Isn’t e-paper the general category of low power displays? I understand that “e-ink” are a trademarked subset of the broader e-paper category, which also includes memory-in-pixel LCD displays which other watches like Garmin (and probably pebble) have. E-ink displays are only manufactured by eink corp, and are popularly found on e-readers, shelf price tags in some stores etc.
I may be mixing terms in my brain, though. Happy to be corrected.
> Isn’t e-paper the general category of low power displays?
Yes, or more precisely: reflective displays without backlight. There were many such display technologies a while ago (when the Kindle took off and various companies tried to compete with E Ink), but most have since been abandoned.
Pretty much all colored e-paper screens have much lower contrast than color printing on paper, since they mix colors by using can conventional RGB sub-pixels and darkening them individually, just like regular lit screens, which reduces the amount of reflected light.
I haven't really heard it being used like that, always heard e-paper being used as the specific e-ink displays and never anything else. The only time I've seen the (in my mind) confused messaging is on Pebble's own website, I still have my original Pebble Time somewhere, and that's a good part just down to how much I love those displays. I don't think I'd have used one for years if they were epaper.