@matigo Adjustable. You can have a range of settings going from slow refresh with high contrast and minimal ghosting to high refresh (enough to watch a video, sort of), low contrast, and lots of ghosting. There's a "clear" button to force a refresh when the ghosting gets too much.
For my daily use, I have it set to the second-slowest refresh rate. Most of what I do is in a text editor and spreadsheets.
Using eink as my daily driver has basically eliminated the headaches and dry eyes I used to get on a daily basis. I still have a 1080p monitor as a secondary display â a lot of websites won't display properly on eink due to ridiculously low contrast etc. â but my 4k 30" gets very little attention these days.
The dream would be to have a 30" 4kâ8k colour display in conjunction with a similarly sized eink display. Dasung does make a 25" eink display but it's pretty expensive, I might need to wait a few years to go down that route.