I'm out of date. Does E-ink still have ~500ms latency of refreshing the screen? If so, that's the #1 reason I believed it wouldn't be successful when I used them 6 years ago.
No meaningful latency while writing unless you draw fast large figures while watching for lag.
Upsides: Feels like pencil on paper. With iPad Pro I keep going back to paper. With this... it’s paper.
Downsides: Mobile software clunky, doesn’t connect to all WiFi, hardware paging buttons should not have been on bottom.
The only other major issue is software stability especially when reading. I've had it hardlock while reading something, then have to wait for the battery to drain because it won't respond to any input, then once I have it back up it forgot where I left off so I lost progress. So for the time being it sits, though once a software update or 2 come out I'll try again.
I was blown away when I was able to write some technical specifications in emacs, render them to PDF and share them to the device, then go for a coffee and review my work. I can markup my documents, sync them back to my machine, etc.
I do wish the resolutions of the documents on my desktop were better. I've drafted presentations on the device while thinking. I vastly prefer paper for thinking. This device is perfect for that.
I just wish I could do more with it. I want to be able to hook up a cloud service to interpret my math hand-writing, run it on my theorem prover or checker, and return the results, etc.... much like what people were doing in Xerox Parc ages ago.
There's so much potential here.
[edit: Reviews I read said that the drawings are scalable vectors, but two posts below talk about poor resolution, so maybe not the right device for her]
It's not for everyone, but it might be an option for your wife to consider.
// Digital ink junkie since the Newton, currently own and use latest models of Wacom Cintiq, Surface, iPad, and Remarkable.
Seems like in this day and age, that's not too much to ask for.
What's keeping them from being more popular is the price, anything over a 1" e-ink display costs a literal arm and a leg.
Anything that needs to be browsed or flipped through, nope. Very few electronic versions are usable in this case, be they normal LCD screens or eInk.
https://www.aliexpress.com/item/400x300-4-2inch-E-Ink-displa...
And I don't know why everyone seems to think they aren't successful. Amazon sells a ton of Kindles. They're very successful.