Sleep apnea - Sleep as Android

[1] T. Young, L. Evans, L. Finn, and M. Palta, “Estimation of the clinically diagnosed proportion of sleep apnea syndrome in middle-aged men and women.,” Sleep, vol. 20, no. 9, pp. 705–6, Sep. 1997.

This is a companion discussion topic for the original entry at

So…today for the first time, our of nowhere I get a message saying my respiratory analysis RDI = ~1. But I don’t have anything wearable to measure this. No oximeter or anything. Is this due to the updated app?

On 7/31 I too had an unexpected message… “Respiratory analysis RDI = ~3 (Normal)”
I don’t have a pulse oximeter so where did this come from?
Also - since I wear a CPAP nightly I’d been questioning the breathing rates that were intermittently being reported.
Unfortunately these errors have given me doubts about the app as a whole.

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Yes. My Garmin vivosmart 4 isn’t supported on its oximeter. Is it going by sound?