What health features does the Apple Watch Series 11 have?

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The Apple Watch Series 11 includes Apple's most comprehensive health monitoring capabilities, with several features new to this generation.

Heart Health Monitoring

• ECG: Single-lead electrocardiogram for atrial fibrillation detection
• Heart Rate: Continuous monitoring with 3rd-generation optical sensor
• Irregular Rhythm: Passive background monitoring for atrial fibrillation
• Alerts: High and low heart rate notifications when thresholds are exceeded
• Cardio Fitness: VO2 max estimation for fitness level tracking

Blood Pressure Screening (New)

The FDA-cleared hypertension notification system analyzes blood vessel responses:

• Monitors passively in background using photoplethysmography
• Reviews patterns over 30-day periods
• Alerts when signs suggest possible undiagnosed hypertension
• Screening tool only (does not provide blood pressure readings)
• Available only for users without existing hypertension diagnosis

Sleep Tracking

• Sleep Score (New): 0-100 rating based on duration, consistency, and interruptions
• Sleep Stages: Tracks REM, Core, and Deep sleep throughout the night
• Sleep Apnea Detection: Monitors breathing patterns and notifies of potential issues
• Respiratory Rate: Tracks breaths per minute during sleep

Blood Oxygen Monitoring

• Periodic background measurements throughout the day
• On-demand readings via Blood Oxygen app
• Measures SpO2 saturation levels (70-100% range)

Temperature Sensing

• Wrist temperature sensor takes readings during sleep
• Supports menstrual cycle tracking with ovulation estimates
• Can indicate elevated temperatures suggesting illness
• Tracks baseline temperature variations over time

Safety Features

• Fall Detection: Detects hard falls, auto-calls emergency services if no response
• Crash Detection: Identifies severe car crashes
• Emergency SOS: Quick access to emergency services
• Satellite SOS: Emergency contact without cell coverage (cellular models only)

Additional Features

• Vitals App: Overnight dashboard of key health metrics
• Cycle Tracking: Period prediction, ovulation estimates, fertility windows
• Medication Tracking: Reminders and logging
• Mental Health: Mood logging and mindfulness exercises
• Noise Monitoring: Alerts when environmental noise may damage hearing

All health data syncs to the iPhone Health app for long-term tracking and healthcare provider sharing.

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