Dimensions
49mm
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Height: 49mm
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Width: 44mm
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Depth: 14.4mm
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Case Weight: 61.4g
Design
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49mm case
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Aerospace grade titanium
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Dual speakers
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Three-microphone array with beamforming and wind noise mitigation
Control:
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Customizable Action button
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Digital Crown with haptic feedback
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Side button
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Double tap gesture
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On-Device Siri
Display:
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Always-On Retina LTPO OLED display
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Flat sapphire crystal display
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Up to 3000 nits maximum brightness
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1 nit minimum brightness
Chip:
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S9 SiP with 64-bit dual-core processor
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4-core Apple Neural Engine
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64GB capacity
Sensors:
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Electrical heart sensor and ECG app1
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Third-generation optical heart sensor
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High and low heart rate notifications1
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Irregular rhythm notifications2
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Sleep stages
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Temperature sensing3
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Depth gauge ±1m accuracy and app
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Water temperature sensor
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Compass with Waypoints and Backtrack
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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
Safety:
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Emergency SOS4
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International emergency calling5
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Siren
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Crash Detection4
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Fall Detection4
Splash, Water and Dust:
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Water resistance 100m (swim proof)6
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Dust resistance IP6X9
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EN13319 recreational scuba diving to 40m6
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Tested to MIL-STD 810H: altitude, high temperature, low temperature, temperature shock, immersion, freeze with thaw, ice and freezing rain, and shock and vibration10
Connectivity and Communication:
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Precision dual-frequency GPS: GPS, GNSS, Galileo and BeiDou
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LTE and UMTS7
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Wi-Fi 4 (802.11n)
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Bluetooth 5.3
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Second-generation Ultra Wideband chip11
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Apple Pay
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GymKit
Power and Battery Life:
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Built-in rechargeable lithium-ion battery
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Up to 36 hours normal use8
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Up to 72 hours in Low Power Mode8
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USB-C magnetic fast charging cable