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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

Dell S2721HGF vs HP X24ih

Side-by-Side Comparison

Products

Dell S2721HGF
HP X24ih

Tested using Methodology v1.1

Updated May 29, 2023 03:10 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.1

Updated May 29, 2023 03:10 PM

SEE PRICE
Amazon.com
Dell S2721HGF Picture
HP X24ih Picture

Variants

  • S2721HGF (27")
  • X24ih (24")

Our Verdict

Dell S2721HGF

HP X24ih

The HP X24ih and the Dell S2721DGF are two great gaming monitors with different panel types. The HP has an IPS panel with wider viewing angles, and it also has a much quicker response time that results in smoother motion. However, the VA panel on the Dell provides a better contrast ratio, making it a better choice for dark room gaming. Other than that, they each have FreeSync support and low input lag for gaming.

0

Main Differences for

Threshold 

0.10

Mixed Usage 

7.3
7.6

Vertical Viewing Angle 
 

6.0
7.7

Horizontal Viewing Angle 
 

6.9
8.7

Contrast 
 

8.1
5.8

Full Comparison

Design

Style  

Design Picture  

Dell S2721HGF Design Picture
HP X24ih Design Picture

Size  

27"
24"

Curved  

Yes
No

Curve Radius  

1500R
Not Curved

Weight (without stand) 
 

9.0 lbs (4.1 kg)
8.8 lbs (4.0 kg)

Weight (with stand) 
 

15.0 lbs (6.8 kg)
13.4 lbs (6.1 kg)

Show text

Stand  

Stand Picture  

Dell S2721HGF Stand Picture
HP X24ih Stand Picture

Width 
 

9.2" (23.3 cm)
9.1" (23.1 cm)

Depth 
 

7.6" (19.4 cm)
8.7" (22.0 cm)

Show text

Ergonomics 
 

5.2
6.5

Ergonomics Picture  

Dell S2721HGF Ergonomics Picture
HP X24ih Ergonomics Picture

Height Adjustment 
 

5.0" (12.8 cm)
4.3" (11.0 cm)

Switch Portrait/Landscape  

No
Yes, Clockwise

Swivel Range  

No swivel
No swivel

Tilt Range  

-21° to 5°
-22.5° to 5°

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Back  

Back Picture  

Dell S2721HGF Back Picture
HP X24ih Back Picture

Wall Mount  

VESA 100x100
VESA 100x100

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Borders  

Borders Picture  

Dell S2721HGF Borders Picture
HP X24ih Borders Picture

Borders 
 

0.3" (0.7 cm)
0.2" (0.6 cm)

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Thickness  

Thickness Picture  

Dell S2721HGF Thickness Picture
HP X24ih Thickness Picture

Thickness (with stand) 
 

6.2" (15.8 cm)
6.9" (17.5 cm)

Thickness (without stand) 
 

2.8" (7.1 cm)
2.2" (5.6 cm)

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Build Quality 
 

8.0
7.0

Build Quality Picture  

Dell S2721HGF Build Quality Picture
HP X24ih Build Quality Picture

Show text

Picture Quality

Contrast 
 

8.1
5.8

Checkerboard Picture  

Dell S2721HGF Checkerboard Picture
HP X24ih Checkerboard Picture

Native Contrast 
 

3,432 : 1
891 : 1

Contrast With Local Dimming 
 

N/A
N/A

Show text

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
7.9

SDR Real Scene 
 

288 cd/m²
330 cd/m²

SDR Peak 2% Window 
 

320 cd/m²
354 cd/m²

SDR Peak 10% Window 
 

322 cd/m²
354 cd/m²

SDR Peak 25% Window 
 

322 cd/m²
354 cd/m²

SDR Peak 50% Window 
 

322 cd/m²
354 cd/m²

SDR Peak 100% Window 
 

322 cd/m²
354 cd/m²

SDR Sustained 2% Window 
 

320 cd/m²
354 cd/m²

SDR Sustained 10% Window 
 

321 cd/m²
354 cd/m²

SDR Sustained 25% Window 
 

322 cd/m²
354 cd/m²

SDR Sustained 50% Window 
 

322 cd/m²
354 cd/m²

SDR Sustained 100% Window 
 

322 cd/m²
354 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

Show text

Horizontal Viewing Angle 
 

6.9
8.7

Horizontal Viewing Angle Video  

Horizontal Chroma Graph  

Dell S2721HGF Horizontal Chroma Graph
HP X24ih Horizontal Chroma Graph

Color Washout From Left 
 

46°
49°

Color Washout From Right 
 

45°
49°

Horizontal Hue Graph  

Dell S2721HGF Horizontal Hue Graph
HP X24ih Horizontal Hue Graph

Color Shift From Left 
 

68°
59°

Color Shift From Right 
 

69°
62°

Horizontal Lightness Graph  

Dell S2721HGF Horizontal Lightness Graph
HP X24ih Horizontal Lightness Graph

Brightness Loss From Left 
 

46°
50°

Brightness Loss From Right 
 

45°
51°

Black Level Raise From Left 
 

23°
70°

Black Level Raise From Right 
 

21°
70°

Gamma Shift From Left 
 

18°
57°

Gamma Shift From Right 
 

17°
59°

Show text

Vertical Viewing Angle 
 

6.0
7.7

Vertical Viewing Angle Video  

Vertical Chroma Graph  

Dell S2721HGF Vertical Chroma Graph
HP X24ih Vertical Chroma Graph

Color Washout From Below 
 

33°
36°

Color Washout From Above 
 

34°
36°

Vertical Hue Graph  

Dell S2721HGF Vertical Hue Graph
HP X24ih Vertical Hue Graph

Color Shift From Below 
 

53°
55°

Color Shift From Above 
 

54°
58°

Vertical Lightness Graph  

Dell S2721HGF Vertical Lightness Graph
HP X24ih Vertical Lightness Graph

Brightness Loss From Below 
 

35°
41°

Brightness Loss From Above 
 

35°
43°

Black Level Raise From Below 
 

16°
70°

Black Level Raise From Above 
 

15°
70°

Gamma Shift From Below 
 

17°
37°

Gamma Shift From Above 
 

19°
38°

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Gray Uniformity 
 

8.6
8.6

50% Uniformity Picture  

Dell S2721HGF 50% Uniformity Picture
HP X24ih 50% Uniformity Picture

50% Std. Dev. 
 

3.023%
3.320%

50% DSE 
 

0.114%
0.110%

5% Uniformity Picture  

Dell S2721HGF 5% Uniformity Picture
HP X24ih 5% Uniformity Picture

5% Std. Dev. 
 

0.599%
0.435%

5% DSE 
 

0.072%
0.046%

Show text

Black Uniformity 
 

5.4
5.8

Native Black Uniformity Picture  

Dell S2721HGF Native Black Uniformity Picture
HP X24ih Native Black Uniformity Picture

Native Std. Dev. 
 

2.427%
2.105%

Black Uniformity Picture With Local Dimming  

Dell S2721HGF Black Uniformity Picture With Local Dimming
HP X24ih Black Uniformity Picture With Local Dimming

Std. Dev. w/ L.D. 
 

N/A
N/A

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Pre Calibration 
 

8.0
8.0

Pre Calibration Picture  

Dell S2721HGF Pre Calibration Picture
HP X24ih Pre Calibration Picture

Pre Gamma Curve Picture  

Dell S2721HGF Pre Gamma Curve Picture
HP X24ih Pre Gamma Curve Picture

Pre Color Picture  

Dell S2721HGF Pre Color Picture
HP X24ih Pre Color Picture

Picture Mode 
 

Standard
Cinema

Luminance 
 

250 cd/m²
100 cd/m²

Luminance Settings 
 

75
45

Contrast Setting 
 

75
80

RGB Controls 
 

100-100-100
255-255-255

Gamma Setting 
 

No Gamma Setting
No Gamma Setting

Color Temperature 
 

6,353 K
6,978 K

White Balance dE 
 

2.73
2.56

Color dE 
 

2.27
2.54

Gamma 
 

2.25
2.09

Show text

Post Calibration 
 

9.7
9.6

Post Calibration Picture  

Dell S2721HGF Post Calibration Picture
HP X24ih Post Calibration Picture

Post Gamma Curve Picture  

Dell S2721HGF Post Gamma Curve Picture
HP X24ih Post Gamma Curve Picture

Post Color Picture  

Dell S2721HGF Post Color Picture
HP X24ih Post Color Picture

Picture Mode 
 

Custom Color
Custom RGB

Luminance 
 

99 cd/m²
101 cd/m²

Luminance Settings 
 

21
18

Contrast Setting 
 

78
80

RGB Controls 
 

100-98-100
240-229-203

Gamma Setting 
 

No Gamma Setting
No Gamma Setting

Color Temperature 
 

6,536 K
6,448 K

White Balance dE 
 

0.48
0.66

Color dE 
 

0.61
0.41

Gamma 
 

2.18
2.18

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SDR Color Gamut 
 

8.6
8.9

Color Gamut sRGB Picture  

Dell S2721HGF Color Gamut sRGB Picture
HP X24ih Color Gamut sRGB Picture

sRGB xy 
 

96.8%
100.0%

Color Gamut ARGB Picture  

Dell S2721HGF Color Gamut ARGB Picture
HP X24ih Color Gamut ARGB Picture

Adobe RGB xy 
 

75.8%
77.7%

sRGB Picture Mode 
 

Custom Color
Custom RGB

Adobe RGB Picture Mode 
 

Custom Color
Custom RGB

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SDR Color Volume 
 

8.9
8.9

sRGB Color Volume ITP Picture  

Dell S2721HGF sRGB Color Volume ITP Picture
HP X24ih sRGB Color Volume ITP Picture

sRGB In ICtCp 
 

97.1%
96.3%

Adobe RGB Color Volume ITP Picture  

Dell S2721HGF Adobe RGB Color Volume ITP Picture
HP X24ih Adobe RGB Color Volume ITP Picture

Adobe RGB In ICtCp 
 

81.3%
81.1%

sRGB Picture Mode 
 

Custom Color
Custom RGB

Adobe RGB Picture Mode 
 

Custom Color
Custom RGB

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HDR Color Gamut 
 

0.0
0.0

Wide Color Gamut 
 

N/A
N/A

Color Gamut DCI-P3 Picture  

Dell S2721HGF Color Gamut DCI-P3 Picture
HP X24ih Color Gamut DCI-P3 Picture

DCI P3 xy 
 

N/A
N/A

Color Gamut Rec.2020 Picture  

Dell S2721HGF Color Gamut Rec.2020 Picture
HP X24ih 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  

Dell S2721HGF P3 Color Volume ITP Picture
HP X24ih P3 Color Volume ITP Picture

DCI-P3 In ICtCp 
 

N/A
N/A

2020 Color Volume ITP Picture  

Dell S2721HGF 2020 Color Volume ITP Picture
HP X24ih 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
10

Image Retention Picture  

Dell S2721HGF Image Retention Picture
HP X24ih 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%

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Gradient 
 

8.6
8.6

Gradient Picture  

Dell S2721HGF Gradient Picture
HP X24ih Gradient Picture

Color Depth 
 

8 Bit
8 Bit

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Color Bleed 
 

10
9.8

Color Bleed Horizontal  

Dell S2721HGF Color Bleed Horizontal
HP X24ih Color Bleed Horizontal

Pixel Row Error 
 

0.000%
0.000%

Color Bleed Vertical  

Dell S2721HGF Color Bleed Vertical
HP X24ih Color Bleed Vertical

Pixel Column Error 
 

0.001%
0.041%

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Reflections 
 

7.9
7.8

Average Room  

Dell S2721HGF Average Room
HP X24ih Average Room

Average Room Off Picture  

Dell S2721HGF Average Room Off Picture
HP X24ih Average Room Off Picture

Bright Room Off Picture  

Dell S2721HGF Bright Room Off Picture
HP X24ih Bright Room Off Picture

Screen Finish 
 

Matte
Matte

Total Reflections 
 

4.5%
5.2%

Indirect Reflections 
 

2.7%
3.9%

Calculated Direct Reflections 
 

1.8%
1.3%

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Text Clarity 
 

7.0
7.0

ClearType On  

Dell S2721HGF ClearType On
HP X24ih ClearType On

Pixel Type 
 

VA
IPS

ClearType Off  

Dell S2721HGF ClearType Off
HP X24ih ClearType Off

Pixels  

Dell S2721HGF Pixels
HP X24ih Pixels

Sub-Pixel Layout 
 

RGB
RGB

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Motion

Response Time @ Max Refresh Rate 
 

8.6
9.6

Motion Blur Picture  

Dell S2721HGF Motion Blur Picture
HP X24ih Motion Blur Picture

Response Time Table  

Dell S2721HGF Response Time Table
HP X24ih Response Time Table

Best Overdrive Setting 
 

Super Fast
Level 2

Rise / Fall Time 
 

5.0 ms
3.3 ms

Total Response Time 
 

13.0 ms
6.1 ms

Overshoot Error 
 

3.5%
1.7%

Dark Rise / Fall Time 
 

4.0 ms
3.4 ms

Dark Total Response Time 
 

14.8 ms
7.0 ms

Dark Overshoot Error 
 

8.3%
3.4%

Show text

Response Time @ 60Hz 
 

7.1
9.2

Motion Blur Picture  

Dell S2721HGF Motion Blur Picture
HP X24ih Motion Blur Picture

Response Time Table  

Dell S2721HGF Response Time Table
HP X24ih Response Time Table

Best Overdrive Setting 
 

Super Fast
Level 1

Rise / Fall Time 
 

6.0 ms
4.1 ms

Total Response Time 
 

19.6 ms
10.5 ms

Overshoot Error 
 

6.4%
0%

Dark Rise / Fall Time 
 

6.5 ms
4.4 ms

Dark Total Response Time 
 

24.5 ms
10.0 ms

Dark Overshoot Error 
 

10.9%
0.0%

Show text

Image Flicker 
 

10
10

Backlight Picture  

Dell S2721HGF Backlight Picture
HP X24ih Backlight Picture

Flicker-Free  

Yes
Yes

PWM Dimming Frequency 
 

0 Hz
0 Hz

Show text

Black Frame Insertion (BFI) 
 

6.0
0.0

Black Frame Insertion (BFI) 
 

Yes
No BFI

BFI Picture  

Dell S2721HGF BFI Picture
HP X24ih BFI Picture

BFI Frequency Picture  

Dell S2721HGF BFI Frequency Picture
HP X24ih BFI Frequency Picture

BFI Maximum Frequency 
 

144 Hz
N/A

BFI Minimum Frequency 
 

120 Hz
N/A

Show text

Refresh Rate 
 

9.0
9.0

Variable Refresh Rate 
 

Adaptive Sync
FreeSync

Native 
 

144 Hz
144 Hz

Max Refresh Rate 
 

144 Hz
144 Hz

Variable Refresh Rate 
 

Yes
Yes

FreeSync 
 

Yes
Yes

G-SYNC 
 

Compatible (NVIDIA Certified)
Compatible (Tested)

VRR Maximum 
 

144 Hz
144 Hz

VRR Minimum 
 

< 20 Hz
< 20 Hz

VRR Supported Connectors  

DisplayPort, HDMI
DisplayPort, HDMI

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Inputs

Input Lag 
 

9.5
9.5

Native Resolution 
 

4.1 ms
4.1 ms

Native Resolution @ 60Hz 
 

8.9 ms
9.1 ms

Variable Refresh Rate 
 

4.9 ms
4.4 ms

Variable Refresh Rate @ 60Hz 
 

9.9 ms
9.4 ms

10 Bit HDR 
 

N/A
N/A

Black Frame Insertion (BFI) 
 

8.9 ms
N/A

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Resolution And Size 
 

7.1
7.1

Native Resolution  

1920 x 1080
1920 x 1080

Aspect Ratio  

16:9
16:9

Megapixels  

2.1 MP
2.1 MP

Pixel Density 
 

82 PPI
92 PPI

Screen Diagonal  

27.0"
24.0"

Screen Area  

310 in²
247 in²

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Inputs  

Inputs 1  

Dell S2721HGF Inputs 1
HP X24ih Inputs 1

Inputs 2  

Dell S2721HGF Inputs 2
HP X24ih Inputs 2

Total Inputs  

DisplayPort  

1 (DP 1.4)
1 (DP 1.2)

Mini DisplayPort  

No
No

HDMI  

2 (HDMI 1.4)
1 (HDMI 2.0)

DVI  

No
No

VGA  

No
No

DisplayPort Out  

No
No

USB  

No
No

USB C  

No
No

Analog Audio Out 3.5mm  

1
1

Microphone In 3.5mm  

No
No

Digital Optical Audio Out  

No
No

Analog Audio Out RCA  

No
No

Power Supply  

Internal
Internal
Features

Additional Features 
 

RGB Illumination 
 

No
No

Speakers 
 

No
No

HDR10  

No
No

Multiple Input Display 
 

No
No

Show text

On-Screen Display (OSD)  

OSD Picture  

Dell S2721HGF OSD Picture
HP X24ih OSD Picture

Controls  

Controls Picture  

Dell S2721HGF Controls Picture
HP X24ih Controls Picture

Show text

In The Box  

In The Box Picture  

Dell S2721HGF In The Box Picture
HP X24ih In The Box Picture

Show text

Dell S2721HGF

HP X24ih

Comments

  1. Comparison

Dell S2721HGF vs HP X24ih: Main Discussion

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