
"I've tried several color e-readers and e-paper devices in my testing, and as I compare overall features and value, I've found myself impressed again and again with the value of Kobo's color e-readers. Whether that's the larger Kobo Libra Colour, our favorite all-around e-reader that can double as a digital notebook, or the affordable Kobo Clara Colour, you can't go wrong with Kobo's colorful devices."
"Kobo's two color e-readers, the Kobo Libra Colour and the Kobo Clara Colour, use E Ink Kaleido 3 technology to power their colorful screens. This technology has 16 levels of grayscale and 4,096 colors, allowing it to represent hues from your favorite books with ease. You'll see higher resolution for the black-and-white technology, since that's still the main base that color e-readers use; the lower-resolution colors are essentially a top-layer effect."
Color e-paper devices expand e-reader and digital notebook options by adding color to paperlike screens. They display book covers, illustrations, and colorful highlights, and some allow colored note-taking within digital notebooks. Kobo's color e-readers, including the Kobo Libra Colour and Kobo Clara Colour, use E Ink Kaleido 3 with 16 grayscale levels and 4,096 colors. Typical specs show about 150 pixels per inch for color layers and 300 pixels per inch for black-and-white layers, because color is a lower-resolution top layer over a higher-resolution grayscale base. Colors are somewhat muted compared with LCD screens but generally preserve perceived sharpness.
Read at WIRED
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