Dell UltraSharp U4025QW 39.7" Black, Silver, Dual Color 2024

Dell UltraSharp U4025QW 39.7" Black, Silver, Dual Color 2024

Dell
91 Overall Score
vs
KYY K5 15.6" 2025

KYY K5 15.6" 2025

KYY
58 Overall Score

What Buyers Say

Dell UltraSharp U4025QW 39.7" Black, Silver, Dual Color 2024

No customer feedback yet

KYY K5 15.6" 2025

78 out of 100 low confidence 6 reviews

The KYY 4K portable monitor receives mostly positive feedback for its sharp resolution, portability, and intuitive controls. Verified buyers praise its plug-and-play setup, included cables, and compatibility with both Windows and Mac. However, one unit arrived defective, and a detailed review notes that HDR performance is weak due to limited brightness. Overall, it is seen as a solid SDR monitor for on-the-go productivity.

Pros
  • Sharp 4K resolution
  • Plug-and-play setup
  • Portable and lightweight
  • Intuitive controls and menus
  • Includes multiple cables
Cons
  • Defective unit reported
  • Weak HDR performance
  • Limited brightness for HDR
  • Mushy control knob click
  • Small text at 4K on small screen
👍 Display quality 5
👍 Portability 4
👍 Ease of setup 4
👍 Build quality 3
👎 Hdr performance 2
👎 Defective unit 1

Scores

Office
Dell
100
KYY
54
Portable
Dell
16
KYY
91
Professional
Dell
84
KYY
61
Entertainment
Dell
82
KYY
49
Creative
Dell
79
KYY
61
Gaming
Dell
77
KYY
47

Specifications

Dell UltraSharp U4025QW 39.7"KYY K5 15.6"
Display
Size39.7"15.6"
Resolution5120 x 21603840 x 2160
Panel TypeIPSIPS
Aspect Ratio21:916:9
Curved✓—
Curvature2,500—
Screen Finishmatte—
Performance
Refresh Rate120 Hz★60 Hz
Response Time5 ms★—
Adaptive SyncAdaptive-Sync—
Color & HDR
Brightness600 nits★400 nits
Color GamutDCI-P3 99%, Display P3 99%, sRGB 100%, BT.709 100%100% sRGB
Color Depth10-bit★8-Bit
HDRDisplayHDR 600HDR
HDR SupportHDR600—
Connectivity
HDMI Ports1★—
DisplayPort1★—
USB-C3★2
ThunderboltThunderbolt 4—
Speakers✓✓
Headphone Jack✓★—
Ergonomics
Height Adjustable✓★—
Tilt✓★—
Swivel✓★—
Pivot✓★—
VESA Mount100x10075x75
Features
Webcam✗—
Touchscreen✗—
PIP/PBP✓★—
Power380W★—
Weight8.35 kg1.60 kg★

Pros & Cons

Dell UltraSharp U4025QW 39.7" Black, Silver, Dual Color 2024

  • Strong connectivity (99th percentile)99th %ile
  • Strong display (99th percentile)99th %ile
  • Strong color (98th percentile)98th %ile
  • Strong feature (96th percentile)96th %ile

KYY K5 15.6" 2025

  • Strong portability (95th percentile)95th %ile
  • Strong social proof (85th percentile)85th %ile
  • Strong display (84th percentile)84th %ile
  • Strong color (82nd percentile)82nd %ile
  • Below average performance (21st percentile)
  • Below average ergonomic (32nd percentile)

Verdict

★ Winner: Dell UltraSharp U4025QW 39.7"

Scores 91 overall, wins 5 of 6 usage categories and 14 of 31 specs.

Dell UltraSharp U4025QW 39.7" Better at:

GamingOfficeCreativeProfessionalEntertainment

KYY K5 15.6" Better at:

Portable