In order to see these activities in the app, you’ll need a quick “warm-up” and then they will appear in the top of the list.
- Before starting a training session, open the Activity app in the Apple Watch
- Select Start Activity and select Other
- Start the activity and play for about 10 minutes
- Stop the activity and select Name this Activity
- Select Tennis
This allows the app to calibrate the calories consumption with this activity, since it is complex sport to estimate a “one size fits all”.
Next time you open the app, Tennis will appear in the top of the list. Quite tricky.