Is it possible to use Androids Account Transfer API with a usual Android phone as source and a Wear OS smart watch as receiver? According to the documentation the setup has to look like this:
I want to sync my phone's accounts to my smart watch.
If your objective is to sync data from your Android phone to an android wear, I think Google Fit API will do the job.
Google Fit is an open ecosystem that allows developers to upload fitness data to a central repository where users can access their data from different devices and apps in one location:
- Fitness apps can store data from any wearable or sensor.
- Fitness apps can access data created by any app.
- User's fitness data is persisted when they upgrade their fitness devices.
Also, it was mentioned in the documentation that the least Android 2.3 (API level 9) and higher is supported.