Cardio and recovery
Apple Health
Also called Health app, HealthKit
Apple Health is the iPhone hub that stores workouts, steps, sleep and heart data from Apple Watch and compatible apps.
Workouts are stored as activity samples with type, duration and often distance and heart rate. Strength detail usually needs manual entry or a third-party app. Permissions are controlled in the Health app on iPhone.
Related terms
In our guides
- Apple Health workout tracker: keep Apple Watch workouts in one training log
- Biological aging and epigenetic clocks: what a 2026 Nature Medicine study says about diet and exercise
- Simple workout tracker: how to log a training day in ten seconds
- Coaching a small group: how to track clients' training scores in one place
General information, not medical advice.