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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Stand
    3. Ergonomics
    4. Back
    5. Borders
    6. Thickness
    7. Build Quality
  5. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Horizontal Viewing Angle
    6. Vertical Viewing Angle
    7. Gray Uniformity
    8. Black Uniformity
    9. Pre Calibration
    10. Post Calibration
    11. SDR Color Gamut
    12. SDR Color Volume
    13. HDR Color Gamut
    14. HDR Color Volume
    15. Image Retention
    16. Gradient
    17. Color Bleed
    18. Reflections
    19. Text Clarity
  6. Motion
    1. Response Time @ Max Refresh Rate
    2. Response Time @ 60Hz
    3. Image Flicker
    4. Black Frame Insertion (BFI)
    5. Refresh Rate
  7. Inputs
    1. Input Lag
    2. Resolution And Size
    3. Inputs
    4. Total Inputs
  8. Features
    1. Additional Features
    2. On-Screen Display (OSD)
    3. Controls
    4. In The Box
  9. Comments

Dell UltraSharp U2520D vs Dell UltraSharp U2721DE

Side-by-Side Comparison

Products

Dell UltraSharp U2520D
Dell UltraSharp U2721DE

Tested using Methodology v1.1

Updated Jul 04, 2022 06:56 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.1

Updated Dec 14, 2023 04:44 PM

SEE PRICE
Amazon.com
Dell UltraSharp U2520D Picture
Dell UltraSharp U2721DE Picture

Variants

  • U2520D (25")
  • UltraSharp U2721DE (27")

Our Verdict

Dell UltraSharp U2520D

Dell UltraSharp U2721DE

The Dell UltraSharp U2520D is better than the Dell UltraSharp U2721DE. The U2520D supports HDR, it displays a wider SDR color gamut, has much better out-of-the-box color accuracy, and it has a quicker response time. The U2721DE handles reflections better and it has a wider vertical viewing angle.

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