Unsure if this is available in WearOS 3 as I haven't received the update yet. But in the current version, it would be very handy to use an external HR monitor(chest straps/forearm straps) and link it in the app as getting HR reads from the watch (wrist) is inaccurate in most WearOS watches and the problem worsens as the intervals shorten. The native google fit app of them allows to connect to the external HR monitor, but obviously this app misses all the goodness that comes from Strava, it would be great to have this option on the strava WearOS app