Controls
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Digital Crown with haptic feedback
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Side button
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Double tap and wrist flick gestures
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Siri with on‑device processing
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Chip
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S10 chip with 64‑bit dual-core processor
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4‑core Neural Engine
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64 GB capacity
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Sensors
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Electrical heart sensor
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Third‑generation optical heart sensor
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Blood oxygen sensor
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Temperature sensor
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Compass
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Always‑on altimeter
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High‑g accelerometer
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High dynamic range gyroscope
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Ambient light sensor
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Depth gauge to 6 M
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Water temperature sensor
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Health and Wellness
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Blood Oxygen app
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ECG app
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Cycle Tracking app with retrospective ovulation estimates
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Heart Rate app
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High and low heart rate notifications
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Irregular rhythm notifications
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Medications app
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Mindfulness app with state of mind tracking
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Noise app
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Sleep app including sleep stages
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Sleep score
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Sleep apnea notifications
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Hypertension notifications
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Display
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Always‑On Retina display with wide‑angle OLEDs and LTPO
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Up to 2000 nits peak brightness
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1 nit minimum brightness
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326 pixels per inch
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Audio
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Speaker
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Microphone
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Media playback
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Power and Battery Life
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All‑day battery life, up to 24 hours of normal use
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Up to 38 hours in Low Power Mode
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Built‑in rechargeable lithium‑ion battery
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Fast‑charge capable
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Up to 80% charge in about 30 minutes
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15 minutes for up to 8 hours of normal use
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5 minutes for up to 8 hours of sleep tracking
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Operating System
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watchOS
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watchOS is the world’s most advanced wearable operating system, with apps and features designed to keep you active, healthy, safe, and connected.
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Safety
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Emergency SOS
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International emergency calling
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Crash Detection
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Fall Detection
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Noise monitoring
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Backtrack
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Durability
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Water resistance 50 M (swimproof)
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Dust resistance IP6X
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Environmental Requirements
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Operating temperature:
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32° to 95° F (0° to 35° C)
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Nonoperating storage temperature:
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–4° to 113° F (–20° to 45° C)
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Relative humidity:
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5% to 90% noncondensing
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Operating altitude:
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0 ft to 10,000 ft (0 M to 3000 M)
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