After the update the new function worked only one night. In the following nights I get the message that: no data... to get data keep the heart rate option turned on during sleep.
According to the instructions, I turned on the pulse oximeter for the night. However, I go to sleep later than the sleep schedule.
Could that be the reason for the issue?
All other sleep data, including oxygen saturation, is in the sleep report.
Hello. I am sorry to hear you are having trouble with this. To get Breathing Variations during sleep, ensure the following:
Since I installed the new beta firmware I'm getting breathing variations consistently and also there's a fix in breathing variations graph on the watch.
Yea, got that one. But how is the graph in GC in case data is collected, but no variations found
I tried yesterday the new firmware 22.03 which highly likely stable version as my ECG stayed activated.
Finally I got breathing variations and graph on the watch .
Since I installed the new beta firmware I'm getting breathing variations consistently
That's what I hoped for since I think that the underlying problem is a minor one. I tested the system on 21.19 against a professional sleep monitor and found that the message "no data" seemingly indicating an error in measurement always came up after a night with no breath variations at all. If there were any if even very few there was a result like "minimal" shown. The result - if shown - matched the findings of the professional sleep monitor which is impressive.
So the feature was already working, the remaining task was to determine whether there is no data b/o a measurement error or just b/o no variations were there. I think that's one of the easier bugs to fix and since I know now I already consider it working.
Those of you with the most error messages, you are probably the most healthiest. 
