Track your workouts and activity more precisely than ever — in the water, at the gym or on the road. See your metrics without raising your wrist on the enhanced Always-On Retina display. Go to new heights, lengths and depths with GPS, real-time elevation and the built-in compass for navigation. Close your Activity rings for a healthier day. And stay inspired to keep moving by streaming music, podcasts and audiobooks from your watch. 44mm fits 140 - 220 mm wrists. GPS + Cellular model lets you call, text and get directions without your phone. Measure your blood oxygen with an all-new sensor and app. Check your heart rhythm with the ECG app. The Always-On Retina display is 2.5x brighter outdoors when your wrist is down. ConnectivityiOS operating system. Bluetooth 5 connection. Wi-Fi. BatteryLow usage time of up to 1 day. Physical specificationSize: large. Watch size H44, W38, D10.4mm. Strap can be removed and replaced. Weight 47.1g. FeaturesWater resistant. Swimproof. Compatible with apps from the Apple app store. Answer calls. Read texts and reply to texts. Read emails. Receive social network notifications. View calendar and amend calendar. Displays weather. Music player. Heart rate monitor. Pedometer. Distance. Accelerometer. GPS. Calories. Sleep. Accessories included: 1m magnetic charging cable, including charger. Manufacturer’s 1 year guarantee. EAN: 190199873636.