NetworkU.S. Cellular, T-Mobile, Unlocked, AT&T
Operating SystemApple Watch OS
Case ColorBlack
FeaturesAccelerometer, Always-on Display, Wireless Charging, Fall Detection, Sleep Monitor, ECG Monitor, Ambient Light Sensor, Blood Oxygen Sensor, GPS, Air Gesture, Barometer, Touchscreen, Near Field Communication (NFC), Biological Data Sensor, Caller ID, Bluetooth Enabled, Blood Pressure Monitor, AMOLED Display, Water-Resistant, E-compass, Gyroscope, Heart Rate Monitor, Wi-Fi Capable, Fitness Tracker, 3G Data Capable, Speakerphone, Altimeter, 4G Data Capable, Oled