Tech Specs
Apple Watch Series 9
45mm or 41mm case size
Aluminum or stainless steel
Speaker
Microphone
Control:
Digital Crown with haptic feedback
Side button
Double tap gesture^
On-Device Siri^
Display:
Always-On Retina LTPO OLED display
Edge-to-edge display
Ion-X front glass (Aluminum cases)
Sapphire front crystal (Stainless steel cases)
Up to 2000 nits maximum brightness
1 nit minimum brightness
Chip:
S9 SiP with 64-bit dual-core processor
4-core Apple Neural Engine
64GB capacity
Sensors:
Blood oxygen sensor and app3
Electrical heart sensor and ECG app4
Third-generation optical heart sensor
High and low heart rate notifications4
Irregular rhythm notifications5
Sleep stages
Temperature sensing6
Compass with Waypoints and Backtrack
Always-on altimeter
High-g accelerometer
High dynamic range gyroscope
Ambient light sensor
Safety:
Emergency SOS8
International emergency calling9
Crash Detection8
Fall Detection8
Splash, Water and Dust:
Water resistance 50m (swim proof)11
Dust resistance IP6X19
Connectivity and Communication:
L1 GPS, GNSS, Galileo, and BeiDou
LTE and UMTS13
Wi-Fi 4 (802.11n)
Bluetooth 5.3
Second-generation Ultra Wideband chip20
Apple Pay
GymKit
Power and Battery Life:
Built-in rechargeable lithium-ion battery
Up to 18 hours normal use16
Up to 36 hours in Low Power Mode16
USB-C magnetic fast charging cable
Environmental Requirements:
Operational temperature: 32°F to 95°F (0°C to 35°C)
Nonoperational storage temperature: 4°F to 113°F (-20° to 45°C)
Relative humidity: 5% to 90% noncondensing
Operating Altitude: 0 feet to 10,000 feet (0 m to 3000 m)
Dimensions
Height: 41mm
Width: 35mm
Depth: 10.7mm
Weight (Aluminum, GPS): 31.9g
Weight (Aluminum, GPS + Cellular): 32.1g
Weight (Stainless Steel): 42.3g
Height: 45mm
Width: 38mm
Depth: 10.7mm
Weight (Aluminum, GPS): 38.7g
Weight (Aluminum, GPS + Cellular): 39.0g
Weight (Stainless Steel): 51.5g
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