The DELL U4025QW 100.85 cm (39.7") IPS, 600 cd/m ² , 5 ms, 120 Hz, 21:9, HDMI, DP, USB-C 90W, gray monitor is an extremely powerful curved monitor designed for business users, demanding gamers, and anyone who wants an expanded work or gaming experience without compromise. Its ultra-wide diagonal, advanced IPS panel, and superior brightness provide a panoramic view and superior image quality, which is beneficial for both work and entertainment.

Evaluation of key product features

The monitor is ideal for those who need a large work surface, easy switching between devices and exceptional image quality – whether for complex multi-programming, financial analysis, creative work or immersive gaming. With a built-in 140W docking station, USB-C connectivity and an ultra-wide 21:9 aspect ratio, it is particularly suitable for modern work environments where efficiency and ergonomics matter.

WUHD (5120 x 2160) resolution on a nearly 40-inch curved IPS display delivers superior image sharpness and simultaneous display of multiple sources without the need for multiple monitors. The curvature of the display combined with high brightness (600 cd/ ^m2 ) creates an exceptional spatial experience, reducing eye movement and improving productivity, while maintaining natural colors and wide viewing angles thanks to IPS technology.

The monitor boasts advanced connectors: HDMI, DisplayPort and an advanced USB-C connection with a power delivery capacity of up to 90 W, allowing simultaneous transmission of image, audio, data and power. The built-in docking station makes it much easier to connect laptops and additional devices without unnecessary cables.

In addition to its high technical performance, this model offers an exceptional 120Hz refresh rate for smooth images in fast-paced action and reliable response times. With a spacious, curved surface and advanced connectivity, it stands out as the partner of choice in professional environments and impresses demanding users who expect more - from work to entertainment.

Same summary

The DELL U4025QW monitor is intended primarily for demanding business users and advanced consumers who often work with multiple open windows or complex applications. Its large ultra-wide diagonal and high resolution enable excellent visibility and multitasking on a single screen, which is especially useful for data analysis, document editing and creative projects. Due to the curved screen, it is recommended for work environments with a suitably deep desk and where the user benefits most from a wide display - e.g. when programming, designing or editing timelines. The model is not an optimal choice for work surface constraints, so it may become less practical in very small spaces or in typical home use, where a compact layout is a priority. Another advantage is rich connectivity with modern connectors and a single cable ecosystem for power and image transfer, but for some older laptops, check the compatibility of the USB-C or Thunderbolt connector.

Taken from: Enaa guides and team experiences.

User view

Typical users of this monitor are business professionals, analysts, developers, as well as more demanding creators who want to follow multiple content at once on one screen or efficiently manage programs with wide toolbars. Due to the 21:9 ratio and large work area, it is often chosen by those who manage large spreadsheets, lead meetings while taking notes in parallel, or are involved in multimedia projects where spatial width is above the standard. You can read more about the advantages of choosing large or ultrawide monitors in the guide How to choose a monitor size and which one to buy .

Users also repeatedly choose Dell products due to their reliability, panel quality, and broad support in the business environment.

Why buy at Enaa

At Enaa, you can help yourself before you buy with extensive expert guides and comparisons that make it easier for you to decide on the most suitable monitor for your needs. We are equipped with extensive experience in advising companies and individuals on choosing optimal computing solutions, which enables a more informed purchasing experience.

Answers to frequently asked questions

Is the monitor suitable for working with multiple windows or applications open at the same time?

Yes, thanks to the ultra-wide screen and high resolution, you can view multiple programs, documents, or data sources simultaneously on this monitor without the need for an additional display.

What size desk is recommended for such a large monitor?

To use a 40-inch curved monitor, we recommend a desk that is deep and wide enough to provide the appropriate distance for comfortable viewing and an optimal experience.

Is this monitor also suitable for gaming?

The monitor offers a high refresh rate and fast response time, so it may be suitable for casual gaming, especially games that take advantage of wide viewing angles. For competitive eSports, even higher frequencies or faster response times may be a priority.

What should I pay attention to when connecting a laptop via USB-C or Thunderbolt?

Before connecting, make sure your laptop supports video output via USB-C (DisplayPort Alt Mode or Thunderbolt) to take full advantage of power and video transfer over a single cable. For more information, see our guide to effective monitor placement .

What is the advantage of an ultrawide screen ratio compared to traditional monitors?

The ultra-wide 21:9 aspect ratio allows for greater visibility of content, easier window arrangement, and a better multitasking experience, which is especially useful in analytical, administrative, or creative environments.

Description updated: March 2026