Specs / Apple / Apple Watch SE 3

Apple Watch SE 3 Specifications

Name: Apple Watch SE 3
Brand: Apple

Complete Apple Watch SE 3 technical specifications · Released 2025 · model numbers, colors, storage, dimensions and hardware details.

Chip: S10 chip with 64‑bit dual core processor; 4‑core Neural Engine; 64GB capacity Display: Always-On Retina display with OLED and LTPO; Tough Ion-X front glass with 4x crack resist…

Check IMEI / Serial All specs

Display

Always-On Retina display with OLED and LTPO; Tough Ion-X front glass with 4x crack resistance5; Up to 1000 ni…

Chip

S10 chip with 64‑bit dual core processor; 4‑core Neural Engine; 64GB capacity

Storage / Colors

64GB · Aluminum case, Starlight, Midnight

Weight / OS

32.9 g · watchOS

Apple Watch SE 3 technical specifications

This page contains complete technical specifications for Apple Watch SE 3, including display, chip, storage, colors, model numbers, dimensions, weight, operating system, connectivity, battery information and other hardware details.

Use this information to compare Apple devices, identify the exact model, check compatibility and verify key hardware features before service, repair, resale or purchase.

↔Size and Weight

44mm
Height: 44mm
Width: 38mm
Depth: 10.7mm
368 by 448 pixels
977 sq mm display area
Weight (GPS): 32.9 grams
Weight (GPS + Cellular): 33.0 grams
Fits 140–245mm wrists
40mm
Height: 40mm
Width: 34mm
324 by 394 pixels
759 sq mm display area
Weight (GPS): 26.3 grams
Weight (GPS + Cellular): 26.4 grams
Fits 130–200mm wrists

▣Display

Always-On Retina display with OLED and LTPO
Tough Ion-X front glass with 4x crack resistance5
Up to 1000 nits peak brightness
2 nits minimum brightness
326 pixels per inch

⚙Chip

S10 chip with 64‑bit dual core processor
4‑core Neural Engine
64GB capacity

iSensors

Second-generation optical heart sensor
Temperature sensor1
Compass
Always-on altimeter
High-g accelerometer
High dynamic range gyroscope
Ambient light sensor

iOperating 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.

iAccessibility

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
Color 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
Live Listen

iEnvironmental Requirements

Operating temperature: 32° to 95° F (0° to 35° C)
Nonoperating storage temperature: –4° to 113° F (–20° to 45° C)
Relative humidity: 5% to 90% noncondensing
Operating altitude: 0 feet to 10,000 feet (0m to 3000m)

iIn the Box

Apple Watch SE 3
Band
Apple Watch Magnetic Fast Charger to USB‑C Cable (1m)

iApple Watch and the Environment

Apple Watch SE 3 is designed to reduce environmental impact:16
See the Apple Watch SE 3 Product Environmental Report (PDF)
Progress toward Apple 2030
Apple 2030 is our commitment to be carbon neutral for our entire carbon footprint. Our plan to decarbonize products is rigorous and focuses on transitioning to low-carbon electricity, designing with recycled and low-carbon materials, and prioritizing lower-carbon ways of shipping products, like ocean freight.
See Apple's commitment
Materials
Apple Watch SE 3 is made with 40% recycled content,17 including:
100% recycled aluminum in the case
100% recycled cobalt and 95% recycled lithium in the battery
100% recycled rare earth elements in all magnets
100% recycled gold plating and tin solder in all Apple-designed printed circuit boards
100% recycled tungsten in the Taptic Engine
40% recycled glass in the display glass
Energy
100% of manufacturing electricity for Apple Watch SE 3 is sourced from renewable electricity18
100% of expected customer energy use matched with low-carbon electricity
Meets California Energy Commission’s energy efficiency standards for battery charger systems19
Packaging
100% fiber-based packaging20
Apple Watch SE 3 packaging is designed to be compact, enabling 40% more units per trip compared to Apple Watch SE
Waste
No established final assembly sites generate waste sent to landfill as part of Apple’s Zero Waste Program21
Smarter chemistry22
All of the materials used in Apple products, accessories, and packaging are covered by the requirements of our Regulated Substances Specification, which was one of the first in industry to restrict the use of key substances of concern. See the latest Environmental Progress Report to understand Apple’s recent efforts in phasing out these chemistries.

iAudio

Speaker
Microphone
Media playback

iCompatibility

iPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 26 or later

⌁Connectivity

All Models
Support for 2.4GHz Wi-Fi networks
Wi-Fi 4 (802.11n)
Bluetooth 5.3
L1 GPS (GLONASS, Galileo, QZSS, and BeiDou)
Apple Pay
GymKit
Model A3326 and A3328
Supports RedCap for 5G12 and LTE13
FDD‑5G NR (Bands n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n66, n71)
TDD‑5G NR (Bands n38, n40, n41)
FDD‑LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71)
TDD‑LTE (Bands 38, 39, 40, 41)
Support for Apple Watch For Your Kids14
International roaming15

iControls

Digital Crown with haptic feedback
Side button
Double tap and wrist flick gestures
Siri with on‑device processing

iDurability

Water resistance 50m (swimproof)11

iHardware and Buttons

Digital Crown
Microphone
Side button
Speaker/air vent
Optical heart sensor

iHealth and Wellness

Cycle Tracking app with retrospective ovulation estimates2
Heart Rate app
High and low heart rate notifications
Irregular rhythm notifications3
Medications app
Mindfulness app
Noise app
Sleep app including sleep stages
Sleep score
Sleep apnea notifications4

iMaterial and Finish

Aluminum case
Starlight
Midnight

⚡Power and Battery Life

All‑day battery life, up to 18 hours of normal use6
Up to 32 hours in Low Power Mode6
Built‑in rechargeable lithium‑ion battery
Fast‑charge capable7
Up to 80% charge in about 45 minutes7
15 minutes for up to 8 hours of normal use8
8 minutes for up to 8 hours of sleep tracking8
Learn more about Power and Battery Life

iSafety

Emergency SOS9
International emergency calling10
Crash Detection9
Fall Detection
Noise monitoring
Backtrack

iWorkouts 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
Topographic maps for thousands of national and regional parks (U.S. only)
Hundreds of curated hikes across all 63 U.S. 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
Skiing
Snowboarding
Outdoor Rowing
Paddling
Golf
Walk
Elliptical
Rower
Stair Stepper
HIIT
Yoga
Functional Strength Training
Dance
Cooldown
Core Training
Pilates
Tai Chi
Wheelchair
Kickboxing
Multisport
Other

Apple Watch SE 3 FAQ

What year was Apple Watch SE 3 released?

Apple Watch SE 3 was released in 2025.

What is the display size of Apple Watch SE 3?

Apple Watch SE 3 has Always-On Retina display with OLED and LTPO; Tough Ion-X front glass with 4x crack resist….

What chip does Apple Watch SE 3 use?

Apple Watch SE 3 uses S10 chip with 64‑bit dual core processor; 4‑core Neural Engine; 64GB capacity.

What storage capacities are available for Apple Watch SE 3?

Available storage capacities include 64GB.

What are the model numbers for Apple Watch SE 3?

Known model numbers include A3326, A3328, A2515, A2305.