Hi
In order 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. This requirement applies both during general daily wear and when recording workouts via the Workout app. It is possible that your exercise (whether recorded via the Workout app or just via the Activity app) did not meet this requirement for the full duration of your activity.
The definition of a brisk walk varies by person and depends on your personal information. To check that your personal information is accurate:
On your iPhone, in the Watch app, go to: My Watch (tab) > Health > Edit - tap and adjust items, then tap on Done.
To most accurately track an outdoor cycling workout, be sure to record it via the Workout app as an Outdoor Cycle workout. When cycling outdoors, if you also take your iPhone along (with Location Services and Bluetooth enabled), your watch can use GPS data from the iPhone when estimating distance and speed:
Use the Workout app on your Apple Watch - Apple Support
Calibrating your watch improves the accuracy of various activity-related estimations, including Exercise goal progress. It may help to reset your existing calibration data (if any). Instructions for how to reset this data - along with instructions for calibrating your watch - are available via the support article linked below.
If you would prefer to receive Exercise credit for the full duration of a workout, regardless of its intensity level, track it via the Workout app and choose Other as the activity type. This will credit one minute of Exercise for each full minute of the workout. Active calories will be estimated at a rate equivalent to a brisk walk or based on data recorded by the heart rate sensor, whichever is higher.
More information:
Use the Activity app on your Apple Watch - Apple Support
Calibrating your Apple Watch for improved Workout and Activity accuracy - Apple Support
Use the Workout app on your Apple Watch - Apple Support
