Yes, but only if it syncs via mesh to my home server and never sends data anywhere else.
Obviously, the algos and reporting dashboards will need to be run locally too. 😉
https://www.ultrahuman.com and other smart rings are nice but they all cost $300
+ USD
If I tell you that I will manufacture < $100 alternatives that
1. Accept sats
2. Login with Nostr
3. Have real jewelry
Will you buy it?
Discussion
What is a mesh? Are you telling me that you are not currently using any smart band/watch?