Built-in cellular lets you receive calls, send texts, and check your email — even without your phone. You don’t have to raise your wrist or tap to see the time or important information. With the Always-On Retina display, your watch face is always visible. The viewing area stretches deep into the curved corners and is over 30% larger than the Apple Watch Series 3 display. Made for all the ways you exercise, Apple Watch Series 5 has built-in GPS and is swimproof. With the ECG app, you can take an ECG similar to a single-lead electrocardiogram right from your wrist. The optical heart sensor can monitor your heart rate and alert you to a high or low heart rate. You can store your favorite music, podcasts, and audiobooks on your watch. And stream it all — including the entire Apple Music catalog — even without your phone. A built-in compass and GPS enable precise navigation through Maps, while the altimeter tells you how high you go — great for outdoor workouts. Emergency SOS lets you call for help right from your wrist, even when you’re not near your phone. International emergency calling automatically connects you to local emergency services when you’re traveling abroad.