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

Features

• 45mm or 41mm case size
• Aluminum or stainless steel
• Speaker
• Microphone
• Digital Crown with haptic feedback
• Side button
• Double tap gesture^{^}
• On-Device Siri^{^}
• 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 brightness
• 1 nit minimum brightness
• S9 SiP with 64-bit dual-core processor
• 4-core Apple Neural Engine
• 64GB capacity
• Blood oxygen sensor and app¹
• Electrical heart sensor and ECG app²
• Third-generation optical heart sensor
• High and low heart rate notifications²
• Irregular rhythm notifications³
• Sleep stages
• Temperature sensing⁴
• Compass
• Always-on altimeter
• High-g accelerometer Up to 256 g-forces with Fall Detection and Crash Detection High dynamic range gyroscope
• Ambient light sensor
• Emergency SOS⁵
• International emergency calling⁶
• Crash Detection⁵
• Fall Detection⁵
• Water resistance 50m (swim proof)⁷
• Dust resistance IP6X¹⁰
• L1 GPS, GNSS, Galileo, and BeiDou
• LTE and UMTS⁸
• Wi-Fi 4 (802.11n)
• Bluetooth 5.3
• Second-generation Ultra Wideband chip¹¹
• Apple Pay
• GymKit
• Built-in rechargeable lithium-ion battery
• Up to 18 hours⁹
• Up to 36 hours in Low Power Mode⁹
• USB-C magnetic fast charging cable
• 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)

In the Box

• Apple Watch Series 9
• Band/Loop
• Apple Watch Magnetic Fast Charger to USB-C Cable (1 m)