1. Head on out
Launching the Strava app on your Apple Watch brings up a cycle or run button, depending on your iOS preference.
As long as you've also opened the app on an iPhone that you take with you then the app records GPS location data as you complete the session.
Pressing the bicycle initiates the timer on your iPhone while your watch continues to display a live data feed of your progress.
2. Heart monitor
Sadly, Apple has yet to grant third-party developers access to the heartrate monitoring technology built into the Apple Watch, so recording this information with the Strava app requires you to use a separate dedicated heart-rate patch.
Also, it's worth turning off the Watch's wrist detection in the General Settings so that it doesn't stop when your hands are resting on the handlebars.
3. Check the stats
On the right-hand side of the Strava in-session display you can see your average miles per hour. On the left is your actual distance. The large digits show the time elapsed of your current session.
We found inconsistencies between the data shown on the Watch display and on our iPhone screen, so maybe take the data accuracy with a pinch of salt – at least with this first version of the app.