watchOS

E20923

mobile operating system smartwatch operating system

watchOS is Apple’s smartwatch operating system that powers the Apple Watch, providing fitness tracking, notifications, and app functionality tightly integrated with iOS and the Apple ecosystem.

Aliases (6)

Statements (80)

Predicate	Object
instanceOf	mobile operating system → smartwatch operating system →
announcedAt	Apple Special Event September 2014 →
announcedBy	Tim Cook →
appDistribution	watchOS App Store →
basedOn	iOS →
developer	Apple Inc. →
family	Apple operating systems →
firstReleaseDate	2015-04-24 →
firstVersion	watchOS 1.0 →
integratesWith	Apple Fitness+ → Apple Health → Apple ecosystem → iOS → iPhone →
kernel	XNU →
kernelType	hybrid kernel →
latestReleaseBranch	watchOS 10 →
license	proprietary software license →
operatingSystemFor	Apple Watch →
packageManager	App Store →
primaryLanguage	Objective-C → Swift →
requiresCompanionAppOn	iPhone →
sourceModel	closed source → with open-source components →
supportsConnectivity	Bluetooth → LTE → NFC → Wi‑Fi →
supportsDevice	Apple Watch SE → Apple Watch Series 1 → Apple Watch Series 2 → Apple Watch Series 3 → Apple Watch Series 4 → Apple Watch Series 5 → Apple Watch Series 6 → Apple Watch Series 7 → Apple Watch Series 8 → Apple Watch Series 9 → Apple Watch Ultra → Apple Watch Ultra 2 →
supportsFeature	Apple Pay → ECG recording → Siri → blood oxygen monitoring → cellular connectivity → complications → emergency SOS → fall detection → fitness tracking → heart rate monitoring → music playback → notifications → sleep tracking → watch faces →
supportsFramework	CoreBluetooth → CoreMotion → HealthKit → SwiftUI → WatchKit →
supportsHealthStandard	blood oxygen saturation measurement → electrocardiogram recording →
supportsInputMethod	Digital Crown → microphone → side button → touchscreen → voice (Siri) →
supportsMode	family setup → low power mode → theater mode → water lock mode →
supportsPlatform	arm64 →
supportsProgrammingLanguage	Objective-C → Swift →
supportsSecurityFeature	data encryption → passcode lock → wrist detection →
updateDistribution	over-the-air update →
userInterface	graphical user interface →

Referenced by (47)

Subject (surface form when different)	Predicate
Apple Inc. → Apple Maps → Apple Safari → Apple Wallet → Apple Watch → Apple hardware → FaceTime → Find My iPhone → Mail → Metal → Safari → Siri → VoiceOver → WebKit → XNU →	operatingSystem
Activation Lock → AirDrop → App Store → Apple Pay → Combine → Find My iPhone → Handoff → HealthKit → JavaScriptCore → Swift (programming language) → Swift Standard Library → SwiftUI → UIKit ("watchOS (via WatchKit integration)") → Universal Clipboard →	platform
Xamarin → Xcode →	supportsPlatform
Apple Worldwide Developers Conference 2020 ("watchOS 7") →	announced
Apple WWDC 2022 →	featuresPlatform
watchOS ("watchOS 1.0") →	firstVersion
VoiceOver →	includedWith
Combine ("watchOS 6") →	introducedWith
watchOS ("watchOS 10") →	latestReleaseBranch
NeXT Inc. →	operatingSystemBasisFor
APFS →	operatingSystemFamily
Objective-C →	runsOn
NeXT Inc. →	successorSoftware
Swift Package Manager →	supports
Apple Neural Engine →	targetPlatform
Apple WWDC 2022 ("watchOS 9") →	unveiled
Darwin →	usedAsFoundationFor
Retina display →	usedInOperatingSystemFamily
FairPlay →	usedOnPlatform