I’m completing activities but the stop button doesn’t seem to work. Only started using yesterday. I’m hoping not to lose data by holding the blue button until it does a thing but this seems to be the only way to make the activity end before I’m then able to synch it. Is this a common issue?

The breaths per minute is not calculating correctly. I average 8-10 and as low as 4 when I am meditating and it is always 14-15

What does nov mean?
Is a low level good?