To add to this:

- Playdate (https://play.date) - fun little portable console with an rLCD screen

- Daylight (https://daylight.computer) rLCD paper-like tablet

- Envy (https://envynote.app) - Obsidian without the plugins, local only

- dumb phone (https://dumbphone.so) - make your iPhone dumber, on purpose

- xteink x4 pro (https://www.xteink.com/products/xteink-x4-pro-pocket-ereader) - great, small reader

hope people enjoy!