Hello Mary-Elisa,
Thank you for reaching out to Apple Support Communities.
We found some details that may help:
"Review your workout route and pace
- Open the Fitness app on your iPhone.
- Tap Summary, tap a workout, then tap the map thumbnail that appears below Map.
Route is available for outdoor walk, hiking, run, open water swim, or cycle workouts.
The colors found in your route indicate your pace, with green the fastest pace and red, the slowest.
To see the route you must turn on route tracking. You can turn on route tracking when you set up your Apple Watch, or at any time later:
- On your Apple Watch: Open the Settings app
, go to Privacy > Locations Services, tap Apple Watch Workout, then tap While Using the App. - On your iPhone: Go to Settings > Privacy > Location Services, tap Apple Watch Workout, then tap While Using the App."
More details can be found here: End and review your workout on Apple Watch
If you are still unsure about the icons, can you provide a few more details? How often do you see this key logo? Does it appear in the same place every time? Are you seeing this on your Apple Watch, iPhone, or both? Also, which watchOS and iOS versions are you currently using?
Cheers!