Apple Watch Series 9 45mm GPS, Midnight Aluminum Case with Midnight Sport Band

Size and Weight

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

watchOS

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

Workouts and Activity

More Workouts

• Walk

• Elliptical

• Rower

• Stair Stepper

• HIIT

• Yoga

• Functional Strength Training

• Dance

• Cooldown

• Core Training

• Pilates

• Tai Chi

• Wheelchair

• Kickboxing

• Multisport

• Other

Safety

• Emergency SOS⁷

• International emergency calling⁸

• Crash Detection⁷

• Fall Detection

Durability

• Water resistance 50m (swimproof)⁹

• Dust resistance IP6X¹⁰

Connectivity

• L1 GPS, GNSS, Galileo, and BeiDou

• LTE and UMTS¹¹

• Wi‑Fi 4 (802.11n)

• Bluetooth 5.3

• Second‑generation Ultra Wideband chip¹²

• Apple Pay

• GymKit

• Supports Apple Watch For Your Kids¹³

Accessibility

Built‑in accessibility features supporting vision, mobility, hearing, and cognitive disabilities.

Features Include:

• VoiceOver

• Zoom

• On/Off Labels

• Reduce Transparency

• Increase Contrast

• Color Filters

• Text Size

• Bold Text

• Reduce Motion

• Hourly Chimes

• AssistiveTouch

• Button Click Speed

• Touch Accommodations

• Auto-Answer Calls

• Type to Siri

• RTT Support

• Audio Volume Balance

• Auto Transcription

• Live Speech

• Accessibility Shortcut

• Mono Audio

• Taptic Time

• Personal Voice

Environmental Requirements

• Operating temperature: 32° to 95° F (0° to 35° C)

• Nonoperating storage temperature: −4° to 113° F (−20° to 45° C)

• Relative humidity: 5% to 90% noncondensing

• Operating altitude: 0 feet to 10,000 feet (0m to 3000m)