Do you know if fitness trackers with integrated pulse oximeters can detect sleep apnea?
My Apple Watch has an oximeter (I bought it before that feature was pulled in the US), and there's a "sleep apnea notifications" section in the "Health" app, but I'm not sure if the absence of notifications implies an absence of a problem.
Would sleep apnea always be visible as a lower blood oxygen level when sleeping, or can there be negative effects even without that?
My Apple Watch has an oximeter (I bought it before that feature was pulled in the US), and there's a "sleep apnea notifications" section in the "Health" app, but I'm not sure if the absence of notifications implies an absence of a problem.
Would sleep apnea always be visible as a lower blood oxygen level when sleeping, or can there be negative effects even without that?