Activity Tracking: Monitors steps, calories, distance, heart rate, sleep, GPS, blood oxygen, fall detection. Supports a variety of workouts like running, cycling, yoga and swimming.
Temperature Sensor: Added on Series 8 and 9
Notifications: Displays notifications from your phone.
Water Resistant: Yes

Activity Tracking: Steps, distance measurement, Calorie Burn Estimation, Active Time Tracking, History of walk summary
Goal Setting: Allows you to set daily step goals and track your progress.
Data Display: Shows real-time stats like steps, distance, and calories.
Sedentary Alerts: Reminds you to move if you've been inactive for a while.
Battery Life Indicator: Displays how much battery is left.
Water resistant: Yes