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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Accelerated Longevity Test
    3. Build Quality
    4. Ergonomics
    5. Stand
    6. Display
    7. Controls
    8. In The Box
    9. Back
    10. Borders
    11. Thickness
  5. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Brightness
    4. HDR Brightness
    5. Horizontal Viewing Angle
    6. Vertical Viewing Angle
    7. Gray Uniformity
    8. Black Uniformity
    9. Color Accuracy (Pre-Calibration)
    10. Color Accuracy (Post-Calibration)
    11. SDR Color Gamut
    12. SDR Color Volume
    13. HDR Color Gamut
    14. HDR Color Volume
    15. Image Retention
    16. Reflections
    17. Text Clarity
    18. Gradient
    19. Color Bleed
  6. Motion
    1. Refresh Rate
    2. Variable Refresh Rate (VRR)
    3. Response Time @ Max Refresh Rate
    4. Response Time @ 120Hz
    5. Response Time @ 60Hz
    6. Backlight Strobing (BFI)
    7. Image Flicker
  7. Inputs
    1. Input Lag
    2. Resolution And Size
    3. PS5 Compatibility
    4. Xbox Series X|S Compatibility
    5. Inputs Photos
    6. Video And Audio Ports
    7. USB
    8. macOS Compatibility
  8. Features
    1. Additional Features
    2. On-Screen Display (OSD)
    3. Controls
    4. In The Box
  9. Comments

Dell Alienware AW3821DW vs Dell UltraSharp U4021QW

Side-by-Side Comparison

Products

Dell Alienware AW3821DW
Dell UltraSharp U4021QW

Tested using Methodology v1.2

Updated Mar 06, 2024 09:26 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.1

Updated May 03, 2024 05:02 PM

SEE PRICE
Amazon.com
Dell Alienware AW3821DW Picture
Dell UltraSharp U4021QW Picture
Max Refresh Rate
144 Hz
Size
38"
Pixel Type
IPS
Variable Refresh Rate
Yes
HDR10
Yes
Native Resolution
3840 x 1600
Max Refresh Rate
60 Hz
Size
40"
Pixel Type
IPS
Variable Refresh Rate
No VRR
HDR10
No
Native Resolution
5120 x 2160

Variants

  • AW3821DW (38")
  • UltraSharp U4021QW (40")

Review

See Dell Alienware AW3821DW review

See Dell UltraSharp U4021QW review

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Our Verdict

Dell Alienware AW3821DW

Dell UltraSharp U4021QW

The Dell Alienware AW3821DW and the Dell UltraSharp U4021QW are both great for their intended purposes, with different advantages and disadvantages. They're both ultrawide monitors from Dell, but the Alienware is intended for gaming while the UltraSharp is meant for productivity. The Alienware has a high refresh rate, faster response times, and VRR support, while the UltraSharp offers a higher resolution, exceptional text clarity, and wider viewing angles.

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