I ran into this thing someone built and is releasing kits for. It won't be near as smooth as PalmOS, but if you're into hacking a little bit, it might be worth looking at.
I've seen some other people hack together similarly devices. One was a Raspberry Pi 0 with a blackberry keyboard and a screen.
Anything off the shelf and even remotely polished these days is likely running Android, which seems like it would defeat the purpose.
The are Remarkable Move might be an option, if you're looking more for a notebook to organize everything, but if you want a Palm-like experience, that will also miss the mark.
You could try for an old Palm or Handspring device off eBay. It might be its own island, or getting in syncing could be a project.
You can run old Palm ROMS on smartphones. I tried it, but once the nostalgia wore off in 5 minutes I gave up on it. It also seems to defeat the purpose of what you're going for.
The further your use case strays from, “This is going to be a digital replacement for a paper notebook” the less satisfied you will be with your purchase of a Remarkable product.
Check out /r/remarkableTablet for everyone who convinced themselves they were buying an ebook reader or a device running standard Linux under the hood — essentially of them regret the purchase to varying degrees.
I have a ReMarkable tablet and it's pretty nice. It's large, yes, but you can get a keyboard and then it's a word processor and Linux terminal. Use emacs or ssh into a bigger machine. Plus it's just regular linux and you get root shell out of the box.
There are smaller devices in a similar vein, I hear good things about Kobo.
E-ink tablets are about the best thing I can think of here. Second best option is probably just an old Android device without a sim card.
To a first approximation nothing like that exists and while I understand philosophical commitment, from a getting shit done perspective, it is an unnecessary requirement.
For better or worse, that ship sailed long ago because it has no commercial viability.
Yes, it might make an interesting hobby project, but running any old phone might too.
I just got back from a trip with the Mudita Kompakt - not quite what you're describing, but close:
* 4.3" monochrome e-Ink display
* no web browser, no email client
* de-Googled Android; only way to load apps is via APK from a computer
* hardware switch to turn off all radios, for the privacy-concerned
The built-in software is still a work-in-progress (eg the music player hasn't got FOLDER support yet!) but you can find e-Ink-friendly apps on repos like F-Droid.
I ran into this thing someone built and is releasing kits for. It won't be near as smooth as PalmOS, but if you're into hacking a little bit, it might be worth looking at.
https://www.youtube.com/watch?v=VPQ2q7yVjZs
I've seen some other people hack together similarly devices. One was a Raspberry Pi 0 with a blackberry keyboard and a screen.
Anything off the shelf and even remotely polished these days is likely running Android, which seems like it would defeat the purpose.
The are Remarkable Move might be an option, if you're looking more for a notebook to organize everything, but if you want a Palm-like experience, that will also miss the mark.
You could try for an old Palm or Handspring device off eBay. It might be its own island, or getting in syncing could be a project.
You can run old Palm ROMS on smartphones. I tried it, but once the nostalgia wore off in 5 minutes I gave up on it. It also seems to defeat the purpose of what you're going for.
Currently it's very limited, but the BeTrusted Precursor is in the ballpark:
https://www.crowdsupply.com/sutajio-kosagi/precursor
I wrote a little about it today, as it happens:
https://www.theregister.com/2025/09/12/three_new_microkernel...
Remarkable devices runs standard Linux under the hood.
The further your use case strays from, “This is going to be a digital replacement for a paper notebook” the less satisfied you will be with your purchase of a Remarkable product.
Check out /r/remarkableTablet for everyone who convinced themselves they were buying an ebook reader or a device running standard Linux under the hood — essentially of them regret the purchase to varying degrees.
My use case is reading PDFs with a large number of complex figures and tables.
Not really their advertised use case, but works better than an ipad for me.
Boox Palma, or Minmal Phone, maybe?
This reviewer reviews e-ink devices: https://www.youtube.com/@ChalidRaqami
Best dumb phones 2025: https://www.youtube.com/watch?v=FwkLjrNMd3M
I have a ReMarkable tablet and it's pretty nice. It's large, yes, but you can get a keyboard and then it's a word processor and Linux terminal. Use emacs or ssh into a bigger machine. Plus it's just regular linux and you get root shell out of the box.
There are smaller devices in a similar vein, I hear good things about Kobo.
E-ink tablets are about the best thing I can think of here. Second best option is probably just an old Android device without a sim card.
device that runs open source software
To a first approximation nothing like that exists and while I understand philosophical commitment, from a getting shit done perspective, it is an unnecessary requirement.
For better or worse, that ship sailed long ago because it has no commercial viability.
Yes, it might make an interesting hobby project, but running any old phone might too.
Not exactly what you want, but I recently discovered my old Palm Pilot IIIe still works when I put batteries in it.
Portable music players might fill this niche if there was an OS which could support the hardware.
I just got back from a trip with the Mudita Kompakt - not quite what you're describing, but close:
* 4.3" monochrome e-Ink display
* no web browser, no email client
* de-Googled Android; only way to load apps is via APK from a computer
* hardware switch to turn off all radios, for the privacy-concerned
The built-in software is still a work-in-progress (eg the music player hasn't got FOLDER support yet!) but you can find e-Ink-friendly apps on repos like F-Droid.
Superbook has some neat eink devices.
Remarkable just came out with a small eink tablet that could kind of work.
PostmarketOS might run on some existing devices as well.
Used palm pilots are likely too if productivity apps are mostly what you're after.