Color

Tablet-sized e-notes are great for when you feel the need to jot or doodle but don't want to waste paper. Fujitsu has been in the E Ink slate game since 2019, but its Quaderno models have so far been monochrome only. That's changed with the A4 3rd Gen.

With help from small tracking gadgets plus the ubiquitous smartphone, we can now keep tabs on our belongings – wherever they may be. Now a startup is crowdfunding a nifty tag that includes an E Ink screen to display contact details and photos in color.

For the past few years, we've seen a bunch of e-readers and e-notes featuring E Ink's Kaleido 3 technology. But if you thought that this color ePaper was limited to handheld devices, think again. E Ink has now shown off 75-inch outdoor displays.

Walls in many homes play host to art prints or family photos, but refreshing your collection can be a pain. Thanks to a nifty tap-to-print feature and color ePaper technology, the Reflection Frame updates imagery in seconds and is easy on the eyes.

Unlike cats, our vision is pretty rubbish in very low light conditions. Fortunately, technology can help us reveal the hidden secrets of the night. The Nightra is just such as gadget, and promises to reveal "every detail in vivid, full color."

Imagine having a picture on your wall that completely changes when the room gets too warm. Engineers at MIT have created a new printing technology called Thermochromorph to make full-color images that switch in response to temperature.

Color E Ink has been in the wild for a while now, and we've featured a number of reading and note-taking devices that use it. Amazon's popular Kindle range has so far stuck with shades of gray. That's changed with the launch of the Kindle Colorsoft.

Ordinarily, the 3D printing of multi-colored objects is a relatively complex and inefficient process. That could soon change, however, thanks to a clever new technique in which a temperature-sensitive print media gets "ironed" after being extruded.

Last year, Dasung launched what was claimed to be the world's first color E Ink monitor, which was available with curved or flat panels. Now the company has updated the formula for a new model boasting a super-fast (for E Ink) refresh rate of 33 Hz.

Duovox has followed its successful Kickstarter for a military-grade night-vision monocular with a Pro version that promises to bring the hidden darkness into "true full color." The nocturnal adventure gadget is also joined by a teeny smartphone camera.

Back in January, Yashica launched a pair of 4K color night-vision binoculars designed to bring color and clarity to otherwise darkened views. The company is following up with the Explorer, which not only features two eyepieces but also a pop-up screen.

Speaking a language with different words for different color shades means the brain perceives those shades quicker than using a language with only one word for that color, highlighting the interaction between language and perception according to a new study.