Features:

• 100m water resistantfootnote²
• Swimproof and recreational diving to 40mfootnote²
• Depth gauge with water temperature sensor
• Customizable Action button
• Always-On Retina display, Up to 2000 nits brightness
• Blood Oxygen appfootnote⁴
• ECG appfootnote⁵
• High and low heart rate notifications
• Irregular rhythm notificationfootnote⁶
• Cardio fitness notifications
• Temperature sensingfootnote⁷
• Cycle Tracking with retrospective ovulation estimatesfootnote⁸
• Emergency SOSfootnote⁹
• International emergency callingfootnote¹⁰
• Fall Detection
• Crash Detectionfootnote⁹
• High-g accelerometer
• 86-decibel Siren to attract attention
• Cellular connectivityfootnote¹¹
• Supports Family Setupfootnote¹²
• Connect family members who don’t have an iPhone