Hi
To credit progress towards your daily Exercise goal, the Activity app aims to identify activity that equals or exceeds the intensity of "a brisk walk". The definition of a brisk walk varies from person to person and depends upon your personal information.
To check that your personal information is accurate - and to update it over time:
- On your iPhone, in the Watch app, go to: My Watch tab > Health > Edit - tap and adjust items, then tap on Done.
In some circumstances - including during all treadmill-based walks and runs - the Activity app relies on your arm motion (measured by the built-in accelerometer) to track movement for the purpose of credited progress towards the Exercise goal. For the best results, allow the arm on which you are wearing your watch to swing naturally as you walk or run.
For outdoor activities, it may help to take your iPhone with you and to record walks and runs as workouts using the Workout app (ideally, turn on Location Services on your iPhone, so that GPS data is available to help your watch in estimating your pace).
Calibrating your watch also helps to improve the accuracy of various estimations (including Exercise credit) made by the Activity app and Workout app. More information and instructions for calibrating your watch are available via the link below.
If you still find it difficult to achieve Exercise credit, a workaround is to record activity using the Other category in the Workout app. This will always credit one minute towards the Exercise goal for each full minute of the workout's duration.
More information
- Calibrating your Apple Watch for improved Workout and Activity accuracy - Apple Support
- Use the Activity app on your Apple Watch - Apple Support
- Use the Workout app on your Apple Watch - Apple Support
If you have not yet done so, it may also help to update your iPhone and Apple Watch to the latest software versions. After updating from earlier software versions, some users reported increases in the proportion of their activity that was credited as Exercise.
- Update the iOS software on your iPhone, iPad, or iPod touch - Apple Support
- Update the software on your Apple Watch - Apple Support