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, active minutes, workout modes, sleep and calories, GPS (Versa 4)
Music Control: Control music playback (Versa 2 and 4).
Notifications: Displays notifications from your phone.
Water resistant: Yes