“How accurate is the HRM? I have a fitbit charge2 right now and its never even within 20 bpm of being right during workouts. Is this better? Also, how much does sweat impact the reading? How much does placement matter? The fitbit cant move at all.”

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• I found the HRM to be fairly accurate when comparing it to my chest HR monitor and blood pressure monitor. It does have to be snug around the wrist above the wrist bone.

  Answered by redd 8 years ago

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• The vívoactive HR reads the optical heart rate very accurately. Sweat is not known to interfere with readings of heart rate. ~JH

  Answered by GarminProductExpert 8 years ago

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