Does anyone understand how does it work and what insights can we get from it?
Sometimes it looks like is "always on" but other times when I access it, it asks me to wait 30 seconds "keeping still", and sometimes gives me result "Check Watch Fit"...
Liking this widget but what does in mean when it goes blue and says rest!?
Those blue/rest segments indicate reduced activation levels in your body; when the parasympathetic portion of your autonomic nervous system is dominate.
Essentially, those are the times when your body is doing the vital work of restoring the resources you need to cope with life's many demands.
Among other things, they can provide insight into the restorative quality of your sleep.
Did not Think that optical could do HRV??? Not even all belt straps are capable of HRV, aren't this just an approximation?
The combination of optical sensor tech and analytics needed to makes sense of the data have improved substantially in the past few years.
It isn't quite apples to apples, but if you understand and account for the limitations, then there's certainly enough information to say something (if not everything, yet) using this data.
well, taking the stress level on the wrist: 9, then, making a hrv stresstest with the belt says 89. so what should i belive? is the stress widget just to inform about the current level, in realtion of the day? and the HRV stresstest is messuring the real HRV?
By the way. tried to finde out how firstbeat calculate this 'number/level'. Didn't get an answer... I would just like to know the variability...
The stress app and the HRV app seem uncorrelated. An HRV shows 49 and the stress app shows 11-25. One is low stress, one is moderate. One of them is wrong, and I bet on the stress app.
Do you have any idea why the value in stress widget is going up and down all the time, e.g. now it is pumping between 30 - 70? It takes about half a minute to e.g. increase from 30 to 70. Is the stress value average of these values or is widget showing wrong values?
