I was doing a workout today, and my Forerunner 970 showed I had 0.07 miles left—then, just a second later, it said I was finished. It was bizarre. There’s no way I covered that distance in that time.

On top of that, the treadmill calibration is the worst I’ve seen. It feels wildly inaccurate, and I expected better from a high-end device like this.

To make matters worse, the watch is noticeably laggy and often resets when I use voice commands or interact with the phone assistant.

Lastly, I wore the watch for about five days, and it showed 50% battery remaining with an estimated five days left. Then, just a few hours later—with no workouts or change in usage—the battery suddenly dropped to 21%. I had to recharge after only five days, which is worse than what it suggests I could get with always-on display enabled. (For reference, I currently have it set to off with gesture mode)

I was doing a workout today, and my Forerunner 970 showed I had 0.07 miles left—then, just a second later, it said I was finished. It was bizarre. There’s no way I covered that distance in that time.

On top of that, the treadmill calibration is the worst I’ve seen. It feels wildly inaccurate, and I expected better from a high-end device like this.

To make matters worse, the watch is noticeably laggy and often resets when I use voice commands or interact with the phone assistant.

Lastly, I wore the watch for about five days, and it showed 50% battery remaining with an estimated five days left. Then, just a few hours later—with no workouts or change in usage—the battery suddenly dropped to 21%. I had to recharge after only five days, which is worse than what it suggests I could get with always-on display enabled. (For reference, I currently have it set to off with gesture mode)

Thank you for starting this thread. I was coming here to report exactly the same issues. I thought that the rebooting issues were associated with using the timer then it was the maps but in the last few days it has been happening almost at random. I have also noticed that when the reboot happens the watch does not transfer the heart rate data to the Connect App resulting in large gaps of missing HR data. However, the watch has the data so not sure why the HR data is not being transferred. This data loss is mirrored in the web too. Anyhow, I feel like a Garmin beta-tester. Coming from a 4 year-old Venu 2 which had none of these issues I feel that this is an expensive downgrade! These seems typical for early Garmin product releases, unfortunately.

With the 4th issue, have you tried downloading the activity data from the Garmin website and then view the HR data on the FIT file viewer website? See if the HR data is missing when displaying it there.