If you’ve had a checkup, a medical professional may have clipped a device to your finger to measure your oxygen saturation (SpO2) and pulse. Until last year, that was my only experience with such ...
If you own a Fitbit Charge 3, Ionic, Versa, Versa Lite, or Versa 2, it's time to check the app for a new Estimated Oxygen Variation Graph. The graph will display your blood's oxygen level, using the ...