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Why don't smart watches use USB-C to recharge?
(shkspr.mobi)
This is a most excellent place for technology news and articles.
Pebble isn't eink either. The B&W models use Sharps transflective memory LCDs - part number LS013B7DH01 - and the colour models ones from JDI.
Epaper is what you are confusing it with, but that's the overall display category. That is the term Pebble used themselves also.