Suggestion: zoom for HR graph and other graphs on the watch during activity.
I tried looking at HR graph on my S9 during hill repeats today. Unfortunately the usefulness of the graph is limited because it shows only the last 5 minutes of HR or so. I can’t see multiple hill repeats or multiple intervals on it and compare peaks of HR.
I thought that it would be nice if I could change the scale on the watch during the run. That could be done the same way we change zoom level on navigation screen - hold the middle button until plus and minus labels appear next to up and down buttons, then use up down to change the time scale. At the same time it would be nice to have a label below that showed the current time scale for the graph. Once changed the scale should stick until the end of activity or until changed again.
I think this small improvement would make graphs much more useful.