SuuntoSync

This app has been developed using Claude Code! Recerse engineering of the Suunto whiteboard-protocal, analyzing BT HCI logs, and mitmproxy-logs from the official apps were done 100% by Claude. Also most of the code is written by Claude.
 

SuuntoSync allows you to connect your Suunto-watch (tested with 9 Baro and Race) to a SailfishOS-phone (tested with JP2026), load activities, sleep-data and daily activity from the phone, and upload them to Suunto-cloud (sports-tracker).

Application can also load the activities fromt the cloud to phone.

SuuntoPlus-apps/watch faces can also be added and removed from the phone.

There's a separate daemon, that handles notifications to the phone. Currently notification-daemon only works when the app is closed.

Source code is here: https://github.com/jarnose/harbour-suuntosync