From today, my fenix6 pro stopped showing heart rate and I can’t connect to my iPhone anymore
You'll want to follow these steps to connect the watch back to your iPhone: Garmin Connect App Bluetooth Troubleshooting
As far as the wrist heart rate, have you tried power cycling the watch? This can be done by pressing and holding the top-left button for 30-seconds.
If you continue to experience the above disruptions, we'd suggest reaching out to your local Garmin Support team.
