Activity Tracking: Steps, heart rate, activity score, sleep, body composition, calories tracking, readiness score, temperature, movement
Notifications: Alerts for calls and messages (with a paired device)
Water resistant: Yes

Activity Tracking: Steps, heart rate, calories, sleep, fitness modes. Provides health data and trends through the Withings app.
ECG Functionality: Measures electrocardiograms to assess heart health.
Water resistant: Yes