IR After 4 Min Recovery 
 

0.00%
0.02%

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%

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Gradient 
 

8.4
8.6

Gradient Picture  

HP 27F Gradient Picture
Dell S2721D Gradient Picture

Color Depth 
 

8 Bit
8 Bit

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Color Bleed 
 

10
10

Color Bleed Horizontal  

HP 27F Color Bleed Horizontal
Dell S2721D Color Bleed Horizontal

Pixel Row Error 
 

0.001%
0.000%

Color Bleed Vertical  

HP 27F Color Bleed Vertical
Dell S2721D Color Bleed Vertical

Pixel Column Error 
 

0.000%
0.000%

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Reflections 
 

8.3
8.4

Average Room  

HP 27F Average Room
Dell S2721D Average Room

Average Room Off Picture  

HP 27F Average Room Off Picture
Dell S2721D Average Room Off Picture

Bright Room Off Picture  

HP 27F Bright Room Off Picture
Dell S2721D Bright Room Off Picture

Screen Finish 
 

Matte
Matte

Total Reflections 
 

4.4%
4.3%

Indirect Reflections 
 

3.7%
3.8%

Calculated Direct Reflections 
 

0.7%
0.5%

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Text Clarity 
 

7.0
7.0

ClearType On  

HP 27F ClearType On
Dell S2721D ClearType On

Pixel Type 
 

IPS
IPS

ClearType Off  

HP 27F ClearType Off
Dell S2721D ClearType Off

Pixels  

HP 27F Pixels
Dell S2721D Pixels

Sub-Pixel Layout 
 

RGB
RGB

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Motion

Response Time @ Max Refresh Rate 
 

7.4
7.0

Motion Blur Picture  

HP 27F Motion Blur Picture
Dell S2721D Motion Blur Picture

Response Time Table  

HP 27F Response Time Table
Dell S2721D Response Time Table

Best Overdrive Setting 
 

Level 2 (Fast)
Normal

Rise / Fall Time 
 

7.8 ms
9.8 ms

Total Response Time 
 

17.3 ms
17.4 ms

Overshoot Error 
 

4.9%
0.0%

Dark Rise / Fall Time 
 

8.4 ms
11.8 ms

Dark Total Response Time 
 

18.7 ms
19.8 ms

Dark Overshoot Error 
 

4.7%
0.0%

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Response Time @ 60Hz 
 

6.7
7.3

Motion Blur Picture  

HP 27F Motion Blur Picture
Dell S2721D Motion Blur Picture

Response Time Table  

HP 27F Response Time Table
Dell S2721D Response Time Table

Best Overdrive Setting 
 

Level 2 (Fast)
Normal

Rise / Fall Time 
 

7.5 ms
9.5 ms

Total Response Time 
 

20.4 ms
16 ms

Overshoot Error 
 

8.7%
0.1%

Dark Rise / Fall Time 
 

8.1 ms
11.8 ms

Dark Total Response Time 
 

20.6 ms
18.2 ms

Dark Overshoot Error 
 

11.3%
0.0%

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Image Flicker 
 

10
10

Backlight Picture  

HP 27F Backlight Picture
Dell S2721D Backlight Picture

Flicker-Free  

Yes
Yes

PWM Dimming Frequency 
 

0 Hz
0 Hz

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Black Frame Insertion (BFI) 
 

0.0
0.0

Black Frame Insertion (BFI) 
 

No BFI
No BFI

BFI Picture  

HP 27F BFI Picture
Dell S2721D BFI Picture

BFI Frequency Picture  

HP 27F BFI Frequency Picture
Dell S2721D BFI Frequency Picture

BFI Maximum Frequency 
 

N/A
N/A

BFI Minimum Frequency 
 

N/A
N/A

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Refresh Rate 
 

7.7
7.7

Variable Refresh Rate 
 

FreeSync
FreeSync

Native 
 

75 Hz
75 Hz

Max Refresh Rate 
 

75 Hz
75 Hz

Variable Refresh Rate 
 

Yes
Yes

FreeSync 
 

Yes
Yes

G-SYNC 
 

No
Compatible (Tested)

VRR Maximum 
 

75 Hz
75 Hz

VRR Minimum 
 

48 Hz
48 Hz

VRR Supported Connectors  

HDMI
DisplayPort, HDMI

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Inputs

Input Lag 
 

9.2
9.1

Native Resolution 
 

7.4 ms
6.9 ms

Native Resolution @ 60Hz 
 

8.9 ms
8.6 ms

Variable Refresh Rate 
 

7.8 ms
7.7 ms

Variable Refresh Rate @ 60Hz 
 

8.7 ms
9.4 ms

10 Bit HDR 
 

N/A
N/A

Black Frame Insertion (BFI) 
 

N/A
N/A

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Resolution And Size 
 

7.1
8.3

Native Resolution  

1920 x 1080
2560 x 1440

Aspect Ratio  

16:9
16:9

Megapixels  

2.1 MP
3.7 MP

Pixel Density 
 

82 PPI
109 PPI

Screen Diagonal  

27.0"
27.0"

Screen Area  

311 in²
310 in²

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Inputs  

Inputs 1  

HP 27F Inputs 1
Dell S2721D Inputs 1

Inputs 2  

HP 27F Inputs 2
Dell S2721D Inputs 2

Total Inputs  

DisplayPort  

No
1 (DP 1.2)

Mini DisplayPort  

No
No

HDMI  

2 (HDMI 1.4)
2 (HDMI 1.4)

DVI  

No
No

VGA  

1
No

DisplayPort Out  

No
No

USB  

No
No

USB C  

No
No

Analog Audio Out 3.5mm  

No
1

Microphone In 3.5mm  

No
No

Digital Optical Audio Out  

No
No

Analog Audio Out RCA  

No
No

Power Supply  

External Brick
Internal

Show text

Features

Additional Features 
 

RGB Illumination 
 

No
No

Speakers 
 

No
Yes

HDR10  

No
No

Multiple Input Display 
 

No
No

Show text

On-Screen Display (OSD)  

OSD Picture  

HP 27F OSD Picture
Dell S2721D OSD Picture

Controls  

Controls Picture  

HP 27F Controls Picture
Dell S2721D Controls Picture

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In The Box  

In The Box Picture  

HP 27F In The Box Picture
Dell S2721D In The Box Picture

Show text

HP 27F

Dell S2721D

Comments

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