the aw tracks your breathing and even tells you when there is a change in your average breaths per minute, no? I know its not quite what you mean but I believe it would may be possible to find out about a sleep apnea if you take a close look on your data.
for example the possibility to receive a specific training plan for running based on a simple AI. every 300 bucks huawei Watch does that. you tell it your aim (distance, time) and what your goal is either just a weekly fitness routine or to improve and train for a marathon or whatever and it catches some data from your first runs to calculate a plan with training and rest days you can absolve to reach that goal in a chosen time. how difficult can that be…
doesn’t it got that?! 😅🤣