Description (Faahfahin) Controls: Digital Crown with haptic feedback, Side button, Siri Chip: S8 SiP with 64-bit dual-core processor Sensors: Second-generation optical heart sensor Health and Wellness: Heart Rate app, High and low heart rate notifications1 Display: Retina LTPO OLED display, Ion-X front glass, Up to 1000 nits maximum brightness Power and Battery Life: All-day battery life, up to 18 hours of normal use Operating System: watchOS 11 Safety: Emergency SOS4
