Color readers still look like a compromise: Kaleido 3 is dim, text on the color layer is darker and grainier than on black-and-white paper, and the color premium is not worth it if you read ordinary books. E Ink answers with Kaleido 4 — brighter than its predecessor, “sharper”, with less obvious grain.
What the spec promises
More than 40,000 colors — twice the last generation. Higher refresh, white reflectance up 15%, contrast up 50%. Video up to 18 frames a second. For cinema that is still torture; for e-paper it is a step worth naming. If text on a color panel finally matches monochrome, the main argument for “just buy a Kindle” falls away.
The first Kaleido 4 device is Hanvon’s M10 C II tablet, sold in China. This month’s Kindle Colorsoft is still on the old generation: Amazon’s cycle is long. Kobo and Boox, aimed at a wider market, are quiet for now.
Who actually needs this
Color on a reader is justified for comics, textbooks and magazines, not a wall of detective prose. A tablet is still better for color and worse for eyes in the sun. Kaleido 4 has a chance to narrow that gap only if it does not repeat Kaleido 3 in the hand: a pretty press release and a grey page.
How to look at it
This is a panel announcement, not a shop shelf. Wait for independent brightness and black-text readings, not a preorder of Chinese Hanvon “to be first”. If next season Kaleido 4 shows up on Kobo or Boox at a sane premium, a color reader stops being a niche toy.
