“does the garmin vivosmart 4 track low pulse rates during the night and day?”

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• The device reads optical heart rate as long as you are wearing the device. You can go to support.garmin.com for FAQ's and video's on Pulse OX. Debbie with Garmin

  Answered by GarminProductExpert 7 years ago

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• Unsure , but it does everything I need in my everyday lifestyle

  Answered by Thomas042021 7 years ago

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• Yes

  Answered by Andy 7 years ago

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