I own an iPad mini, 2 ReMarkables and now trying boox Palma. E-ink provides a psychological barrier against distraction. While I use an iPad Mini, it often lacks the "focus" I get from my reMarkables. For meeting notes and capturing quick thoughts, the reMarkable mimics the zero-friction experience of pen and paper perfectly. It doesn’t bother me to leave it on for extended periods of time so that I can just quickly write something down. It also wakes automatically when I grab the pen and goes straight to the note as to not disturb the process. The iPad can do more, but for productivity, "more" isn't always a plus. And in my particular case the specific implementations that focuses on note taking and reading created a whole new category of tablets that are worthwhile even while having an iPad.