O2 sensor
Is there a way to calibrate my Blood Oxygen sensor on a Series 7 Watch? It produces readings wildly out of range from my finger pulse oximeter. I have a lung condition that results in my baseline of between 88-92% under normal activity. I'm getting readings of 94-97% from my watch. More concerning is that when my oxygen drops to below 85 (a cause for concern) my watch says its unable to get a reading or comes up with 92-94%. Before referring me to the standard page of how to use this app, suffice to say this isn't my first rodeo. I simply want to know if there is a way to calibrate the app? yes or no. The ECG is bang on. The O2 meter is not.