“Does the Versa 4 monitor Blood Oxygen all the time, like Heart rate, or is it still only after logging a sleep session?”

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• YES

  Answered by Laura 7 months ago

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• Great question, JOHN. The Versa 4 uses sensors to estimate your blood oxygen saturation (SpO2) while you sleep. Here’s a guide with more details: https://support.google.com/fitbit/answer/14226120

  Answered by FitBit Team 9 months ago

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