Casio had a watch in the mid 1980s that was smaller with calendar, contact, and notes...
What's really fun is you can still buy them brand new for not much money.
https://www.casio.com/us/watches/casio/databank/
I still think that Rex is neat for the time. Would have made an interesting ebook for Project Gutenberg back in the day. Lots of scrolling but you'd always have it with you if you got bored.
https://www.watchuseek.com/threads/history-of-casio-dbc-dbx-... gives a nice overview of many of the models and their features.
If the ones for sale now were as good as they were in the past or better I would probably get one, mainly for nostalgia.