No idea, I have just posted something similar in another thread before I seen this:
I am currently running a Series 0 42mm Apple Watch and I have updated to the iOS 11 GM recently.
When I enter the "Health" app on my iPhone 6s Plus, I can see the options for recording Heart Rate, Resting Rate, Walking Average, Workout, Breathe and Elevated Heart Rate Notifications, however only my Heart Rate and Workout options appears to be populated.
Are these options a feature of later Apple Watches only or is there something that needs to be activated somewhere for this to start monitoring?
I also note that there is nowhere on the Health App for the Heart Rate Recovery setting demonstrated at the Keynote, is there something I am missing?
I am interested to know if this is a later model feature as I am running the 1st generation at the moment and would really like these new features as I monitor my health data on a daily basis.
No resting info for me either (running WatchOS 4). I have a feeling this is for Series 3 only. I will let you know next week when I receive my Series 3