My Fenix 5s updated last week and now it doesnt save the pulse data, it registers way to many intensity minutes and drains the battery much faster.

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  Garmin - Chris over 3 years ago in reply to 2113810 +1 verified

  Please try the following:

  Hard Reset: Hold down your top left power button until your watch shuts off then let go once off

  (Only if needed) Factory Master Reset:   How to Reset My Garmin Outdoor Watch

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