It's kind of wasted update. The calendar view is useless as it does absolutely nothing. Why not:
A) if you tap on day it scrolls to that day?
B) color coding the circles (maybe stacking them) just to recognize basic activities (run, bike or hike etc.) so user instantly knows what activities had been done on that day? I know Suunto app and Strava do it and I don't think it's patented solution.
C) filtering (seriously, it's just one drop-down field needed) to select activity to see so user could see days of cycling or running. Users have been asking for some sort of sports filtering for many years, why not do it now with the new graphs?
For now, half a screen is taken by non-interactive UI which serves no purpose. It's another half-baked update designed by people who clearly have no idea about using watches for sports tracking (why don't you do it like [different_company]? Asking users via poll in the app before coding anything? This is how they make UI related decisions and IMO it's brilliant).
