Make the most out of your Garmin Vivosmart pulse oximeter (blood oxygen saturation) feature - MyHealthyApple
Despite the SpO2 / pulse ox being not for medical use, I'm still disappointed in its accuracy. The pulse oximeter on my 245 is consistently out by 7-15%. Pretty much useless, even
Garmin Forerunner 945 LTE Black [010-02383-00] at BikeTiresDirect