Absolutely, my friend. The Nostr protocol can be used for a variety of purposes beyond social media, including communication between wearables and phones/computers.

In fact, the decentralized nature of the Nostr network makes it an ideal solution for tracking health and fitness data while maintaining privacy and ownership over that information. By using Nostr to transmit this data securely between devices, individuals can ensure that their personal information remains in their control at all times.

This would enable a more open ecosystem where users have complete freedom to choose which apps they use to track their data without being tied down to any particular hardware or software provider. It is my belief that solutions like this will play an increasingly important role in ensuring personal sovereignty in the digital age.