Yeah, software support tends to be pretty bad for their devices, with few updates, and they are often bad with posting kernel source for their devices, so hard to get custom roms or flash alternative OS’s on them too. But if you want a phone that has a battery that can last 3 days straight - they are indeed available for purchase

Unihertz and Oukitel both make “rugged” phone models with giant batteries - aimed at weekend campers with giant hands. And Fairphone and Volla both have phones that still allow for easy battery swapping.

Geddit also works well as an open source, no-account needed, Reddit browser - https://f-droid.org/packages/geddit.buzl.uk/

Dalton is an amazing and very cool guy, and when he left it was indeed a big hit to dev speed at first, but recently a few super smart and dedicated guys have been able to do a big jump in updating the base from 16.04 to 20.04 (which involved moving from upstart to systemd) and they are getting close to rebasing to 24.04 (target for this is this June in fact). Plus Waydroid support has gotten really good in the time since Dalton moved on, and snap support is getting worked on now as well.

I am talking about VoLTE (Voice over LTE) which is the protocol just for making phone calls over 4g networks - NOT 4g/LTE mobile data! Ubuntu Touch has worked well with 4g/LTE mobile data for 10 years now.

Between October 2018 to April 2023 I used as my daily drivers a series of phones (OnePlus One, Meizu Pro 5, Volla Phone, Xiaomi Redmi Note 9 Pro) all flashed to running Ubuntu Touch. During this time UT (Ubuntu Touch) was less developed than it is now, in that Waydroid (which allows using some Android apps over a Lineage OS container that boots on top of UT) did not yet exist, and Libertine (which allows some Linux desktop apps built for Ubuntu arm64 deb to be installed) was not as functional. And yet is still worked great for my modest needs (e.g. I don’t do banking, or any kind of more advanced gaming, on my phones).

The reason I reverted last year to de-googled Android (“vanilla” Bliss ROM on a Xiaomi Redmi Note 10 Pro) is that being in the USA, the carriers here have closed or are closing down all their 3G/2G networks, and requiring VoLTE for phone calls. While UT supports LTE for mobile data without a problem, given that VoLTE is a proprietary closed protocol with implementation varying between carrier, oem and device, the only device which UT currently has VoLTE support for (and which is still shaky) is the PinePhone Pro.

Anyhoo - the UT dev community is pretty small, but definitely dedicated, and still offers some promise into the future for a nice privacy respecting alternative OS for mobile devices and tablets. Hopefully at some point VoLTE, and a few other issues gets figured out for it so I can return to using it for my daily driver - in the meantime I’ve got it on a OnePlus 5t as a secondary device, and on a Lenovo x306f 10" tablet.