- Screen up to 30% larger than previous models - Thinner, lighter, and more comfortable design - Advanced health features with heart rate notifications - Vitals app to check overnight health data - Sleep tracking and respiratory rate monitoring - Workout app with advanced metrics and Activity rings - Water temperature sensor and depth gauge for water activities - Fast charge reaching 80% battery in about 30 minutes - Fall detection and crash detection features for emergencies - IP6X certified dust resistance and 50-meter water resistance - Compatible with Apple ecosystem devices and services