Apple Watch Series 9 Technical Specifications

Material and Finish

Aluminum case

Pink, Midnight, Starlight, Silver, (PRODUCT)RED

Stainless steel case

Gold, Silver, Graphite

Size and Weight
  • Height: 45mm
  • Width: 38mm
  • Depth: 10.7mm
  • Weight (aluminum, GPS):
  • Weight (aluminum, GPS + Cellular):
  • Weight (stainless steel):
  • Fits 140–245mm wrists
  • Height: 41mm
  • Width: 35mm
  • Depth: 10.7mm
  • Weight (aluminum, GPS):
  • Weight (aluminum, GPS + Cellular):
  • Weight (stainless steel):
  • Fits 130–200mm wrists
Hardware and Buttons

Digital Crown


Side button

heart sensor

Speaker/air vent

Optical heart sensor

  • Digital Crown with haptic feedback
  • Side button
  • Double tap gesture
  • S9 SiP with 64‑bit dual‑core processor
  • 4‑core Neural Engine
  • 64GB capacity
  • 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
  • Always‑On Retina LTPO OLED display
  • Edge‑to‑edge display
  • Ion‑X front glass (aluminum cases)
  • Sapphire front crystal (stainless steel cases)
  • Up to 2,000 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

Learn more

Operating System
  • watchOS 10
  • watchOS is the world’s most advanced wearable operating system, with apps and features designed to keep you active, healthy, safe, and connected.

Learn more about watchOS 10

Workouts and Activity
  • Custom interval workouts
  • Customizable Workout Views
  • Heart Rate Zones
  • Race Route
  • Stride length, ground contact time, and vertical oscillation
  • Automatic track detection
  • Multisport workout

  • Bearing, incline, elevation, and coordinates
  • Custom waypoints
  • Automatically generated waypoints to cellular connectivity
  • Backtrack GPS data
  • Topographic maps for over 1,000 national and regional parks (U.S. only)

  • Average speed, elevation gained, and distance
  • Connection to cycling accessories via Bluetooth
  • Functional Threshold Power
  • Power Zones
  • Cadence
  • Live Activity on iPhone

  • Pool swim or open water swim
  • Splits and auto sets
  • SWOLF score
  • Automatic stroke detection
  • Kickboard
  • Average pace, total distance, and laps

More Workouts
  • Emergency SOS7
  • International emergency calling8
  • Crash Detection7
  • Fall Detection
  • Water resistance 50m (swimproof)9
  • Dust resistance IP6X10
  • L1 GPS, GNSS, Galileo, and BeiDou
  • LTE and UMTS11
  • Wi‑Fi 4 (802.11n)
  • Bluetooth 5.3
  • Second‑generation Ultra Wideband chip12
  • GymKit

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
  • RTT Support
  • Audio Volume Balance
  • Auto Transcription
  • Live Speech
  • Accessibility Shortcut
  • Mono Audio
  • Taptic Time
  • Personal Voice
Environmental Requirements
Operating temperature:

0° to 35° C

Nonoperating storage temperature:

−20° to 45° C

Relative humidity:

5% to 90% noncondensing

Operating altitude:

0m to 3,000m

Apple Watch Series 9 and the Environment

Apple Watch Series 9 is designed to reduce environmental impact:13

See the Apple Watch Series 9 (Aluminum) Product Environmental Report (PDF) See the Apple Watch Series 9 (Stainless Steel) Product Environmental Report (PDF)

Progress toward Apple 2030

Apple Watch Series 9 with aluminum case and Sport Loop is one of Apple’s first carbon‑neutral products:

  • 30% recycled or renewable content14
  • 100% of manufacturing electricity sourced from clean electricity15
  • 50% or more shipped without airplanes16
  • 78% emissions reduction against baseline17
  • 8.1kg CO2e total remaining emissions covered by high-quality carbon credits18


  • 100% recycled aluminum in the case
  • 100% recycled cobalt in the battery19
  • 100% recycled gold in the plating of multiple printed circuit boards
  • 100% recycled tin in the solder of multiple printed circuit boards
  • 100% recycled tungsten and copper wire in the Taptic Engine
  • 100% recycled rare earth elements in all magnets
  • 100% recycled copper foil in the main logic board
  • 26% renewable plastic in the speaker
  • 100% fiber-based packaging20
  • 47% recycled content in fiber packaging


  • 100% of manufacturing electricity for carbon‑neutral Apple Watch Series 9 with aluminum case and Sport Loop is sourced from clean electricity
  • 100% of expected customer energy use matched with clean electricity21
  • Meets California Energy Commission’s energy efficiency standards for battery charger systems22


  • No established final assembly sites generate waste sent to landfill as part of Apple’s Zero Waste Program

Smarter chemistry23

  • Arsenic-free display glass
  • Mercury-, BFR-, and PVC-free
  • Meets European REACH regulation on nickel


Apple takes a holistic view of materials management and waste minimization.


iPhone XS or later with iOS 17 or later

In the Box
  • Apple Watch Series 9
  • Band
  • Apple Watch Magnetic Fast Charger to USB‑C Cable (1m)
Lined up in a row: front view of Apple Watch Series 9 hardware, a storm blue sport band, and Magnetic Fast Charger to USB-C Cable.