Kobo announces color e-readers

Original Article ↗ Hacker News Discussion ↗

Reception of Kobo’s Color E-Readers

  • Many are pleased a major vendor (and main Kindle competitor) is shipping affordable color e-readers (~€150), versus earlier niche devices around €400–700.
  • Several users trust Kobo’s reliability, warranty, and support more than smaller brands and are more willing to risk money on Kobo hardware.
  • Some are disappointed the first color Libra is only 7" and not 8–10.3", limiting its usefulness for PDFs, comics, and RPG books.
  • Others say they’re happy with existing monochrome Kobos and won’t switch until color quality and PPI no longer degrade text readability.

Color E-Ink Technology: Tradeoffs

  • The devices use E Ink Kaleido: essentially a B&W Carta panel with a passive color filter on top.
  • Tradeoffs discussed: darker screen, lower contrast, and reduced effective color resolution (~150 dpi color vs 300 dpi mono, with fewer effective color pixels).
  • Some users with Kaleido devices (PocketBook, Boox) report the darker screen is acceptable, often offset by using the frontlight more.
  • Refresh times for modern color panels are said to be “manageable” now, far from earlier 10–30s refreshes; some support limited video modes.
  • Other color technologies (E Ink Spectra 6, ACeP) promise full-gamut color but currently have very slow refresh and are mostly in signage, not consumer readers.

Use Cases: Who Benefits from Color

  • Stronger benefits: comics, magazines, color PDFs, technical diagrams, graphs, Lego manuals, highlighting, and tools like colorized reading aids.
  • Weaker benefits: pure prose reading, where some prefer maximum contrast and sharpness and see color as unnecessary or even a downgrade.
  • Several say any color at all helps distinguish datasets, system components, or annotation highlights, even if gamut is limited and colors look “pastel” or washed out.

Device Size, Form Factor, and Alternatives

  • Preferences split:
    • 6–7" for fiction and portability.
    • 10–13" e-ink (or large tablets) for textbooks, sheet music, journals, and complex PDFs.
  • Some wish for very large, high-refresh color e-ink for magazines and visually impaired readers using large print.
  • Others stick with iPads/AMOLED tablets for comics due to superior color and speed, accepting eye-strain tradeoffs.

Ecosystem, Openness, and Hacks

  • Kobo is praised for:
    • Easy sideloading via USB mass storage.
    • Good integration with Calibre (including web sync setups) and library services (Overdrive/Libby where available).
    • Pocket integration for reading saved web articles.
  • KOReader support is a major draw; on Kobo it can be installed without jailbreaking, often just by copying files and using launcher tools.
  • Some users bypass Kobo account setup via config edits or database tweaks, then freely use Wi-Fi. Newer firmware reportedly simplifies this.
  • PocketBook and Boox are cited as strong alternatives:
    • PocketBook: good KOReader integration as a normal app, better for huge local libraries that Kobo’s stock indexer struggles with.
    • Boox: full Android, install any reading app, but concerns about GPL compliance and more “tablet-like” complexity.

Other E-Ink Applications and Future Tech

  • Interest in using e-ink as wall dashboards, photo frames, signage, menus, and even license plates; some DIY with Inkplate boards or PostmarketOS on Kobos.
  • Desire for a calm, color e-ink smartphone or phone-sized reader; existing devices (Boox Palma, Hisense A9) partially address this, though full phones are rare.
  • Some argue e-ink devices feel overpriced vs tablets given similar SoCs/batteries but more limited displays; others counter with battery life, eye comfort, and distraction-free reading as key advantages.