Premium subscription

Limited offer: $9.99 FREE

Subscription benefits:

  • Receive exclusive deals
  • Receive promo codes for monitors and TVs
  • Be the first to read our premium content

As Amazon associates we earn from qualifying purchases.

Comparison between Dell UltraSharp U3818DW vs Dell U3421WE

General Info
Model Number Dell UltraSharp U3818DW Dell U3421WE
Price
Type Monitor Monitor
Year 2017 2020
Brand Dell Dell
Model Series UltraSharp
Model Number UltraSharp U3818DW U3421WE
Alias UltraSharp U3421WE
Display
Screen Size Class 38" (inches) 34" (inches)
Diagonal Size 37.5 in
95.3 cm
952.5 mm
3.13 ft
34.14 in
86.7 cm
867.2 mm
2.85 ft
Screen Width 34.63 in
88 cm
879.67 mm
2.89 ft
31.49 in
80 cm
799.8 mm
2.62 ft
Screen Height 14.43 in
36.7 cm
366.53 mm
1.2 ft
13.18 in
33.5 cm
334.8 mm
1.1 ft
Display Curvature 2300 1900
Display Manufacturer LG Display LG Display
Display Type AH-IPS AH-IPS
Display Bit Depth 10 bits 10 bits
Frame Rate Control No
Max Number of Colors 1073741824 1073741824
Bits 30 30
Screen Aspect Ratio 21:9
Screen Resolution 3840 x 1600 3440 x 1440
Screen Pixel Pitch 0.229 mm 0.233 mm
Screen Pixel Density 111 ppi 109 ppi
Screen-to-Body Ratio 90.89 %
Backlight Source W-LED W-LED
DCI P3 78.1% 95%
sRGB 99 % 99 %
Screen Brightness 350 cd/m² 300 cd/m²
Static Screen Contrast 1000 : 1 1000 : 1
Screen Horizontal Viewing Angle 178 ° 178 °
Screen Vertical Viewing Angle 178 ° 178 °
Screen Input Lag 25 ms
Display Minimum Response Time 5 ms 5 ms
Display Average Response Time 8 ms 8 ms
Display Maximum Response Time 20 ms
Display Coating Anti-glare/Matte (3H) Anti-glare/Matte (3H)
3D No No
Size, weight, color
Case Depth 2.19 in
5.6 cm
55.5 mm
0.18 ft
Case Weight 9.05 kg
20 lbs
7.52 kg
17 lbs
Case Width with Stand 35.2 in
89.4 cm
894 mm
2.93 ft
32.02 in
81.3 cm
813.3 mm
2.67 ft
Case Height with Stand 17.01 in
43.2 cm
432 mm
1.42 ft
15.46 in
39.3 cm
392.8 mm
1.29 ft
Case Depth with Stand 8.91 in
22.6 cm
226.4 mm
0.74 ft
9.35 in
23.7 cm
237.4 mm
0.78 ft
Case Weight with Stand 12.14 kg
27 lbs
11.87 kg
26 lbs
Case Color Black Platinum Silver
Hardware
Built-in Camera No No
Connectivity 2 x USB 3.0 (upstream)
2 x HDMI 2.0
1 x 3.5 mm Audio Out
1 x DisplayPort 1.2
4 x USB 3.0 (downstream)
1 x USB 3.0 (Type-C)
4 x USB 3.2 (Type-A; Gen 1; downstream; 5 Gbps)
1 x USB 3.2 (Type-B; Gen 1; upstream)
2 x HDMI 2.0
1 x 3.5 mm Audio Out
1 x DisplayPort 1.4
1 x Ethernet RJ45
1 x USB 3.1 (Type-C; upstream; 90W; DP Alt Mode)
1 x USB 3.1 (Type-C; downstream; 15W)
Audio
Audio Speakers 2 x 9W 2 x 5W
Features
Cool Features Picture-in-Picture
HDCP (High-bandwidth Digital Content Protection)
Picture-by-Picture
KVM Switch
Low Blue Light
Picture-in-Picture
Picture-by-Picture
ComfortView
Flicker-free technology
Extra Features Security lock slot Security lock slot
Ergonomics
Case Width 35.2 in
89.4 cm
894 mm
2.93 ft
32.02 in
81.3 cm
813.3 mm
2.67 ft
Case Height 15.62 in
39.7 cm
396.8 mm
1.3 ft
Vesa Mount Support Yes Yes
VESA Interface Standard Size 100 x 100 100 x 100
Removable VESA Stand Yes Yes
Height Adjustment Yes Yes
Height Adjustment Range 115 mm
11.5 cm
4.5276 in
0.3773 ft
150 mm
15 cm
5.9055 in
0.4921 ft
Landscape or Portrait Pivot Support No No
Left or Right Swivel Support Yes Yes
Left Swivel 30 ° 30 °
Right Swivel 30 ° 30 °
Forward and Backward Tilt Support Yes Yes
Forward Tilt 5 ° 5 °
Backward Tilt 21 ° 21 °
Frequency and Interpolation
Vertical Digital Frequency 60 Hz 60 Hz
Screen Interpolation Measurement Unit NULL
Accessories
Extras DisplayPort cable
Factory Calibration Report
HDMI cable
USB 3.0 upstream cable
USB Type-C cable
DisplayPort cable
HDMI cable
USB Type-A to Type-B cable
USB Type-C to Type-C cable
Certificates and Standards
Licenses CECP
CEL
ENERGY STAR
RoHS Compliant
TCO Certified Displays
Energy Star
EPEAT Gold
RoHS
TCO Certified Displays
TUV Rheinland Flicker Free Certified
TUV Rheinland Low Blue Light Certified
Usage and Storage Requirements
Safe Operating Temperature Level 0 °C - 40 °C
32 °F - 104 °F
0 °C - 40 °C
32 °F - 104 °F
Safe Operating Humidity Level 10 % - 80 % 10 % - 80 %
Internal Storage Temperature -20 °C - 60 °C
-4 °F - 140 °F
-20 °C - 60 °C
-4 °F - 140 °F
Internal Storage Humidity 5 % - 90 % 5 % - 90 %
Max Operating Altitude 5000 5000
Max Storage Altitude 12192 12192
Dell UltraSharp U3818DW Dell U3421WE