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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
Lenovo Legion Y27q-20 vs Dell S2721DGF
Side-by-Side Comparison
Products
Lenovo Legion Y27q-20
Dell S2721DGF
Tested using Methodology v1.1
Updated Dec 14, 2023 04:30 PM
SEE PRICE
Walmart.comTested using Methodology v1.2
Updated May 09, 2024 07:49 PM
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Walmart.com
Max Refresh Rate165 Hz
Size27"
Pixel TypeIPS
Variable Refresh RateFreeSync
HDR10Yes
Native Resolution2560 x 1440
Max Refresh Rate165 Hz
Size27"
Pixel TypeIPS
Variable Refresh RateYes
HDR10Yes
Native Resolution2560 x 1440
Variants
- Legion Y27q-20 (27")
- S2721DGF (27")
Our Verdict
Lenovo Legion Y27q-20
Dell S2721DGF
The Lenovo Legion Y27q-20 and the Dell S2721DGF are very similar overall. The Dell has better ergonomics, better reflection handling, and higher peak brightness in both SDR and HDR. However, the Lenovo has significantly better color accuracy out of the box.
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27"
Legion Y27q-20
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S2721DGF
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Legion Y27q-20
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S2721DGF
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Legion Y27q-20
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S2721DGF
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Legion Y27q-20
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S2721DGF
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Legion Y27q-20
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S2721DGF
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Legion Y27q-20
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Two or more of the products selected have been tested with different test methodologies, so some of the results below aren't directly comparable.
Learn how our test benches and scoring system work, and read more about the latest changes to our
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Main Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
8.0
7.7
Ergonomics
7.8
9.2
Full Comparison
Design
Style
Design Picture
Curved
No
No
Curve Radius
Not Curved
Not Curved
Size
27"
27"
Weight (without stand)
9.7 lbs (4.4 kg)
9.9 lbs (4.5 kg)
Weight (with stand)
17.0 lbs (7.7 kg)
14.6 lbs (6.6 kg)
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.5
8.0
Build Quality Picture
Ergonomics
7.8
9.2
Ergonomics Picture
Back Picture
Height Adjustment
5.1" (13.0 cm)
5.1" (13.0 cm)
Tilt Range
-20° to 5°
-20° to 5°
Rotate Portrait/Landscape
Yes, Both Ways
Yes, Both Ways
Swivel Range
-15° to 15°
-45° to 45°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
19.7" (50.0 cm)
10.9" (27.6 cm)
Base Depth
11.0" (28.0 cm)
7.9" (20.0 cm)
Thickness (With Display)
8.1" (20.5 cm)
6.3" (16.0 cm)
Weight (With Display)
17.0 lbs (7.7 kg)
14.6 lbs (6.6 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.1" (61.2 cm)
Housing Height
14.2" (36.1 cm)
Thickness (Without Stand)
2.4" (6.2 cm)
2.6" (6.5 cm)
Weight (Without Stand)
9.7 lbs (4.4 kg)
9.9 lbs (4.5 kg)
Borders Size (Bezels)
0.3" (0.8 cm)
0.3" (0.7 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
External Brick
Internal
Back
Back Picture
Wall Mount
VESA 100x100
VESA 100x100
Borders
Borders Picture
Borders
0.3" (0.8 cm)
0.3" (0.7 cm)
Thickness
Thickness Picture
Thickness (with stand)
8.1" (20.5 cm)
6.3" (16.0 cm)
Thickness (without stand)
2.4" (6.2 cm)
2.6" (6.5 cm)
Picture Quality
Contrast
5.7
5.8
Checkerboard Picture
Native Contrast
851 : 1
882 : 1
Contrast With Local Dimming
N/A
971 : 1
Local Dimming
0.0
1.0
Local Dimming Video
Local Dimming
No
Yes
Backlight
Edge
Edge
SDR Brightness
7.7
8.0
Real Scene
323 cd/m²
341 cd/m²
Peak 2% Window
319 cd/m²
364 cd/m²
Peak 10% Window
323 cd/m²
367 cd/m²
Peak 25% Window
323 cd/m²
368 cd/m²
Peak 50% Window
323 cd/m²
368 cd/m²
Peak 100% Window
324 cd/m²
368 cd/m²
Sustained 2% Window
319 cd/m²
364 cd/m²
Sustained 10% Window
323 cd/m²
367 cd/m²
Sustained 25% Window
323 cd/m²
368 cd/m²
Sustained 50% Window
323 cd/m²
368 cd/m²
Sustained 100% Window
323 cd/m²
368 cd/m²
Automatic Brightness Limiting (ABL)
0.001
0.001
Minimum Brightness
35 cd/m²
HDR Brightness
6.3
6.6
EOTF
VESA DisplayHDR Certification
DisplayHDR 400 - 1.0/1.1
Real Scene
325 cd/m²
328 cd/m²
Peak 2% Window
337 cd/m²
481 cd/m²
Peak 10% Window
339 cd/m²
485 cd/m²
Peak 25% Window
339 cd/m²
486 cd/m²
Peak 50% Window
339 cd/m²
487 cd/m²
Peak 100% Window
339 cd/m²
487 cd/m²
Sustained 2% Window
337 cd/m²
480 cd/m²
Sustained 10% Window
339 cd/m²
484 cd/m²
Sustained 25% Window
339 cd/m²
484 cd/m²
Sustained 50% Window
339 cd/m²
486 cd/m²
Sustained 100% Window
339 cd/m²
486 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.003
Horizontal Viewing Angle
8.4
8.5
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
45°
46°
Color Washout From Right
46°
47°
Horizontal Hue Graph
Color Shift From Left
51°
52°
Color Shift From Right
53°
55°
Horizontal Lightness Graph
Brightness Loss From Left
48°
48°
Brightness Loss From Right
50°
49°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
58°
60°
Gamma Shift From Right
59°
61°
Vertical Viewing Angle
6.3
6.2
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
32°
32°
Color Washout From Above
33°
33°
Vertical Hue Graph
Color Shift From Below
30°
31°
Color Shift From Above
34°
34°
Vertical Lightness Graph
Brightness Loss From Below
38°
36°
Brightness Loss From Above
39°
37°
Black Level Raise From Below
28°
32°
Black Level Raise From Above
30°
22°
Gamma Shift From Below
29°
30°
Gamma Shift From Above
32°
30°
Gray Uniformity
8.5
8.0
50% Uniformity Picture
50% Std. Dev.
3.690%
3.975%
50% DSE
0.111%
0.132%
5% Uniformity Picture
5% Std. Dev.
0.631%
5% DSE
0.062%
Black Uniformity
5.4
3.9
Native Black Uniformity Picture
Native Std. Dev.
2.436%
2.946%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
7.261%
Color Accuracy (Pre-Calibration)
9.6
5.9
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Off
Standard
sRGB Gamut Area xy
137.7%
White Balance dE (Avg.)
0.71
3.43
Color Temperature (Avg.)
6,667 K
6,929 K
Gamma (Avg.)
2.18
2.13
Color dE (Avg.)
0.42
3.55
Contrast Setting
84
75
RGB Settings
sRGB
Default
Gamma Setting
No Gamma Setting
No Gamma Setting
Brightness Setting
55
75
Measured Brightness
216 cd/m²
223 cd/m²
Brightness Locked
No
Color Accuracy (Post-Calibration)
9.7
9.8
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Off
Custom Color
sRGB Gamut Area xy
100.7%
White Balance dE (Avg.)
0.61
0.54
Color Temperature (Avg.)
6,483 K
6,504 K
Gamma (Avg.)
2.18
2.17
Color dE (Avg.)
0.38
0.34
Contrast Setting
84
73
RGB Settings
94-92-99
100-96-97
Gamma Setting
No Gamma Setting
No Gamma Setting
Brightness Setting
16
30
Measured Brightness
100 cd/m²
99 cd/m²
ICC Profile
SDR Color Gamut
9.4
9.4
sRGB Color Gamut Picture
sRGB Coverage xy
100.0%
99.6%
sRGB Picture Mode
Off
Custom Color
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
87.3%
84.5%
Adobe RGB Picture Mode
Off
Custom Color
SDR Color Volume
9.5
9.6
sRGB Color Volume ITP Picture
sRGB In ICtCp
97.6%
97.5%
sRGB Picture Mode
Off
Custom Color
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
91.2%
89.5%
Adobe RGB Picture Mode
Off
Custom Color
HDR Color Gamut
7.1
9.1
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
97.2%
DCI-P3 Picture Mode
HDR On
Desktop
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
69.4%
72.8%
Rec. 2020 Picture Mode
HDR On
Desktop
DCI P3 xy
72.8%
HDR Color Volume
6.4
8.8
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
63.6%
89.8%
DCI-P3 Picture Mode
HDR On
Desktop
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
63.9%
71.0%
Rec. 2020 Picture Mode
HDR On
Desktop
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
7.7
8.1
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
4.9%
4.4%
Indirect Reflections
2.9%
3.0%
Calculated Direct Reflections
2.0%
1.5%
Text Clarity
7.0
7.5
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Gradient
9.9
9.7
Gradient Picture
Color Depth
10 Bit
10 Bit
Color Bleed
9.9
Color Bleed Horizontal
Pixel Row Error
0.002%
Color Bleed Vertical
Pixel Column Error
0.025%
Motion
Refresh Rate
8.5
Native Refresh Rate
165 Hz
165 Hz
Max Refresh Rate
165 Hz
165 Hz
Max Refresh Rate Over DP
165 Hz
Max Refresh Rate Over HDMI
144 Hz
Max Refresh Rate Over DP @ 10-bit
165 Hz
Max Refresh Rate Over HDMI @ 10-Bit
60 Hz
Variable Refresh Rate (VRR)
FreeSync
Yes
Yes
G-SYNC
Compatible (NVIDIA Certified)
Compatible (NVIDIA Certified)
VRR Maximum
165 Hz
165 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
Variable Refresh Rate
FreeSync
Yes
Native
165 Hz
165 Hz
Max Refresh Rate
165 Hz
165 Hz
Variable Refresh Rate
Yes
Response Time @ Max Refresh Rate
9.5
9.0
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
Extreme
Rise / Fall Time
3.5 ms
3.5 ms
Total Response Time
6.9 ms
6.3 ms
Overshoot Error
3.3%
1.9%
Worst 3 Rise / Fall Time
3.7 ms
4.2 ms
Worst 3 Total Response Time
6.4 ms
10.6 ms
Worst 3 Overshoot Error
2.2%
14.7%
Response Time @ 120Hz
8.8
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Super Fast
Rise / Fall Time
4.2 ms
Total Response Time
7.4 ms
Overshoot Error
0.6%
Worst 3 Rise / Fall Time
5.4 ms
Worst 3 Total Response Time
10.8 ms
Worst 3 Overshoot Error
4.8%
Response Time @ 60Hz
8.7
8.0
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Off
Fast
Rise / Fall Time
5.6 ms
4.8 ms
Total Response Time
12.4 ms
11.6 ms
Overshoot Error
0%
1.0%
Worst 3 Rise / Fall Time
6.1 ms
6.5 ms
Worst 3 Total Response Time
12.0 ms
20.2 ms
Worst 3 Overshoot Error
0.0%
5.3%
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
No BFI
No BFI
Maximum Frequency
N/A
N/A
Minimum Frequency
N/A
N/A
Longest Pulse Width Brightness
N/A
Shortest Pulse Width Brightness
N/A
Pulse Width Control
No BFI
Pulse Phase Control
No BFI
Pulse Amplitude Control
No BFI
VRR At The Same Time
No BFI
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
>1000 Hz
Inputs
Input Lag
9.5
9.0
Native Resolution @ Max Hz
3.8 ms
3.7 ms
Native Resolution @ 120Hz
4.8 ms
Native Resolution @ 60Hz
9.1 ms
11.1 ms
Variable Refresh Rate
5.0 ms
Variable Refresh Rate @ 60Hz
10.1 ms
10 Bit HDR
N/A
Backlight Strobing (BFI)
N/A
N/A
Resolution And Size
8.3
8.0
Native Resolution
2560 x 1440
2560 x 1440
Aspect Ratio
16:9
16:9
Megapixels
3.7 MP
3.7 MP
Pixel Density
109 PPI
109 PPI
Measured Screen Diagonal
27.0"
27.0"
Screen Area
310 in²
310 in²
PS5 Compatibility
5.0
PS5 Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
No
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
Yes
VRR
No
Xbox Series X|S Compatibility
5.8
XSX Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
No
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
No
VRR
Yes
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.4)
1 (DP 1.4)
Mini DisplayPort
No
No
HDMI
1 (HDMI 2.0)
2 (HDMI 2.0)
HDMI 2.1 Rated Speed
No HDMI 2.1
DVI
No
No
VGA
No
No
Daisy Chaining
No
3.5mm Audio Out
1
2
HDR10
Yes
Yes
3.5mm Audio In
No
3.5mm Microphone In
No
No
DisplayPort Out
No
USB
3 (USB 3.0)
4
USB C
No
0
Digital Optical Audio Out
No
Analog Audio Out RCA
No
Power Supply
External Brick
Internal
USB
USB-A Ports
3 (USB 3.0)
4
USB-A Rated Speed
5Gbps (USB 3.2 Gen 1)
USB-B Upstream Port
Yes
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
No
No
RGB Illumination
No
Fixed (On/Off)
Multiple Input Display
No
No
KVM Switch
No
HDR10
Yes
Yes
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
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27"
Legion Y27q-20
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S2721DGF
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Legion Y27q-20
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S2721DGF
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Legion Y27q-20
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S2721DGF
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Legion Y27q-20
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S2721DGF
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Legion Y27q-20
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S2721DGF
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Legion Y27q-20
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Lenovo Legion Y27q-20
Dell S2721DGF
Comments
Lenovo Legion Y27q-20 vs Dell S2721DGF: Main Discussion
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