GPS + Cellular model lets you call, text, and get directions without your phoneMeasure your blood oxygen with an all-new sensor and appCheck your heart rhythm with the ECG appThe Always-On Retina display is 2.5x brighter outdoors when your wrist is downS6 SiP is up to 20% faster than Series 55GHz Wi-Fi and U1 Ultra Wideband chipTrack your daily activity on Apple Watch and see your trends in the Fitness app on iPhoneMeasure workouts like running, walking, cycling, yoga, swimming, and danceSwimproof designSync your favorite music, podcasts, and audiobooks
