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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
Dell S2421H vs HP X24ih
Side-by-Side Comparison
Products
Dell S2421H
HP X24ih
Tested using Methodology v1.1
Updated Feb 07, 2024 01:47 PM
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Amazon.comTested using Methodology v1.1
Updated May 29, 2023 03:10 PM
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Amazon.com
Size24"
Pixel TypeIPS
Variable Refresh RateFreeSync
Native Resolution1920 x 1080
Max Refresh Rate75 Hz
Size24"
Pixel TypeIPS
Variable Refresh RateFreeSync
Native Resolution1920 x 1080
Max Refresh Rate144 Hz
Variants
- S2421H (24")
- X24ih (24")
Our Verdict
Dell S2421H
HP X24ih
The HP X24ih is much better than the Dell S2421H. The HP has better viewing angles, a faster refresh rate, and a significantly faster response time, resulting in much clearer motion. The HP also has better ergonomics, so it's easier to place it in an ideal viewing position.
Main Differences for
Threshold
Mixed Usage
6.9
7.6
Ergonomics
1.5
6.5
Full Comparison
Design
Style
Design Picture
Size
24"
24"
Curved
No
No
Curve Radius
Not Curved
Not Curved
Weight (without stand)
7.4 lbs (3.3 kg)
8.8 lbs (4.0 kg)
Weight (with stand)
8.7 lbs (3.9 kg)
13.4 lbs (6.1 kg)
Stand
Stand Picture
Width
9.8" (24.8 cm)
9.1" (23.1 cm)
Depth
6.1" (15.5 cm)
8.7" (22.0 cm)
Ergonomics
1.5
6.5
Ergonomics Picture
Height Adjustment
0.0" (0.0 cm)
4.3" (11.0 cm)
Switch Portrait/Landscape
No
Yes, Clockwise
Swivel Range
No swivel
No swivel
Tilt Range
-20° to 5°
-22.5° to 5°
Back
Back Picture
Wall Mount
VESA 100x100
VESA 100x100
Borders
Borders Picture
Borders
0.2" (0.5 cm)
0.2" (0.6 cm)
Thickness
Thickness Picture
Thickness (with stand)
4.4" (11.3 cm)
6.9" (17.5 cm)
Thickness (without stand)
1.9" (4.9 cm)
2.2" (5.6 cm)
Build Quality
7.0
7.0
Build Quality Picture
Picture Quality
Contrast
6.2
5.8
Checkerboard Picture
Native Contrast
1,126 : 1
891 : 1
Contrast With Local Dimming
N/A
N/A
Local Dimming
0.0
0.0
Local Dimming Video
Local Dimming
No
No
Backlight
Edge
Edge
SDR Peak Brightness
6.9
7.9
SDR Real Scene
250 cd/m²
330 cd/m²
SDR Peak 2% Window
265 cd/m²
354 cd/m²
SDR Peak 10% Window
266 cd/m²
354 cd/m²
SDR Peak 25% Window
266 cd/m²
354 cd/m²
SDR Peak 50% Window
267 cd/m²
354 cd/m²
SDR Peak 100% Window
267 cd/m²
354 cd/m²
SDR Sustained 2% Window
265 cd/m²
354 cd/m²
SDR Sustained 10% Window
266 cd/m²
354 cd/m²
SDR Sustained 25% Window
266 cd/m²
354 cd/m²
SDR Sustained 50% Window
266 cd/m²
354 cd/m²
SDR Sustained 100% Window
266 cd/m²
354 cd/m²
SDR ABL
0.000
0.000
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
Horizontal Viewing Angle
7.6
8.7
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
36°
49°
Color Washout From Right
39°
49°
Horizontal Hue Graph
Color Shift From Left
48°
59°
Color Shift From Right
50°
62°
Horizontal Lightness Graph
Brightness Loss From Left
44°
50°
Brightness Loss From Right
46°
51°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
35°
57°
Gamma Shift From Right
36°
59°
Vertical Viewing Angle
7.0
7.7
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
32°
36°
Color Washout From Above
32°
36°
Vertical Hue Graph
Color Shift From Below
36°
55°
Color Shift From Above
35°
58°
Vertical Lightness Graph
Brightness Loss From Below
33°
41°
Brightness Loss From Above
33°
43°
Black Level Raise From Below
70°
70°
Black Level Raise From Above
70°
70°
Gamma Shift From Below
37°
37°
Gamma Shift From Above
39°
38°
Gray Uniformity
8.6
8.6
50% Uniformity Picture
50% Std. Dev.
3.554%
3.320%
50% DSE
0.109%
0.110%
5% Uniformity Picture
5% Std. Dev.
0.394%
0.435%
5% DSE
0.056%
0.046%
Black Uniformity
7.0
5.8
Native Black Uniformity Picture
Native Std. Dev.
1.345%
2.105%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Pre Calibration
7.0
8.0
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Standard
Cinema
Luminance
275 cd/m²
100 cd/m²
Luminance Settings
100
45
Contrast Setting
75
80
RGB Controls
Default
255-255-255
Gamma Setting
No Gamma Setting
No Gamma Setting
Color Temperature
7,347 K
6,978 K
White Balance dE
3.86
2.56
Color dE
2.98
2.54
Gamma
2.21
2.09
Post Calibration
9.6
9.6
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom Color
Custom RGB
Luminance
100 cd/m²
101 cd/m²
Luminance Settings
29
18
Contrast Setting
75
80
RGB Controls
99-100-93
240-229-203
Gamma Setting
No Gamma Setting
No Gamma Setting
Color Temperature
6,428 K
6,448 K
White Balance dE
0.60
0.66
Color dE
0.60
0.41
Gamma
2.18
2.18
SDR Color Gamut
8.5
8.9
Color Gamut sRGB Picture
sRGB xy
95.9%
100.0%
Color Gamut ARGB Picture
Adobe RGB xy
73.9%
77.7%
sRGB Picture Mode
Custom Color
Custom RGB
Adobe RGB Picture Mode
Custom Color
Custom RGB
SDR Color Volume
8.6
8.9
sRGB Color Volume ITP Picture
sRGB In ICtCp
94.4%
96.3%
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
77.9%
81.1%
sRGB Picture Mode
Custom Color
Custom RGB
Adobe RGB Picture Mode
Custom Color
Custom RGB
HDR Color Gamut
0.0
0.0
Wide Color Gamut
N/A
N/A
Color Gamut DCI-P3 Picture
DCI P3 xy
N/A
N/A
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
HDR Color Volume
0.0
0.0
P3 Color Volume ITP Picture
DCI-P3 In ICtCp
N/A
N/A
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
Image Retention
10
10
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%
Gradient
7.9
8.6
Gradient Picture
Color Depth
8 Bit
8 Bit
Color Bleed
10
9.8
Color Bleed Horizontal
Pixel Row Error
0.003%
0.000%
Color Bleed Vertical
Pixel Column Error
0.001%
0.041%
Reflections
7.8
7.8
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.1%
5.2%
Indirect Reflections
3.8%
3.9%
Calculated Direct Reflections
1.4%
1.3%
Text Clarity
7.0
7.0
ClearType On
Pixel Type
IPS
IPS
ClearType Off
Pixels
Sub-Pixel Layout
RGB
RGB
Motion
Response Time @ Max Refresh Rate
7.6
9.6
Motion Blur Picture
Response Time Table
Best Overdrive Setting
Normal
Level 2
Rise / Fall Time
7.5 ms
3.3 ms
Total Response Time
16.7 ms
6.1 ms
Overshoot Error
3.0%
1.7%
Dark Rise / Fall Time
8.7 ms
3.4 ms
Dark Total Response Time
18.8 ms
7.0 ms
Dark Overshoot Error
2.0%
3.4%
Response Time @ 60Hz
6.8
9.2
Motion Blur Picture
Response Time Table
Best Overdrive Setting
Normal
Level 1
Rise / Fall Time
7.2 ms
4.1 ms
Total Response Time
20.9 ms
10.5 ms
Overshoot Error
6.6%
0%
Dark Rise / Fall Time
8.1 ms
4.4 ms
Dark Total Response Time
21.9 ms
10.0 ms
Dark Overshoot Error
7.4%
0.0%
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Black Frame Insertion (BFI)
0.0
0.0
Black Frame Insertion (BFI)
No BFI
No BFI
BFI Picture
BFI Frequency Picture
BFI Maximum Frequency
N/A
N/A
BFI Minimum Frequency
N/A
N/A
Refresh Rate
7.7
9.0
Variable Refresh Rate
FreeSync
FreeSync
Native
75 Hz
144 Hz
Max Refresh Rate
75 Hz
144 Hz
Variable Refresh Rate
Yes
Yes
FreeSync
Yes
Yes
G-SYNC
No
Compatible (Tested)
VRR Maximum
75 Hz
144 Hz
VRR Minimum
48 Hz
< 20 Hz
VRR Supported Connectors
HDMI
DisplayPort, HDMI
Inputs
Input Lag
9.2
9.5
Native Resolution
7.4 ms
4.1 ms
Native Resolution @ 60Hz
8.9 ms
9.1 ms
Variable Refresh Rate
7.4 ms
4.4 ms
Variable Refresh Rate @ 60Hz
9.2 ms
9.4 ms
10 Bit HDR
N/A
N/A
Black Frame Insertion (BFI)
N/A
N/A
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
93 PPI
92 PPI
Screen Diagonal
23.8"
24.0"
Screen Area
241 in²
247 in²
Inputs
Inputs 1
Inputs 2
Total Inputs
DisplayPort
No
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
Yes
No
HDR10
No
No
Multiple Input Display
No
No
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
Dell S2421H
HP X24ih
Comments
Dell S2421H vs HP X24ih: Main Discussion
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