You can answer calls and respond to texts from your wrist with a GPS model. Check your blood oxygen levels using a brand-new sensor and app. Use the ECG app to check the rhythm of your heart. When your wrist is down, the Always-On Retina display is 2.5 times brighter outside. Compared to Series 5 5GHz Wi-Fi and U1 Ultra Wideband chips, S6 SiP is up to 20% faster. Use the Apple Watch to monitor your daily activities, and the iPhone's Fitness app to view your trends. Track your running, walking, cycling, yoga, swimming, and dancing workouts. Design that is swimproof Design that is swimproof Sync your preferred audiobooks, podcasts, and music.