Wie gut eine Sportuhr die Sauerstoffsättigung misst - Galaxus
Garmin Forerunner 245 Test: Ausführlich und praxisnah [Updates] - fitnessmodern.de
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