Apple Watch Series 9 Technical Specifications

Material and Finish

Aluminium case

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

Stainless steel case

Gold, Silver, Graphite

Size and Weight
  • Height: 45mm
  • Width: 38mm
  • Depth: 10.7mm
  • Weight (Aluminium, GPS):
  • Weight (Aluminium, GPS + Cellular):
  • Weight (Stainless Steel):
  • Fits 140–245mm wrists
  • Height: 41mm
  • Width: 35mm
  • Depth: 10.7mm
  • Weight (Aluminium, GPS):
  • Weight (Aluminium, 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 (aluminium 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
  • Customisable 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 mobile connectivity
  • Backtrack GPS data
  • Topographic maps for over 1,000 national and regional parks (US 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
  • Apple Pay
  • GymKit

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

Features include:
  • VoiceOver
  • Zoom
  • On/Off Labels
  • Reduce Transparency
  • Increase Contrast
  • Colour 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

Non-operating storage temperature:

−20° to 45° C

Relative humidity:

5% to 90% non-condensing

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

Progress towards Apple 2030

Apple Watch Series 9 with aluminium 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 aluminium 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% fibre-based packaging20
  • 47% recycled content in fibre packaging


  • 100% of manufacturing electricity for carbon-neutral Apple Watch Series 9 with aluminium 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 Programme

Smarter chemistry23

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

Apple Trade In

Trade in your eligible device for credit towards your next purchase.24 If your device isn’t eligible for credit, we’ll recycle it for free.


iPhone XS or later with iOS 17 or later

In the Box
  • Apple Watch Series 9
  • Strap
  • 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.