Hello, we are trying to develop a Galaxy watch app that can read health data directly from the phone and sync with our own cloud server.
The very idea is - we do not want to develop a mobile app. Our users will use watch only and will not have mobiles.
Samsung Health is a proprietary program that reads and interprets sensor data on the watch. There is not public API for this at this time. You would have to be a Samsung Health Member in order to access such data. The partners services are not open for application at this time.
Bottom line is there should be a way to do this but only for partners and I’m not sure what level of partner this needs to be. If you open a support request they may be able to help or help you find a partner that will develop this for you.
Ron
Samsung Developer Program