Health and Wellness

Blood Oxygen app
ECG app
Cycle Tracking app with retrospective ovulation estimates
Heart Rate app
High and low heart rate notifications
Irregular rhythm notifications
Medications app
Mindfulness app with state of mind tracking
Noise app
Sleep app including sleep stages
Sleep score
Sleep apnoea notifications
Hypertension notifications

Display

Always‑On Retina display with wide‑angle OLEDs and LTPO3
1Hz refresh
Active area (422×514 pixels, 326 pixels per inch)
Flat sapphire crystal display
Up to 3,000 nits peak brightness
1 nit minimum brightness
Night Mode for Apple Watch Ultra faces (Modular Ultra, Wayfinder, Orienteering)

Audio

Three-microphone array with beamforming and wind noise mitigation
Dual speakers
Media playback
Siren

Power and Battery Life

Multi‑day battery life, up to 42 hours of normal use
Up to 72 hours in Low Power Mode
Built-in rechargeable lithium‑ion battery
Fast-charge capable
Up to 80% charge in about 45 minutes
15 minutes for up to 12 hours of normal use
5 minutes for up to 8 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
Customisable Workout Views
Training Load / Workout Effort Tracking
Heart Rate Zones (customisable)
Post‑workout heart rate
VO2 max
Race Route
Pacer
Precision Start using Action button
Stride Length, Ground Contact Time, Cadence, Power 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
Elevation alerts
Topographic maps for thousands of national and regional parks (US only)
Hundreds of curated hikes across all 63 US national parks
Siren

Cycling
Custom workouts
Customisable Workout Views
Training Load / Workout Effort Tracking
Average speed, elevation gained and distance
Bluetooth-compatible with power meters
Functional Threshold Power (with power meter connection)
Live Activity on iPhone
Heart Rate Zones (customisable)
Cadence (rpm), speed (mph), power (watts), power zones (with power meter connection)
Post‑workout heart rate

Swimming
Custom workouts (pool swim) with haptics to cue the next interval
Customisable Workout Views (pool swim, open water swim)
Splits and auto sets
SWOLF score
Automatic stroke and count detection (including kickboard)
Water temperature
Average pace, total distance, heart rate and lengths

Diving
Recreational dive to 40m
Dive computer app (available on the App Store)11
Automatic launch at 1m
Current and maximum depth duration
GPS entry and exit points
Depth gauge
Water temperature sensor

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
and more

Safety

Satellite connectivity (Emergency SOS, Find My)
Emergency SOS
International emergency calling
Siren
Torch
Crash Detection
Fall Detection
Last Emergency Call Availability Waypoint
Noise monitoring
Backtrack

Durability

Water resistance 100m (swim, snorkel, scuba, high-speed water sports) under ISO standard 22810:201015
Dust resistance IP6X under IEC 6052916
EN13319 recreational scuba diving to 40m (±1m accuracy)
Tested to MIL-STD 810H against subsections for altitude, high temperature, low temperature, temperature shock, immersion, freeze with thaw, ice and freezing rain, and shock and vibration

Connectivity

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

L1 and L5 precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS and BeiDou)

Second-generation Ultra Wideband chip17

Apple Pay18
GymKit
Model A3281:
Supports RedCap for 5G19 and LTE20

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, n53)

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, 53)

Support for Apple Watch For Your Kids