Heart Rate Stuck in Zone 1 During Interval Workouts

I’m experiencing an issue where my heart rate won’t go above Zone 1, even during high-intensity interval workouts. I’ve tried everything—checked my heart rate zones, reset them, disabled auto-detection, restarted the device, and even reinstalled the latest software update—but nothing has worked.

This started happening after a recent software update, so I’m wondering if it’s a bug. Has anyone else experienced this? At this point, I’m considering returning the device and switching back to my Apple Watch.

Any advice or fixes would be appreciated!

  • Garmin added a lot of new functions during the last few updates and the last 6 month we had a lot of software problems, a lot of bugs...

    If restart didnt helped, try this... first make a full backup of the watch ( settings / system / backup and restore / backup)....

    then do a "delete data and factory reset" ( settings / system / reset / delete data and factory reset)

    ... and then restore sistem from backup you made before.

    Hope this will help...