Products
Dell S2421H
Samsung Odyssey G3 F27G35T
Tested using Methodology v1.1
Updated Jun 07, 2024 06:15 PM
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Amazon.com
Tested using Methodology v1.2
Updated Jun 13, 2025 08:53 PM
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Amazon.com
Max Refresh Rate
75 Hz
Size
24"
Pixel Type
IPS
Variable Refresh Rate
FreeSync
HDR10
No
Native Resolution
1920 x 1080
Max Refresh Rate
144 Hz
Size
27"
Pixel Type
VA
Variable Refresh Rate
Yes
HDR10
No
Native Resolution
1920 x 1080
Our Verdict
Dell S2421H
Samsung Odyssey G3 F27G35T
The Samsung Odyssey G3 F27G35T is much better than the Dell S2421H, but it uses a different panel type. The Samsung has a VA panel, which delivers much better contrast for dark-room viewing. The Samsung also has much better ergonomics and a faster refresh rate. On the other hand, the Dell has better viewing angles and a faster response time, despite the faster refresh rate on the Samsung.
Variants
- S2421H (24")
- LF27G35TFWNXZA (27")
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24"
S2421H
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27"
LF27G35TFWNXZA
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Amazon.com
24"
S2421H
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27"
LF27G35TFWNXZA
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24"
S2421H
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27"
LF27G35TFWNXZA
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24"
S2421H
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27"
LF27G35TFWNXZA
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27"
LF27G35TFWNXZA
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Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
6.9
6.6
Ergonomics
1.5
8.9
Response Time @ Max Refresh Rate
7.6
3.7
Resolution And Size
7.1
6.5
Contrast
6.2
8.4
Full Comparison
Design
Style
Design Picture
Curved
No
No
Curve Radius
Not Curved
Not Curved
Size
24"
27"
Weight (without stand)
7.4 lbs (3.3 kg)
10.1 lbs (4.6 kg)
Weight (with stand)
8.7 lbs (3.9 kg)
14.1 lbs (6.4 kg)
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.0
7.5
Build Quality Picture
Ergonomics
1.5
8.9
Ergonomics Picture
Back Picture
Height Adjustment
0.0" (0.0 cm)
4.7" (12.0 cm)
Tilt Range
-20° to 5°
-20° to 5°
Rotate Portrait/Landscape
No
Yes, Both Ways
Swivel Range
No swivel
-30° to 30°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
9.8" (24.8 cm)
20.6" (52.3 cm)
Base Depth
6.1" (15.5 cm)
11.1" (28.1 cm)
Thickness (With Display)
4.4" (11.3 cm)
10.7" (27.1 cm)
Weight (With Display)
8.7 lbs (3.9 kg)
14.1 lbs (6.4 kg)
Display
Display Picture
Size
24"
27"
Housing Width
24.1" (61.3 cm)
Housing Height
14.3" (36.3 cm)
Thickness (Without Stand)
1.9" (4.9 cm)
2.2" (5.6 cm)
Weight (Without Stand)
7.4 lbs (3.3 kg)
10.1 lbs (4.6 kg)
Borders Size (Bezels)
0.2" (0.5 cm)
0.4" (1.0 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
Internal
External Brick
Back
Back Picture
Wall Mount
VESA 100x100
VESA 100x100
Borders
Borders Picture
Borders
0.2" (0.5 cm)
0.4" (1.0 cm)
Thickness
Thickness Picture
Thickness (with stand)
4.4" (11.3 cm)
10.7" (27.1 cm)
Thickness (without stand)
1.9" (4.9 cm)
2.2" (5.6 cm)
Picture Quality
Contrast
6.2
8.4
Checkerboard Picture
Native Contrast
1,126 : 1
4,173 : 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 Brightness
6.9
7.2
Real Scene
250 cd/m²
271 cd/m²
Peak 2% Window
265 cd/m²
277 cd/m²
Peak 10% Window
266 cd/m²
279 cd/m²
Peak 25% Window
266 cd/m²
279 cd/m²
Peak 50% Window
267 cd/m²
279 cd/m²
Peak 100% Window
267 cd/m²
278 cd/m²
Sustained 2% Window
265 cd/m²
276 cd/m²
Sustained 10% Window
266 cd/m²
279 cd/m²
Sustained 25% Window
266 cd/m²
279 cd/m²
Sustained 50% Window
266 cd/m²
279 cd/m²
Sustained 100% Window
266 cd/m²
278 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.000
Minimum Brightness
95 cd/m²
HDR Brightness
0.0
0.0
EOTF
VESA DisplayHDR Certification
No Certification
Real Scene
N/A
N/A
Peak 2% Window
N/A
N/A
Peak 10% Window
N/A
N/A
Peak 25% Window
N/A
N/A
Peak 50% Window
N/A
N/A
Peak 100% Window
N/A
N/A
Sustained 2% Window
N/A
N/A
Sustained 10% Window
N/A
N/A
Sustained 25% Window
N/A
N/A
Sustained 50% Window
N/A
N/A
Sustained 100% Window
N/A
N/A
Automatic Brightness Limiting (ABL)
N/A
N/A
Horizontal Viewing Angle
7.6
6.5
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
36°
41°
Color Washout From Right
39°
37°
Horizontal Hue Graph
Color Shift From Left
48°
56°
Color Shift From Right
50°
70°
Horizontal Lightness Graph
Brightness Loss From Left
44°
38°
Brightness Loss From Right
46°
38°
Black Level Raise From Left
70°
25°
Black Level Raise From Right
70°
24°
Gamma Shift From Left
35°
18°
Gamma Shift From Right
36°
18°
Vertical Viewing Angle
7.0
6.0
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
32°
37°
Color Washout From Above
32°
32°
Vertical Hue Graph
Color Shift From Below
36°
51°
Color Shift From Above
35°
70°
Vertical Lightness Graph
Brightness Loss From Below
33°
35°
Brightness Loss From Above
33°
31°
Black Level Raise From Below
70°
15°
Black Level Raise From Above
70°
13°
Gamma Shift From Below
37°
19°
Gamma Shift From Above
39°
15°
Gray Uniformity
8.6
8.2
50% Uniformity Picture
50% Std. Dev.
3.554%
3.034%
50% DSE
0.109%
0.130%
5% Uniformity Picture
5% Std. Dev.
0.394%
5% DSE
0.056%
Black Uniformity
7.0
6.6
Native Black Uniformity Picture
Native Std. Dev.
1.345%
1.582%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
7.0
8.6
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Standard
Standard
sRGB Gamut Area xy
101.7%
White Balance dE (Avg.)
3.86
2.43
Color Temperature (Avg.)
7,347 K
6,844 K
Gamma (Avg.)
2.21
2.13
Color dE (Avg.)
2.98
2.70
Contrast Setting
75
50
RGB Settings
Default
Warm
Gamma Setting
No Gamma Setting
Mode 1
Brightness Setting
100
50
Measured Brightness
275 cd/m²
182 cd/m²
Brightness Locked
No
Color Accuracy (Post-Calibration)
9.6
9.3
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom Color
Standard
sRGB Gamut Area xy
95.0%
White Balance dE (Avg.)
0.60
0.51
Color Temperature (Avg.)
6,428 K
6,494 K
Gamma (Avg.)
2.18
2.20
Color dE (Avg.)
0.60
0.81
Contrast Setting
75
50
RGB Settings
99-100-93
48-50-46
Gamma Setting
No Gamma Setting
Mode 1
Brightness Setting
29
2
Measured Brightness
100 cd/m²
100 cd/m²
ICC Profile
SDR Color Gamut
8.5
8.6
sRGB Color Gamut Picture
sRGB Coverage xy
95.9%
95.5%
sRGB Picture Mode
Custom Color
Standard
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
73.9%
74.8%
Adobe RGB Picture Mode
Custom Color
Standard
SDR Color Volume
8.6
9.3
sRGB Color Volume ITP Picture
sRGB In ICtCp
94.4%
96.4%
sRGB Picture Mode
Custom Color
Standard
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
77.9%
80.6%
Adobe RGB Picture Mode
Custom Color
Standard
HDR Color Gamut
0.0
0.0
Wide Color Gamut
N/A
N/A
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
N/A
DCI-P3 Picture Mode
No HDR
No HDR
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
N/A
N/A
Rec. 2020 Picture Mode
No HDR
No HDR
DCI P3 xy
N/A
HDR Color Volume
0.0
0.0
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
N/A
N/A
DCI-P3 Picture Mode
No HDR
No HDR
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
N/A
N/A
Rec. 2020 Picture Mode
No HDR
No HDR
Image Retention
10
Image Retention Picture
IR After 0 Min Recovery
0.00%
IR After 2 Min Recovery
0.00%
IR After 4 Min Recovery
0.00%
IR After 6 Min Recovery
0.00%
IR After 8 Min Recovery
0.00%
IR After 10 Min Recovery
0.00%
Reflections
7.8
7.3
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.1%
5.3%
Indirect Reflections
3.8%
2.9%
Calculated Direct Reflections
1.4%
2.6%
Text Clarity
7.0
6.5
ClearType On
ClearType Off
Pixel Type
IPS
VA
Pixels
Subpixel Layout
RGB
RGB
Gradient
7.9
8.6
Gradient Picture
Color Depth
8 Bit
8 Bit
Color Bleed
10
Color Bleed Horizontal
Pixel Row Error
0.003%
Color Bleed Vertical
Pixel Column Error
0.001%
Motion
Refresh Rate
8.3
Native Refresh Rate
75 Hz
144 Hz
Max Refresh Rate
75 Hz
144 Hz
Max Refresh Rate Over DP
144 Hz
Max Refresh Rate Over HDMI
144 Hz
Max Refresh Rate Over DP @ 10-bit
N/A
Max Refresh Rate Over HDMI @ 10-Bit
N/A
Variable Refresh Rate (VRR)
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
Variable Refresh Rate
FreeSync
Yes
Native
75 Hz
144 Hz
Max Refresh Rate
75 Hz
144 Hz
Variable Refresh Rate
Yes
Response Time @ Max Refresh Rate
7.6
3.7
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
On
Rise / Fall Time
7.5 ms
11.3 ms
Total Response Time
16.7 ms
30.9 ms
Overshoot Error
3.0%
2.1%
Worst 3 Rise / Fall Time
8.7 ms
32.9 ms
Worst 3 Total Response Time
18.8 ms
65.8 ms
Worst 3 Overshoot Error
2.0%
19.1%
Response Time @ 120Hz
3.7
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
On
Rise / Fall Time
11.1 ms
Total Response Time
29.6 ms
Overshoot Error
2.8%
Worst 3 Rise / Fall Time
33.2 ms
Worst 3 Total Response Time
59.8 ms
Worst 3 Overshoot Error
24.7%
Response Time @ 60Hz
6.8
4.5
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
On
Rise / Fall Time
7.2 ms
8.8 ms
Total Response Time
20.9 ms
24.6 ms
Overshoot Error
6.6%
5.4%
Worst 3 Rise / Fall Time
8.1 ms
19.3 ms
Worst 3 Total Response Time
21.9 ms
49.2 ms
Worst 3 Overshoot Error
7.4%
38.0%
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
No BFI
Yes
Maximum Frequency
N/A
144 Hz
Minimum Frequency
N/A
120 Hz
Longest Pulse Width Brightness
175 cd/m²
Shortest Pulse Width Brightness
175 cd/m²
Pulse Width Control
No
Pulse Phase Control
No
Pulse Amplitude Control
No
VRR At The Same Time
No
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
9.2
8.7
Native Resolution @ Max Hz
7.4 ms
5.0 ms
Native Resolution @ 120Hz
6.3 ms
Native Resolution @ 60Hz
8.9 ms
10.7 ms
Variable Refresh Rate
7.4 ms
Variable Refresh Rate @ 60Hz
9.2 ms
10 Bit HDR
N/A
Backlight Strobing (BFI)
N/A
7.8 ms
Resolution And Size
7.1
6.5
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
82 PPI
Measured Screen Diagonal
23.8"
27.0"
Screen Area
241 in²
310 in²
PS5 Compatibility
3.0
PS5 Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
No
1440p @ 120Hz
No
1440p @ 60Hz
No
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
No
VRR
No
Xbox Series X|S Compatibility
5.0
XSX Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
No
1440p @ 120Hz
No
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
No
VRR
Yes
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
No
1 (DP 1.2)
Mini DisplayPort
No
No
HDMI
2 (HDMI 1.4)
1 (HDMI 2.0)
HDMI 2.1 Rated Speed
No HDMI 2.1
DVI
No
No
VGA
No
1
Daisy Chaining
No
3.5mm Audio Out
1
1
HDR10
No
No
3.5mm Audio In
No
3.5mm Microphone In
No
No
DisplayPort Out
No
USB
No
0
USB C
No
0
Digital Optical Audio Out
No
Analog Audio Out RCA
No
Power Supply
Internal
External Brick
USB
USB-A Ports
No
0
USB-A Rated Speed
No USB-A Ports
USB-B Upstream Port
No
USB-C Ports
No
0
USB-C Upstream
No USB-C Ports
USB-C Rated Speed
No USB-C Ports
USB-C Power Delivery
No USB-C Ports
USB-C DisplayPort Alt Mode
No USB-C Ports
Thunderbolt
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
No
RGB Illumination
No
No
Multiple Input Display
No
No
KVM Switch
No
HDR10
No
No
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
Check Price
24"
S2421H
SEE PRICE
Amazon.com
27"
LF27G35TFWNXZA
SEE PRICE
Amazon.com
24"
S2421H
SEE PRICE
BestBuy.com
27"
LF27G35TFWNXZA
SEE PRICE
BestBuy.com
24"
S2421H
SEE PRICE
Walmart.com
27"
LF27G35TFWNXZA
SEE PRICE
Walmart.com
24"
S2421H
SEARCH
B&H
27"
LF27G35TFWNXZA
SEARCH
B&H
27"
LF27G35TFWNXZA
SEARCH
Samsung.com
Dell S2421H
Samsung Odyssey G3 F27G35T
Comments
Dell S2421H vs Samsung Odyssey G3 F27G35T: Main Discussion
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