Heart Rate and Step Sensor Broken?

In the last day or so, every once in a while when I check my Garmin's HR data, it'll jump up to 200 and then, everything from HR to body battery to stress will show "--". Now I know my heart rate isn't going up to 200.

Furthermore, on one of the occasions, my move bar cleaned instantly and it showed that I walked about 500 steps when I was hardly moving. I've restarted the device and the issue persists. I'm not sure how to reset the device while keeping all the setting changes I've made on there but if anyone has a similar issue, please let me know me know if you resolved it.

0 D.B. over 3 years ago

I thought I was the only one with that issue. There certainly is something off with the HR sensors. Mine is doing exactly the same, jumping to 140-150 and jumping back to 50-60 in a second. I found no solution but it seems the issue is less likely to occur if the watch is rebooted regularly.