展开GPS model lets you take calls and reply to texts from your wrist Measure your blood oxygen with an all-new sensor and app 1 Check your heart rhythm with the ECG app 2 The Always-On Retina display is 2.5x brighter outdoors when your wrist is down S6 SiP is up to 20% faster than Series 5 5GHz Wi-Fi and U1 Ultra Wideband chip Track your daily activity on Apple Watch and see your trends in the Fitness app on iPhone Measure workouts like running, walking, cycling, yoga, swimming, and dance Swimproof design 3 Sync your favorite music, podcasts, and audiobooks Pay instantly and securely from your wrist with Apple Pay High and low heart rate notifications and irregular heart rhythm notification 2 Built-in compass and real-time elevation readings Can detect if you’ve taken a hard fall, then automatically call emergency services for you Emergency SOS lets you get help from your wrist 4 watchOS 7 with sleep tracking, cycling directions, updates to Siri, and new customizable watch faces Aluminum cases available in new finishes Shipping Info Standard - 4 to 10 business days Ship Info Warranty One Year Limited Manufacturer's Warranty Component country Imported Assembled country China