First in flight test of AppleWatch 8 blood oxygen sensor in my Cirrus SR22 G2. Epic fail!

I did a first quick test of my new Apple Watch Series 8 blood oxygen sensor in a Cirrus SR22 G2 flight from Madrid to Bragança (Portugal). Te result was not that good... basically as the watch needs you to be completely still and pretty tight to do a successful measure, it is not that convenient in flight.
Anyway... once properly tight and being a bit still, the readings seemed pretty reliable. I will keep having a finger blood sensor anyway... and probably two of them.