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Where is the serial number on HRM-Tri?

einarge over 3 years ago

Can anyone share where the serial number on HRM-Tri (associated with 935 Forerunner) is?

0 sre92 over 3 years ago

0 2966763 over 3 years ago

Do you still have the box it came in? It should be printed on it

0 gaalx (UA) over 1 year ago

If not working, then most likely do not determine. I determined by making a screen in the watch settings.