Has anyone successfully used an Apple watch app to continuously record heart rate?
In other words I am looking for an app that will measure and record my heart rate every 1 min (or even more frequently) using an Apple watch for as long as I tell it to do so. And of course will provide me the data.
So far I can only find apps that will record that heart rate intermittently. And none of them can be configured to define the frequency of measurements.