If you’re not seeing WearOS data in Cardiogram: Open the WearOS app and verify that it is reading heartbeats properly....
If you notice your heart rate sampling intervals increase to 6 minutes, 30 minutes, and finally 2 hours in spite...
You can install a third-party app, like Sleep as Android, that will detect sleep duration and write that data to Google...
Open the Cardiogram app on your Android watch, swipe left twice, and you’ll see “Background measurements.” Here, you can adjust...
To disable background heart rate sampling on the WearOS app on versions 3.3.0 or above, visit the measurements settings page...