I have an Oura ring but never really check the app since I’m not sure I believe a lot of the conclusions it gives me. I mainly just want a bunch of time series of signals measured from my body so after a year or two I can throw all that data (plus my own recorded notes like my weight and what I eat) into some some multivariate forecasting system to tease out predictive relationships. I don’t actually care what the signals themselves “are”.

The main problem is that a lot of the time series presented to the users of wearable products are lossy transforms of the original signals I want, so I have to use all the random projects on GitHub to try to access the raw data directly.