Apple Watch SE GPS + Cellular 40MM Starlight Aluminum Case with Starlight Sport Band - S/M

Display
Retina LTPO OLED display
Ion-X front glass
Up to 1000 nits maximum brightness
326 pixels per inch

Size
Height: 40mm
Width: 34mm
Depth: 10.7mm
324 by 394 pixels
759 sq mm display area
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

Power and Battery Life
All-day battery life, up to 18 hours of normal use
Built-in rechargeable lithium-ion battery
Up to 80% charge in about 1.5 hours

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.

Workouts and Activity
Running
Custom workouts
Customizable 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

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

Safety
Emergency SOS
International emergency calling
Crash Detection
Fall Detection
Noise monitoring
Backtrack

Durability
Water resistance 50m (swimproof)

Connectivity
L1 GPS, GNSS, Galileo, and QZSS
LTE and UMTS
Wi-Fi 4 (802.11n)
Bluetooth 5.3
Apple Pay
GymKit
Support for Apple Watch For Your Kids
International roaming

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

In the Box
Apple Watch SE
Band
Apple Watch Magnetic Charger to USB-C Cable (1m)

Equipped with all the essentials to keep you motivated, active, connected, and safe. watchOS 11 adds more intelligence, personalization, and connectivity. With features like Fall Detection and enhanced workout metrics, the Apple Watch SE offers exceptional value. Send texts, make calls, listen to music and podcasts, use Siri, or call for help with Emergency SOS.⁴ The Apple Watch SE (GPS) stays connected through your iPhone or Wi-Fi. Monitor your health with notifications for irregular heart rhythms or unusual heart rates. Access help when needed with Fall Detection, Crash Detection, and Emergency SOS. Automatically notify loved ones of your safe arrival with Check In. Integrates smoothly with your Apple devices and services. Unlock your Mac automatically, locate your devices with ease, and make payments with Apple Pay. The Workout app and 50m water resistance offers diverse training options and advanced metrics for deeper insights into your performance. Plus, Apple Watch includes three months of Apple Fitness+ for free. With watch bands in a range of styles, materials, and colors and fully customizable watch faces, you can change your watch to fit your mood or the moment. Stay connected in more places than ever. Send a text, make a call and stream music and podcasts without your iPhone nearby.