AsteroidOS 2.0 is here with a massive load of new features and support for many more watches.
Thank you to all contributors who made it possible!
Watch the visual demo: https://www.youtube.com/watch?v=U6FiQz0yACc
Read the announcement: https://asteroidos.org/news/2-0-release/
Enjoy the wrist-sized Linux ride!
I fully agree with you in wanting to keep your health telemetry private. I too baulked at smart watches for the same reasons. I hate the idea of such info being collected by any company.
I've found GadgetBridge paired with a cheap smartwatch to be a good solution for me. It let's you keep your telemetry local and provides a GUI for the info I want: steps, heart rate, activity, sleep, etc.
It sounds like they have some support for AsteroidOS already too. They also claim "As of the next Gadgetbridge release, it should have full support for AsteroidOS, and feature-parity with AsteroidOSSync."