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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
LG 38WN95C-W vs Dell UltraSharp U4021QW
Side-by-Side Comparison
Products
LG 38WN95C-W
Dell UltraSharp U4021QW
Tested using Methodology v1.2
Updated Jul 24, 2024 06:57 PM
SEE PRICE
Amazon.comTested using Methodology v1.1
Updated May 03, 2024 05:02 PM
SEE PRICE
Amazon.com
Max Refresh Rate144 Hz
Size38"
Pixel TypeIPS
Variable Refresh RateYes
HDR10Yes
Native Resolution3840 x 1600
Max Refresh Rate60 Hz
Size40"
Pixel TypeIPS
Variable Refresh RateNo VRR
HDR10No
Native Resolution5120 x 2160
Variants
- 38WN95C-W (38")
- UltraSharp U4021QW (40")
Our Verdict
LG 38WN95C-W
Dell UltraSharp U4021QW
The LG 38WN95C-W and the Dell UltraSharp U4021QW are both ultrawide monitors with different advantages and disadvantages. The LG is better for gaming, as it has a much faster response time for clear motion, lower input lag, 144Hz refresh rate, and VRR support. The Dell, however, is a bit bigger, and its 5120x2160 resolution delivers an incredibly crisp image and exceptional text clarity that may appeal to some despite its lack of extra bells and whistles.
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38"
38WN95C-W
Searching
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UltraSharp U4021QW
Searching
Finding store38"
38WN95C-W
Searching
Finding store40"
UltraSharp U4021QW
Searching
Finding store38"
38WN95C-W
Searching
Finding store40"
UltraSharp U4021QW
Searching
Finding store38"
38WN95C-W
Searching
Finding store40"
UltraSharp U4021QW
Searching
Finding store38"
38WN95C-W
Searching
Finding store40"
UltraSharp U4021QW
Searching
Finding store38"
38WN95C-W
Searching
Finding storeNotice:
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
monitors test methodology.
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Main Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
7.9
7.5
Text Clarity
7.5
9.5
Resolution And Size
8.6
9.4
SDR Brightness
8.4
7.1
HDR Color Gamut
8.7
0.0
HDR Brightness
8.1
0.0
HDR Color Volume
8.2
0.0
Full Comparison
Design
Style
Design Picture
Curved
Yes
Yes
Curve Radius
2300R
2500R
Size
38"
40"
Weight (without stand)
14.3 lbs (6.5 kg)
20.9 lbs (9.5 kg)
Weight (with stand)
18.5 lbs (8.4 kg)
30.4 lbs (13.8 kg)
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.5
7.0
Build Quality Picture
Ergonomics
6.3
6.4
Ergonomics Picture
Back Picture
Height Adjustment
4.3" (11.0 cm)
4.7" (12.0 cm)
Tilt Range
-15° to 2.5°
-20° to 5°
Rotate Portrait/Landscape
No
No
Swivel Range
-20° to 20°
-35° to 35°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
21.7" (55.2 cm)
15.2" (38.5 cm)
Base Depth
11.1" (28.2 cm)
9.7" (24.7 cm)
Thickness (With Display)
9.0" (22.8 cm)
8.3" (21.1 cm)
Weight (With Display)
18.5 lbs (8.4 kg)
30.4 lbs (13.8 kg)
Display
Display Picture
Size
38"
40"
Housing Width
35.4" (89.8 cm)
Housing Height
15.7" (39.9 cm)
Thickness (Without Stand)
3.8" (9.6 cm)
4.0" (10.1 cm)
Weight (Without Stand)
14.3 lbs (6.5 kg)
20.9 lbs (9.5 kg)
Borders Size (Bezels)
0.4" (1.1 cm)
0.4" (1.1 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
0.4" (1.1 cm)
0.4" (1.1 cm)
Thickness
Thickness Picture
Thickness (with stand)
9.0" (22.8 cm)
8.3" (21.1 cm)
Thickness (without stand)
3.8" (9.6 cm)
4.0" (10.1 cm)
Picture Quality
Contrast
5.8
5.9
Checkerboard Picture
Native Contrast
898 : 1
943 : 1
Contrast With Local Dimming
918 : 1
N/A
Local Dimming
1.5
0.0
Local Dimming Video
Local Dimming
Yes
No
Backlight
Edge
Edge
SDR Brightness
8.4
7.1
Real Scene
447 cd/m²
256 cd/m²
Peak 2% Window
475 cd/m²
279 cd/m²
Peak 10% Window
476 cd/m²
279 cd/m²
Peak 25% Window
476 cd/m²
280 cd/m²
Peak 50% Window
477 cd/m²
280 cd/m²
Peak 100% Window
477 cd/m²
280 cd/m²
Sustained 2% Window
474 cd/m²
278 cd/m²
Sustained 10% Window
476 cd/m²
279 cd/m²
Sustained 25% Window
475 cd/m²
279 cd/m²
Sustained 50% Window
476 cd/m²
279 cd/m²
Sustained 100% Window
476 cd/m²
280 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.000
Minimum Brightness
80 cd/m²
HDR Brightness
8.1
0.0
EOTF
VESA DisplayHDR Certification
DisplayHDR 600
Real Scene
711 cd/m²
N/A
Peak 2% Window
719 cd/m²
N/A
Peak 10% Window
692 cd/m²
N/A
Peak 25% Window
695 cd/m²
N/A
Peak 50% Window
696 cd/m²
N/A
Peak 100% Window
696 cd/m²
N/A
Sustained 2% Window
718 cd/m²
N/A
Sustained 10% Window
520 cd/m²
N/A
Sustained 25% Window
521 cd/m²
N/A
Sustained 50% Window
521 cd/m²
N/A
Sustained 100% Window
522 cd/m²
N/A
Automatic Brightness Limiting (ABL)
0.020
N/A
Horizontal Viewing Angle
7.8
8.0
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
42°
43°
Color Washout From Right
41°
45°
Horizontal Hue Graph
Color Shift From Left
51°
49°
Color Shift From Right
53°
51°
Horizontal Lightness Graph
Brightness Loss From Left
47°
49°
Brightness Loss From Right
46°
51°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
39°
40°
Gamma Shift From Right
36°
41°
Vertical Viewing Angle
7.2
7.1
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
31°
33°
Color Washout From Above
32°
30°
Vertical Hue Graph
Color Shift From Below
41°
38°
Color Shift From Above
43°
33°
Vertical Lightness Graph
Brightness Loss From Below
34°
36°
Brightness Loss From Above
35°
32°
Black Level Raise From Below
70°
70°
Black Level Raise From Above
70°
70°
Gamma Shift From Below
42°
43°
Gamma Shift From Above
41°
36°
Gray Uniformity
7.5
8.5
50% Uniformity Picture
50% Std. Dev.
3.761%
2.994%
50% DSE
0.165%
0.122%
5% Uniformity Picture
5% Std. Dev.
0.398%
5% DSE
0.032%
Black Uniformity
6.4
6.8
Native Black Uniformity Picture
Native Std. Dev.
1.724%
1.434%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
1.614%
N/A
Color Accuracy (Pre-Calibration)
8.4
9.1
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
sRGB
Color Space (sRGB)
sRGB Gamut Area xy
104.0%
White Balance dE (Avg.)
2.67
1.50
Color Temperature (Avg.)
6,676 K
6,281 K
Gamma (Avg.)
2.17
2.16
Color dE (Avg.)
2.46
0.99
Contrast Setting
70
75
RGB Settings
Default
Default
Gamma Setting
Default
No Gamma Setting
Brightness Setting
35
75
Measured Brightness
130 cd/m²
210 cd/m²
Brightness Locked
No
Color Accuracy (Post-Calibration)
9.8
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom
Custom Color
sRGB Gamut Area xy
100.4%
White Balance dE (Avg.)
0.53
0.65
Color Temperature (Avg.)
6,507 K
6,456 K
Gamma (Avg.)
2.19
2.18
Color dE (Avg.)
0.31
0.31
Contrast Setting
70
75
RGB Settings
50-50-48
98-97-100
Gamma Setting
Mode 2
No Gamma Setting
Brightness Setting
3
28
Measured Brightness
100 cd/m²
100 cd/m²
ICC Profile
SDR Color Gamut
9.5
9.4
sRGB Color Gamut Picture
sRGB Coverage xy
100.0%
100.0%
sRGB Picture Mode
Custom
Custom Color
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
85.6%
88.5%
Adobe RGB Picture Mode
Custom
Custom Color
SDR Color Volume
9.6
9.6
sRGB Color Volume ITP Picture
sRGB In ICtCp
97.0%
98.2%
sRGB Picture Mode
Custom
Custom Color
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
89.6%
93.2%
Adobe RGB Picture Mode
Custom
Custom Color
HDR Color Gamut
8.7
0.0
Wide Color Gamut
Yes
N/A
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
94.1%
DCI-P3 Picture Mode
Custom
No HDR
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
69.4%
N/A
Rec. 2020 Picture Mode
Custom
No HDR
DCI P3 xy
N/A
HDR Color Volume
8.2
0.0
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
83.9%
N/A
DCI-P3 Picture Mode
Custom
No HDR
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
67.8%
N/A
Rec. 2020 Picture Mode
Custom
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
6.9
6.7
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
6.4%
6.6%
Indirect Reflections
3.4%
3.2%
Calculated Direct Reflections
3.0%
3.4%
Text Clarity
7.5
9.5
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Gradient
9.9
9.8
Gradient Picture
Color Depth
10 Bit
10 Bit
Color Bleed
10
Color Bleed Horizontal
Pixel Row Error
0.001%
Color Bleed Vertical
Pixel Column Error
0.001%
Motion
Refresh Rate
8.3
Native Refresh Rate
144 Hz
60 Hz
Max Refresh Rate
144 Hz
60 Hz
Max Refresh Rate Over DP
144 Hz
Max Refresh Rate Over HDMI
75 Hz
Max Refresh Rate Over DP @ 10-bit
120 Hz
Max Refresh Rate Over HDMI @ 10-Bit
30 Hz
Variable Refresh Rate (VRR)
FreeSync
Yes
No
G-SYNC
Compatible (NVIDIA Certified)
No
VRR Maximum
144 Hz
N/A
VRR Minimum
< 20 Hz
No VRR
VRR Supported Connectors
DisplayPort, HDMI
No VRR
Variable Refresh Rate
Yes
No VRR
Native
144 Hz
60 Hz
Max Refresh Rate
144 Hz
60 Hz
Variable Refresh Rate
No
Response Time @ Max Refresh Rate
9.0
7.2
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
Normal
Rise / Fall Time
3.9 ms
6.5 ms
Total Response Time
7.1 ms
18.7 ms
Overshoot Error
0.3%
7.5%
Worst 3 Rise / Fall Time
4.9 ms
6.6 ms
Worst 3 Total Response Time
9.0 ms
20.3 ms
Worst 3 Overshoot Error
3.0%
12.5%
Response Time @ 120Hz
8.9
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
Rise / Fall Time
3.9 ms
Total Response Time
7.4 ms
Overshoot Error
0.9%
Worst 3 Rise / Fall Time
4.8 ms
Worst 3 Total Response Time
10.8 ms
Worst 3 Overshoot Error
7.2%
Response Time @ 60Hz
8.1
7.2
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
Normal
Rise / Fall Time
3.9 ms
6.5 ms
Total Response Time
11.5 ms
18.7 ms
Overshoot Error
2.4%
7.5%
Worst 3 Rise / Fall Time
4.8 ms
6.6 ms
Worst 3 Total Response Time
21.6 ms
20.3 ms
Worst 3 Overshoot Error
13.1%
12.5%
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
0 Hz
Inputs
Input Lag
8.9
9.0
Native Resolution @ Max Hz
4.1 ms
8.9 ms
Native Resolution @ 120Hz
5.1 ms
Native Resolution @ 60Hz
9.3 ms
8.9 ms
Variable Refresh Rate
N/A
Variable Refresh Rate @ 60Hz
N/A
10 Bit HDR
N/A
Backlight Strobing (BFI)
N/A
N/A
Resolution And Size
8.6
9.4
Native Resolution
3840 x 1600
5120 x 2160
Aspect Ratio
21:9
21:9
Megapixels
6.1 MP
11.1 MP
Pixel Density
111 PPI
137 PPI
Measured Screen Diagonal
37.5"
40.0"
Screen Area
498 in²
581 in²
PS5 Compatibility
6.0
PS5 Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
No
1080p @ 60Hz
Yes
HDR
Yes
VRR
No
Xbox Series X|S Compatibility
9.2
XSX Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
Yes
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
2 (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
1
HDR10
Yes
No
3.5mm Audio In
No
3.5mm Microphone In
No
No
DisplayPort Out
No
USB
2
4 (USB 3.0)
USB C
1
2 (1x Thunderbolt 3, PD, DP Alt Mode, 1x USB 3.2 Gen 2)
Digital Optical Audio Out
No
Analog Audio Out RCA
No
Power Supply
External Brick
Internal
USB
USB-A Ports
2
4 (USB 3.0)
USB-A Rated Speed
5Gbps (USB 3.2 Gen 1)
USB-B Upstream Port
No
USB-C Ports
1
2 (1x Thunderbolt 3, PD, DP Alt Mode, 1x USB 3.2 Gen 2)
USB-C Upstream
Yes
USB-C Rated Speed
40Gbps (USB4)
USB-C Power Delivery
90W
USB-C DisplayPort Alt Mode
Yes
Thunderbolt
Thunderbolt 3
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
Yes
RGB Illumination
No
No
Multiple Input Display
PBP
PIP + PBP
KVM Switch
No
HDR10
Yes
No
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
Check Price
38"
38WN95C-W
Searching
Finding store40"
UltraSharp U4021QW
Searching
Finding store38"
38WN95C-W
Searching
Finding store40"
UltraSharp U4021QW
Searching
Finding store38"
38WN95C-W
Searching
Finding store40"
UltraSharp U4021QW
Searching
Finding store38"
38WN95C-W
Searching
Finding store40"
UltraSharp U4021QW
Searching
Finding store38"
38WN95C-W
Searching
Finding store40"
UltraSharp U4021QW
Searching
Finding store38"
38WN95C-W
Searching
Finding store
LG 38WN95C-W
Dell UltraSharp U4021QW
Comments
LG 38WN95C-W vs Dell UltraSharp U4021QW: Main Discussion
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