Watch Series 12

Tech Specs

Material and Finish

Aluminum case
Dark Bronze | Light Gold | Black | Space Gray

Titanium case
Radiant Gold | Natural

Ceramic case
Pearl White | Night Blue

Size and Weight

46millimeters

Height (aluminum, titanium): 46mm
Height (ceramic): 47mm
Width (aluminum, titanium): 40mm
Width (ceramic): 41mm
Depth (aluminum, titanium): 9.7mm
Depth (ceramic): 9.85mm
416 by 496 pixels
1196 sq mm display area
Weight (aluminum, GPS): 39.5 grams
Weight (aluminum, GPS + Cellular): 38.6 grams
Weight (titanium): 44.9 grams
Weight (Pearl White ceramic): 51.3 grams
Weight (Night Blue ceramic): 52.9 grams
Fits 140–245mm wrists

42millimeter

Height (aluminum, titanium): 42mm
Height (ceramic): 43mm
Width: 37mm
Depth (aluminum, titanium): 9.7mm
Depth (ceramic): 9.85mm
374 by 446 pixels
970 sq mm display area
Weight (aluminum, GPS): 32.2 grams
Weight (aluminum, GPS + Cellular): 31.5 grams
Weight (titanium): 36.5 grams
Weight (Pearl White ceramic): 41.7 grams
Weight (Night Blue ceramic): 42.8 grams
Fits 130–200mm wrists

Hardware and Buttons

Digital Crown
Microphone with Voice Isolation
Side button
Band release button
Speaker
Health Sensing System

Controls

Digital Crown with haptic feedback
Side button
Single tap, double tap, and wrist flick gestures
Siri powered by Apple Intelligence

Chip

S11 chip with 64-bit dual-core processor
Audio Intelligence (Live Rewind, Siri Recap, Shazam, Sound Recognition)
4-core Neural Engine
64GB capacity

Sensors

Health Sensing System: second‑generation electrical heart sensor, always‑on optical heart sensor, blood oxygen sensor, and temperature sensor
Compass
Always‑on altimeter
High‑g accelerometer
High dynamic range gyroscope
Ambient light sensor
Depth gauge to 6 meters
Water temperature sensor

Health and Wellness

Readiness app
Vitals app with heart rate, respiratory rate, wrist temperature, sleep duration, and heart rate variability (HRV)
Blood Oxygen app
ECG app
Heart Rate app
High and low heart rate notifications
Recovery HRV
High‑frequency background heart rate tracking
Irregular rhythm notifications
Advanced Cycle Tracking app with fertile window estimates, retrospective ovulation estimates, and perimenopause and menopause support
Medications app
Mindfulness app with state of mind tracking
Noise app
Sleep app including sleep stages
Sleep score
Sleep apnea notifications
Hypertension notifications

Display

Always‑On Retina display with wide‑angle OLEDs and LTPO3
1Hz refresh
Active area (42mm): 374 by 446 pixels, 326 pixels per inch
Active area (46mm): 416 by 496 pixels, 326 pixels per inch
Ceramic Shield 2 (aluminum cases)
Sapphire front crystal (titanium and ceramic cases)
2000 nits peak brightness
1 nit minimum brightness

Audio

Speaker
Microphone
Media playback

Power and Battery Life

All‑day battery life, up to 24 hours of normal use
Up to 38 hours in Low Power Mode
Up to 10 hours workout tracking
Built‑in rechargeable lithium‑ion battery
Fast‑charge capable
Up to 80% charge in about 30 minutes
15 minutes for up to 12 hours of normal use
5 minutes for up to 10 hours of sleep tracking

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.

Workouts and Activity

Running
Custom workouts
Customizable Workout Views
Training Load
Heart Rate Zones (customizable)
Postworkout heart rate
VO2 max
Race Route
Pacer
Cadence, Stride Length, Ground Contact Time, Vertical Oscillation, and Running Power
Automatic track detection
Multisport workout
Heart Rate Zone, pace, and target alerts

Hiking
Compass with bearing, incline, elevation, and coordinates
Custom waypoints
Automatically generated waypoints to cellular connectivity
Backtrack GPS data
Offline maps with custom route creation16
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

Safety

Emergency SOS
International emergency calling
Fall Detection
Crash Detection
Last Emergency Call Availability Waypoint
Flashlight
Backtrack
Noise monitoring
Check In

Durability

Water resistance 50m (swimproof) under ISO standard 22810:2010
Dust resistance IP6X

Connectivity

All Models

Support for 2.4GHz and 5GHz Wi‑Fi networks
Wi‑Fi 4 (802.11n)
Bluetooth 5.3

Precision L1 GPS (GPS, GLONASS, Galileo, QZSS, and BeiDou)
Second‑generation Ultra Wideband chip

Apple Pay
GymKit

Models A3582 and A3587
Supports RedCap for 5G and LTE

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 Kids
International roaming

Accessibility

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

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
Sound Recognition

Environmental 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)