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Dell’s new 6K UltraSharp refuses to sacrifice pixel density for size

The CES 2025 logo.
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At CES 2023, Dell introduced a new 32-inch monitor that doesn’t sacrifice pixel density for size.

As the name implies, the Dell UltraSharp 32 6K Monitor (U3224KB) has a resolution of 6144 x 3456 and a 31.5-inch screen size — and those aren’t just random numbers. That matches the pixel density of sharper, smaller screens, like the one you’ll find on a high-end laptop.

 

The larger your screen, the more those individual pixels are stretched out, which reduces the visible sharpness of a screen. A traditional 32-inch 4K monitor has a pixel density of just 129 ppi (pixels per inch), which is less pixel-dense than a 13.3-inch laptop screen with a 1080p resolution.

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In comparison, the UltraSharp 6K hits 223 ppi, which is among the sharpest screens you can get at this screen size. It also matches the resolution of the 6K Pro Display XDR from Apple, which I’m sure is no coincidence. That also means it’s sharper than 5K displays like Apple’s Studio Display and Samsung’s recently announced Viewfinity 5K display.

The Dell UltraSharp 6K monitor connected to a laptop on a desk.
Image used with permission by copyright holder

Rather than opt for more advanced panel technology like OLED or mini-LED, the UltraSharp 32 6K uses an improved version of IPS known as IPS Black. Dell claims this monitor 1.4x better contrast, 41% deeper blacks, and 1.2x more accurate colors. The technology is a collaboration between Dell and LG (the manufacturer of the panel itself) — and so far, we’ve only tested it on one other unit, the UltraSharp 32 4K USB-C Hub Monitor U3223QE.

The 4K webcam housed above the Dell UltraSharp 6K monitor.
Dell

The UltraSharp 32 6K Monitor is more than just a sharp screen though. It also has a built-in 4K webcam, which also features a larger second-generation Sony Starvis CMOS (complementary metal oxide semiconductor) sensor. The extra large housing is located above the display alongside the speaker grille, where the two 12-watt speakers are located. Admittedly, it remains a bit of an odd look. Dell featured this design in its UltraSharp U3223QZ from last year, but this time the webcam and top bezel are even larger.

The webcam is branded as being “intelligent,” meaning it comes with features like auto framing, light adjustments, enhanced clarity, an automatic shutter, and an echo-canceling mic. It also both records and plays back video at 4K at 30 frames per second (fps), or 1080p at either 30 fps or 60 fps. The housing can tilt the camera by up to 20 degrees and the field of view can be set to 65 degrees, 78 degrees, or 90 degrees.

The flip-down ports under the Dell UltraSharp 6K monitor.
Image used with permission by copyright holder

Possibly my favorite addition to the monitor is the flip-down forward-facing USB ports along the left bottom of the frame. They’re super convenient when you need them, and totally disappear when you don’t. That’s one feature I wish more monitors would adopt.

  UltraSharp 6K U3224KB specs UltraSharp U3423WE specs UltraSharp U4323QE specs
Size 31.5 inches 34.1 inches 42.5 inches
Resolution 6144 x 3456 (223 ppi) 3440 x 1440 (109 ppi) 3840 x 2160 (103 ppi)
Aspect ratio 16:9 16:9 21:9
Refresh rate 60Hz 60Hz 60Hz
Panel type IPS Black, LED IPS Black, LED IPS
Ports
  • 3 HDMI 2.1
  • mini DisplayPort 2.1
  • Thunderbolt 4 downstream
  • USB-C upstream
  • Thunderbolt™ 4 (140W PD)
  • 3 USB-A 9 RJ45 10USB-C (15W PD, super speed 10Gbps)
  • USB-A (BC 1.2 with power charging, super speed 10Gbps)
  • 1x DisplayPort version 1.4
  • 2x HDMI 2.1
  • 1 x USB-C upstream port (video and data) (Alternate mode with DisplayPort 1.4, Power Delivery PD up to 90W)
  • 1x USB-C upstream port (data only, 10Gbps USB 3.2 Gen2)
  • 4x USB-A 3.2 Gen2 downstream port, 1x super speed USB-C 3.2 Gen2 downstream port with 15w charging
  • 1x USB-A 3.2 Gen2 with BC1.2 charging 10Gbps
  • 1x Audio line-out
  • 1x RJ45 Ethernet
  • 2x DP 1.4
  • 2x HDMI 2.1
  • 1x USB-C (DP.14 HB3 (2lane)/ HBR2 (4 Lane), Power Delivery up to 90W, 2/4 lane switching),
  • USB 3.2 Gen 2 10Gbps) upstream
  • 3x USB-C (USB 3.2 Gen2, 10Gbps KVM) Upstream port, Data Only
  • 3x USB-A 3.2 Gen2 downstream
  • 1x USB-A 3.2 Gen2 with B.C 1.2
  • 1x USB-C 3.2 Gen2 with 15W charging
  • 1x Analog 2.0 audio line out
  • 1x RJ45 Ethernet
Color gamut sRGB 100% sRGB 98% sRGB 95%
Brightness n/a 300 nits 350 nits
Contrast 2,000:1 2,000:1 1,000:1
HDR DisplayHDR 600 DisplayHDR 600 No
Speakers 2x 14-watt speakers 2x 5-watt speakers 2x 8-watt speakers

Dell has also announced two larger monitors, the UltraSharp 34 Curved USB-C Hub Monitor (U3423WE) and UltraSharp 43 4K USB-C Hub Monitor (U4323QE). The U3423WE brings the same IPS Black technology to the ultrawide aspect ratio, while the U4323QE’s unique feature is its ability to connect up to four different PCs and view all four inputs simultaneously or switch between them with a KVM.

The Dell UltraSharp 32 6K Monitor (U3224KB) will be available sometime in the first half of 2023. The Dell UltraSharp 34 Curved USB-C Hub Monitor (U3423WE) and Dell UltraSharp 43 4K USB-C Hub Monitor (U4323QE), on the other hand, will be available on January 31.

Luke Larsen
Senior Editor, Computing
Luke Larsen is the Senior Editor of Computing, managing all content covering laptops, monitors, PC hardware, Macs, and more.
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