Apple Watch Series 9 GPS 45mm Starlight Aluminium Case with Starlight Sport Band

Material and Finish

• Gold
• Silver
• Graphite

Size and Weight

• 45mm
• Height: 45mm
• Width: 38mm
• Depth: 10.7mm
• Weight (aluminum, GPS): 38.7 grams
• Weight (aluminum, GPS + Cellular): 39.0 grams
• Weight (stainless steel): 51.5 grams
• Fits 140–245mm wrists

Hardware and Buttons

• Digital Crown
• Microphone
• Side button
• Electrical heart sensor
• Speaker/air vent
• Optical heart sensor

Controls

• Digital Crown with haptic feedback
• Side button
• Double tap gesture
  Siri with on‑device processing

Chip

• S9 SiP with 64‑bit dual-core processor
• 4‑core Neural Engine
• 64GB capacity

Sensors

• Electrical heart sensor
• Third‑generation optical heart sensor
• Temperature sensing1

Compass

• Always‑on altimeter
• High‑g accelerometer
• High dynamic range gyroscope
• Ambient light sensor
• Health and Wellness
• ECG app2
• Cycle Tracking app with retrospective ovulation estimates3
• Heart Rate app
• High and low heart rate notifications
• Irregular rhythm notifications4
• Medications app
• Mindfulness app
• Noise app
• Sleep app including sleep stages

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
• 326 pixels per inch

Power and Battery Life

• All‑day battery life, up to 18 hours of normal use5
• Up to 36 hours in Low Power Mode5
• Built‑in rechargeable lithium‑ion battery
• Fast‑charge capable6
• Up to 80% charge in about 45 minutes6

Operating System

• watch OS
• watch OS is the world’s most advanced wearable operating system, with apps and features designed to keep
• you active, healthy, safe, and connected.