Key feature bullets: GPS model lets you take calls and reply to texts from your wristUp to 2x faster processor than Series 3Track your daily activity on Apple Watch and see your trends in the Fitness app on iPhoneSwimproof design1Sync your favorite music, podcasts, and audiobooksPay instantly and securely from your wrist with Apple PayBuilt-in compass and real-time elevation readingswatchOS 7 with sleep tracking, cycling directions, updates to Siri, and new customizable watch faces100% recycled aluminum cases available in three finishes