I bought an Apple Watch Series 5, because I wanted to measure my heart rate, passively, all the time (24/7).
However, I cannot find a way to enable the heart rate monitor, so that it's "on" by default.
Only by opening specific apps, like Pulse, I'm able to start the heart rate monitor, but as soon as I close that app, the monitor stops.
I know that Garmin Forerunner Fenix 5 monitors the heart rate all the time, without the any user-intervention, which is what I want to achieve on my Apple Watch Series 5. Is this possible?