Dell is showing off two new curved ultrawide monitors at CES. The 5K UltraSharp 40 Curved Thunderbolt Hub Monitor displays at 5120×2160 and is VESA DisplayHDR 600 certified. Starting at $2,400, the ultrawide is the world’s first 40-inch 5K monitor certified for five-star eye comfort, according to Dell. The company also introduced the UltraSharp 34 Curved Thunderbolt Hub Monitor with 3440×1440 WQHD resolution. In addition to eye comfort, both models feature IPS Black technology and single-cable Thunderbolt 4 connectivity (albeit at different rates with the 40-inch topping out at 140W versus 90W for the junior sibling, at $1,020).

Although a Dell blog post suggests the monitors are designed for imaging professionals — content creators, data scientists, engineers — “both monitors come with gaming-friendly 120Hz refresh rates,” The Verge points out.

It’s part of Dell’s larger objective to eliminate eyestrain, a goal also addressed with built-in ambient light sensors that automatically adjust brightness and color temperatures. The monitors both have five-star eye comfort certification from German testing organization TÜV Rheinland.

The UltraSharp 40 boasts 99 percent accuracy in the DCI-P3/Display P3 color space for color-critical tasks, says Dell, noting that users can calibrate screen colors using Dell Color Management software. Its LCD display is capable of peak brightness over 600 nits, The Verge reports, mentioning “support for variable refresh rates over its HDMI 2.1 connection.”

PetaPixel says it is worth pointing out that “this is not a full 5K resolution, which is 5,120 x 2,880, but instead 5K horizontal and 2K vertical.” Its 5,120 x 2,160 spec “is actually “a 4K UHD resolution extended in width by 33 percent, while 5,120 x 2,880, the most common ‘5K’ resolution, is double the resolution of QHD in both dimensions.” PetaPixel nonetheless concludes, “the new Dell display should deliver plenty of pixels.”

As for the 34-inch model, while it has many of the same features its spec sheet “doesn’t mention a DisplayHDR certification, nor support for variable refresh rates over HDMI,” writes The Verge.

Engadget notes the five star eye health certification is “a new industry standard,” explaining Dell did three things to achieve compliance: “First, it doubled the refresh rate to 120Hz for smoother visuals.” It also “incorporated an ambient light sensor, which allows the monitors to automatically adjust screen brightness and color temperature to match the light conditions.”

Specifically, Dell’s ComfortView Plus now reduces blue light exposures with more advanced LED backlight, “going from 50 percent exposure to less than 35 percent exposure,” Dell says, citing studies that show such steps “can reduce the frequency of eye fatigue signs by 7 percent to 17 percent.”