Dell UltraSharp U4919DW Monitor Review: Two 27-inch QHD Screens in One

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Viewing Angles, Uniformity, Response and Lag

Viewing Angles

The U4919DW offers decent viewing angles on par with other premium IPS panels. Its gentle curvature means you can sit anywhere in front of it and see a bright image without any color shift. You can share the U4919DW with another user if both parties sit within the panel’s edges, which isn’t too difficult given its 4-foot width.

From the top, though, detail was largely washed out with a 60 percent reduction in light output. Once we got off axis by more than 45 degrees, things turned blue and brightness dropped by 40 percent.

Screen Uniformity

To learn how we measure screen uniformity, click here.

Only one monitor has posted a lower black uniformity score than the U4919DW, NEC’s ultra-premium (and expensive) PA243W, which we reviewed last year. This helps boost its intra-image contrast and ensures there is no bleed or glow in dark content. Our black field pattern showed no visible issues whatsoever. It doesn’t get much better than this.

Pixel Response and Input Lag

To read up on our pixel response and input lag testing procedures, click here.

Though the U4919DW draws the screen at an average rate for a 60Hz monitor, it has lower total lag than most other displays sporting that refresh rate. While it won’t suffice for hardcore competitive fragging, it’s fine for most players with average reflexes and skills. We certainly had no problem storming the Normandy beach in Call of Duty: WWII. Control inputs were seamlessly linked to on-screen movement. Though there are more-capable gaming monitors here, the Dell’s extra resolution makes it a compelling alternative to the Samsung mega-wide.

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Christian Eberle
Contributing Editor

Christian Eberle is a Contributing Editor for Tom's Hardware US. He's a veteran reviewer of A/V equipment, specializing in monitors. Christian began his obsession with tech when he built his first PC in 1991, a 286 running DOS 3.0 at a blazing 12MHz. In 2006, he undertook training from the Imaging Science Foundation in video calibration and testing and thus started a passion for precise imaging that persists to this day. He is also a professional musician with a degree from the New England Conservatory as a classical bassoonist which he used to good effect as a performer with the West Point Army Band from 1987 to 2013. He enjoys watching movies and listening to high-end audio in his custom-built home theater and can be seen riding trails near his home on a race-ready ICE VTX recumbent trike. Christian enjoys the endless summer in Florida where he lives with his wife and Chihuahua and plays with orchestras around the state.