Combining the latest technology and sleek design, the Apple Watch SE (2nd Gen) in 40mm offers the perfect balance between functionality and style. With advanced features and a compact size, this watch seamlessly integrates into your daily routine and enhances your overall experience.

Material and Finish

Aluminium case

Midnight
Starlight
Silver

Size and Weight

44mm
Height: 44mm
Width: 38mm
Depth: 10.7mm
368x448 pixels
977 sq mm display area
Weight (GPS): 32.9 grams
Weight (GPS + Cellular): 33 grams
Fits 140–245mm wrists

40mm
Height: 40mm
Width: 34mm
Depth: 10.7mm
324x394 pixels
759 sq mm display area
Weight (GPS): 26.4 grams
Weight (GPS + Cellular): 27.8 grams
Fits 130–200mm 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 about Power and Battery Life

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.

Learn more about watchOS

Workouts and Activity

Running
Custom interval 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
Bearing, incline, elevation and coordinates
Custom waypoints
Automatically generated waypoints to cellular connectivity
Backtrack GPS data
Offline maps
Topographic maps for over 1,000 national and regional parks (US only)

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
Splits and auto sets
SWOLF score
Automatic stroke detection
Kickboard detection
Average pace, total distance and lengths

More Workouts

Skiing
Snowboarding
Outdoor Rowing
Paddling
Golf
Walk
Elliptical
Rowing Machine
Stair Stepper
HIIT
Yoga
Functional Strength Training
Dance
Cooldown
Core Training
Pilates
Tai Chi
Wheelchair
Kickboxing
Multisport
Other

Safety

Emergency SOS⁴
International emergency calling⁵
Crash Detection⁴
Fall Detection
Noise monitoring
Backtrack

Durability

Water resistance 50m (swimproof)⁶

Connectivity

L1 GPS, GNSS, Galileo and QZSS
4G LTE and UMTS⁷
Wi‑Fi 4 (802.11n)
Bluetooth 5.3
Apple Pay
GymKit
Support for Family Setup⁸

Accessibility

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

Learn more about Accessibility

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 metres (0 to 10,000 feet)

Apple Watch SE and the Environment

Apple Watch SE paired with Sport Loop is designed to reduce its environmental impact:⁹

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 content¹⁰
100% of manufacturing electricity sourced from clean electricity¹¹
50% or less shipped by air¹²
75% emissions reduction against baseline¹³
7.2kg CO₂e total remaining emissions covered by high-quality carbon credits¹⁴

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 packaging¹⁵
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 electricity¹⁶
Meets California Energy Commission’s energy efficiency standards for battery charger systems¹⁷

Waste

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

Smarter chemistry¹⁸

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

Compatibility

iPhone Xs or later with iOS 18 or later

In the Box

Apple Watch SE
Strap
Apple Watch Magnetic Charger to USB‑C Cable (1m)