This is eink while Pixel Qi was transflective LCD what is sometimes called e-paper. Transflective displays are used for some smartwatches, Garmin ones have long battery life with them.

> This is eink while Pixel Qi was transflective LCD what is sometimes called e-paper.

Although “e-paper” has been used to describe transflective LCDs at times, in my experience it’s far more commonly used to describe e-ink panels, especially larger ones.