49mm
Height: 49mm
Width: 44mm
Depth: 14.4mm
Case Weight: 61.4g
49mm case
Aerospace grade titanium
Dual speakers
Three-microphone array with beamforming and wind noise mitigation
Customizable Action button
Digital Crown with haptic feedback
Side button
Double tap gesture
On-Device Siri
Always-On Retina LTPO OLED display
Flat sapphire crystal display
Up to 3000 nits maximum brightness
1 nit minimum brightness
S9 SiP with 64-bit dual-core processor
4-core Apple Neural Engine
64GB capacity
Electrical heart sensor and ECG app1
Third-generation optical heart sensor
High and low heart rate notifications1
Irregular rhythm notifications2
Sleep stages
Temperature sensing3
Depth gauge ±1m accuracy and app
Water temperature sensor
Compass with Waypoints and Backtrack
Always-on altimeter
High-g accelerometer
High dynamic range gyroscope
Ambient light sensor
Emergency SOS4
International emergency calling5
Siren
Crash Detection4
Fall Detection4
Water resistance 100m (swim proof)6
Dust resistance IP6X9
EN13319 recreational scuba diving to 40m6
Tested to MIL-STD 810H: altitude, high temperature, low temperature, temperature shock, immersion, freeze with thaw, ice and freezing rain, and shock and vibration10
Precision dual-frequency GPS: GPS, GNSS, Galileo and BeiDou
LTE and UMTS7
Wi-Fi 4 (802.11n)
Bluetooth 5.3
Second-generation Ultra Wideband chip11
Apple Pay
GymKit
Built-in rechargeable lithium-ion battery
Up to 36 hours normal use8
Up to 72 hours in Low Power Mode8
USB-C magnetic fast charging cable
On-wrist operating temperature: -4° F to 130° F (-20° C to 55° C)
Operational temperature: 32°F to 95°F (0°C to 35°C)
Nonoperational storage temperature: 4°F to 113°F (-20° to 45°C)
Dive operating temperature: 32°F to 104°F (0°C to 40°C)
Relative humidity: 5% to 90% noncondensing
Operating Altitude: -1600 feet to 29,500 feet (-500 m to 9000 m)