Excited to see a phone with e-ink screen! Thanks for the update.
I've been using the Dasung Paperlike - a full 16-inch e-ink computer monitor - for the last couple of years. Couldn't use a computer without it. This e-ink monitor, coupled with the Pomodoro technique (take a 5-min rest every 25 minutes) solved all my eye problems that came from too much computer usage.
I don't see any reason why all electronic screens can't be e-ink. There's no harm to the eyes when looking at it. The problems of color and refresh rate can be solved and there has been good progress on them already. The health benefits to the general public would be staggering (kids today have eye problems at 9-10 years of age due to lots of playing of computer games), And the power consumption would go down tremendously.
Nice recommendation. I think more products like Dasung's should be encouraged and promoted. Just to share, recently I've been feeling uncomfortable and couldn't do much thinking / writing. Changed my habits recently and they seem to be making life better:-
Dasung Paperlike with $1,399.00 it is still quite expensive. But the price might go down as it becomes more common.