With the GPS model, you can answer calls and answer messages from your wrist
Large Retina OLED display
Up to 2x faster processor than Series 3
Track your daily activities on the Apple Watch and see your trends in the fitness app on iPhone
Measure workouts such as running, hiking, cycling, yoga, swimming and dancing. Floatproof Design High and low heart rate alerts and irregular heart rhythm. Sync your favorite music, podcasts and audiobooks. Pay instantly and safely from your wrist with Apple Pay