To use your Apple watch as a heart rate monitor in Vieta, you will need to pair your watch via HeartCast (a third-party app).
- Install HeartCast via the App Store for your Apple watch and iPhone/iPad
- Allow HeartCast access to Apple Health data and Bluetooth
- Start a workout on your watch and open the HeartCast app on your iPad/iPhone
- In HeartCast, start broadcasting data
- Launch Vieta and pair HeartCast as your heart rate source