Apple Watch SE Technical Specifications

Material and Finish

Aluminium case

Midnight, Starlight, Silver

Size and Weight
  • Height: 44 mm
  • Width: 38 mm
  • Depth: 10.7 mm
  • 368x448 pixels
  • 977 sq mm display area
  • Weight (GPS):

    32.9 g
  • Weight (GPS + Cellular):

    33 g
  • Fits 140–245 mm wrists
  • Height: 40 mm
  • Width: 34 mm
  • Depth: 10.7 mm
  • 324x394 pixels
  • 759 sq mm display area
  • Weight (GPS):

    26.4 g
  • Weight (GPS + Cellular):

    27.8 g
  • Fits 130–200 mm wrists
Hardware and Buttons

Digital Crown

Microphone

Side button

Speaker / air vent

Optical heart sensor

Controls
  • Digital Crown with haptic feedback
  • Side button
  • Siri
Chip
  • S8 SiP with 64-bit dual-core processor
  • 2-core Neural Engine
  • 32GB capacity
Sensors
  • Second-generation optical heart sensor
  • Compass
  • Always-on altimeter
  • High-g accelerometer
  • High dynamic range gyroscope
  • Ambient light sensor
Health and Wellness
  • Heart Rate app
  • High and low heart rate notifications1
  • Irregular rhythm notifications1
  • Medications app
  • Mindfulness app
  • Noise app
  • Sleep app including sleep stages
Display
  • Retina LTPO OLED display
  • Ion-X front glass
  • Up to 1,000 nits maximum brightness
  • 326 pixels per inch
Power and Battery Life
  • All-day battery life, up to 18 hours of normal use2
  • Built-in rechargeable lithium-ion battery
  • Up to 80% charge in about 1.5 hours3
  • Learn more
Operating System
  • watchOS 11
  • 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 11
Workouts and Activity
Running
  • Custom workouts
  • Customisable Workout Views
  • Training load
  • Heart Rate Zones
  • Race Route
  • Pacer
  • Stride length, ground contact time and vertical oscillation
  • Automatic track detection
  • Multisport workout

Hiking
  • Compass with bearing, incline, elevation and coordinates
  • Custom waypoints
  • Automatically generated waypoints to cellular connectivity
  • Backtrack GPS data
  • Offline maps with custom route creation
  • Topographic maps for thousands of national and regional parks (US only)
  • Hundreds of curated hikes across all 63 US national parks

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

Swimming
  • Pool swim or open water swim
  • Custom workouts for pool swims
  • Splits and auto sets
  • SWOLF score
  • Automatic stroke detection
  • Kickboard detection
  • Average pace, total distance and laps

More Workouts
Safety
  • Emergency SOS4
  • International emergency calling5
  • Crash Detection4
  • Fall Detection
  • Noise monitoring
  • Backtrack
Durability

Water resistance 50 m (swimproof)6

Connectivity
  • L1 GPS, GNSS, Galileo and QZSS
  • LTE and UMTS7
  • Wi-Fi 4 (802.11n)
  • Bluetooth 5.3
  • GymKit
  • Support for Apple Watch For Your Kids8
  • International roaming9
Accessibility

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

Learn more
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
  • Type to Siri
  • 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 (32° to 95° F)

Non-operating storage temperature:

–20° to 45° C (–4° to 113° F)

Relative humidity:

5% to 90% non-condensing

Operating altitude:

0 to 3,000 m (0 to 10,000 ft)

Apple Watch SE and the Environment

Apple Watch SE is designed to reduce environmental impact:10, 11

See the Apple Watch SE Product Environmental Report (PDF)

Progress towards Apple 2030

Apple Watch SE paired with Sport Loop is one of Apple’s first carbon-neutral products:

  • 30% recycled or renewable content12
  • 100% of manufacturing electricity sourced from clean electricity13
  • 50% or more shipped without airplanes14
  • 75% emissions reduction against baseline15
  • 7.2 kg CO2e total remaining emissions covered by high-quality carbon credits16
See Apple’s commitment

Materials

  • 100% recycled aluminium in the case
  • 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 in the Taptic Engine
  • 100% recycled rare earth elements in all magnets
  • 100% fibre-based packaging17
  • 44% recycled content in fibre packaging

Energy

  • 100% of manufacturing electricity for Apple Watch SE and Sport Loop is sourced from clean electricity
  • 100% of expected customer energy use matched with clean electricity18
  • Meets California Energy Commission’s energy efficiency standards for battery charger systems19

Waste

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

Smarter chemistry20

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

iPhone Xs or later, including iPhone SE (2nd generation or later), with iOS 18 or later

In the Box
  • Apple Watch SE
  • Strap
  • Apple Watch Magnetic Charger to USB-C Cable (1 m)
Lined up in a row: front view of Apple Watch SE hardware, a Periwinkle (purple/blue) sport band and Magnetic Charger to USB-C Cable.