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Dell UltraSharp 40 Curved Thunderbolt Hub Monitor (U4025QW) review

A 39.7-inch 5120 x 2160 IPS Black ultrawide with 120Hz and a Thunderbolt 4 hub that charges at up to 140W.

By the Comredix review desk · Updated November 14, 2026

Quality (40%)
9.5
Experience (25%)
9.2
Value (35%)
7.0

Dell UltraSharp U4025QW is the biggest productivity ultrawide on this list. Dell lists a 39.7-inch IPS Black panel at 5120 x 2160 and 120Hz, which gives 140 pixels per inch, so text looks closer to a 4K monitor than to a 3440 x 1440 ultrawide. Native contrast is 2,000:1, brightness is 450 nits with a 600 nit peak, and Dell lists VESA DisplayHDR 600 and 99% DCI-P3. The 2500R curve is gentler than the 34-inch models. The hub goes further than the U3425WE: the Thunderbolt 4 upstream port charges at up to 140W EPR, enough for large laptops, and the monitor adds 2.5GbE Ethernet, a KVM switch, a downstream Thunderbolt 4 port and two 9W speakers. The warranty is 3 years limited with Advanced Exchange Service. The cost is the drawback: Dell.com listed it at $1,749.99, down from $2,399.99, when we checked. We compared documented features and published prices only.

Who it is for

professionals who want the most workspace on one screen

Price

$1,749.99 at Dell.com (list $2,399.99).

Dell Price $1,749.99 Add to Cart
Quoted from the vendor pricing page on November 14, 2026.

Key features

  • 39.7-inch IPS Black panel at 5120 x 2160 and 120Hz with a 2500R curve
  • 140 pixels per inch, 2,000:1 native contrast and VESA DisplayHDR 600
  • Thunderbolt 4 upstream port with up to 140W EPR charging and a Thunderbolt 4 downstream port
  • 2.5GbE RJ45 Ethernet, a KVM switch and USB ports at 10Gbps
  • 99% DCI-P3 coverage and two 9W speakers

Strengths and weaknesses

  • Strength: Highest laptop charging on this list at up to 140W
  • Strength: 5120 x 2160 gives the most pixels of any IPS pick here
  • Strength: 3 year limited warranty with Advanced Exchange Service
  • Weakness: $1,749.99 is the highest price on this list
  • Weakness: 120Hz is well below the OLED gaming picks
  • Weakness: No webcam listed

Key facts

  • Price checked: $1,749.99
  • Size and resolution: 39.7 inch, 5120 x 2160 at 120Hz
  • Panel: IPS Black, 2,000:1 contrast, 2500R curve
  • Laptop charging: Up to 140W over Thunderbolt 4
  • Warranty: 3 years limited

Where it ranks

Dell UltraSharp 40 Curved Thunderbolt Hub Monitor (U4025QW) is No. 5 in our Best Ultrawide Monitors verdict.

Alternatives we scored

Visit dell.com · Questions or corrections: editorial@comredix.com