Activity Tracking: Recovery score, strain score, heart rate, active minutes, workout modes, calories, temperature, hydration, workouts. Alerts you to move if inactive.
Notifications: Displays calls and messages.
Water resistant: Yes

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