watchOS

watchOS

Una esfera de reloj personalizada en watchOS 6
Desarrollador	Apple Inc.
Escrito en	C C ++ C objetivo Rápido lenguaje ensamblador
Familia OS	Tipo Unix , iOS
Estado de trabajo	Actual
Modelo fuente	Cerrado , con componentes de código abierto
Versión inicial	24 de abril de 2015 ; Hace 6 años (2015-04-24)
Último lanzamiento	7.4.1 [1] (18T201) [2] (3 de mayo de 2021 ; hace 6 días ) [±] (2021-05-03)
Vista previa más reciente	7.5 beta 2 [3] (18T5555c) [4] (30 de abril de 2021 ; hace 9 días ) [±] (2021-04-30)
Objetivo de marketing	Reloj inteligente
Disponible en	40 idiomas [5] [6]
Método de actualización	OTA (a través de iPhone 5 + con iOS 8 .2+)
Plataformas	ARMv8-A (watchOS 5 y posterior) ARMv7-A (watchOS 1 y posterior)
Tipo de grano	Híbrido ( XNU )
Interfaz de usuario predeterminada	Cocoa Touch ( GUI )
Licencia	Software propietario, excepto componentes de código abierto
Página web oficial	www .apple .com / watchos /
Estado de soporte
Soportado

watchOS es el sistema operativo del Apple Watch , desarrollado por Apple Inc. Está basado en iOS , el sistema operativo utilizado por el iPhone y el iPod Touch , y tiene muchas características similares. ^[7] Fue lanzado el 24 de abril de 2015, junto con el Apple Watch, el único dispositivo que ejecuta watchOS. watchOS expone una API llamada WatchKit para uso de desarrolladores.

La segunda versión, watchOS 2, incluía soporte para aplicaciones nativas de terceros y otras mejoras, y fue lanzada el 21 de septiembre de 2015. ^{[8] [9] [10]} La tercera versión, watchOS 3, fue lanzada el 13 de septiembre. 2016 para enfatizar un mejor rendimiento e incluir nuevas esferas de reloj y aplicaciones de stock. La cuarta versión, watchOS 4, se lanzó el 19 de septiembre de 2017. La quinta versión, watchOS 5, se lanzó el 17 de septiembre de 2018 ^[11] para agregar más soporte de terceros y nuevos entrenamientos, junto con el " Walkie-Talkie " característica. ^[12] La sexta versión, watchOS 6, se lanzó el 19 de septiembre de 2019. ^[13]La séptima versión, watchOS 7, se lanzó el 16 de septiembre de 2020 para admitir el lavado de manos y el seguimiento del sueño. ^{[14] [15]}

Descripción general de la interfaz

La pantalla de inicio (renderizada por y también conocida como "Carrusel") ^[7] se compone de iconos de aplicaciones circulares , que se pueden acercar y alejar con la Corona Digital y arrastrar y lanzar tocando la pantalla.

Antes de watchOS 3, Glances brindaba acceso rápido a una vista resumida de las aplicaciones nativas o de terceros más populares utilizadas en Apple Watch. ^[16] La vista Glances se abrió con un gesto de deslizar hacia arriba desde la pantalla del reloj. Con watchOS 3, Glances fue reemplazado por un Centro de control rediseñado, muy parecido al de iOS. El menú de amigos, que se invoca con el botón lateral, ahora actúa como un muelle dedicado para las aplicaciones.

Aparecen diferentes acciones y opciones dependiendo de si el usuario toca o presiona profundamente lo que un Apple Watch detecta con su pantalla sensible a la presión ( Force Touch ). ^[17] Force Touch se eliminó por completo en watchOS 7, y todas las acciones que requieren la función se trasladaron a opciones específicas en la aplicación Configuración oa acciones de pulsación prolongada. ^[18]

Métricas de salud admitidas

Desde sus inicios, watchOS ha admitido un número y una variedad cada vez mayores de métricas de salud para la medición y / o seguimiento. Éstas incluyen:

• ritmo cardiaco
• capacidad aeróbica máxima, también conocida como VO2 máx. (agregada en watchOS 4, ^[19] mejorada en watchOS 7 ^{[20] [21] [22]} )
• electrocardiogram, otherwise known as EKG or ECG (added in watchOS 5.1.2^[23])
• blood oxygen saturation, otherwise known as SpO2 (added in watchOS 7^[20])
• menstrual cycle status (added in watchOS 6^[24])
• sleep duration (added in watchOS 7^[25][26])

HealthKit

Main article: HealthKit

For several years, Apple has been developing its HealthKit product in a bid to change the way people interact with their devices. There is also a conscious attempt to penetrate the lucrative healthcare and wellness industry, which many observers believe to hold a huge growth opportunity for Apple.^[27] This was confirmed by Jony Ive, Apple's former chief designer, in an interview. He said that health was a crucial element in the Apple Watch since the day of its inception and that the developmental trajectory of the hardware and the watchOS were geared towards health-based capabilities.^[28] Ive pointed out that one of the primary apps that shipped with the first watchOS allowed users to track and communicate as well as encourage them to move, exercise, and stand. He said:

Many of us have our phones with us all the time, but they aren't connected to you. Imagine having something this powerful with you at all times, and what opportunities that might present to the user. The opportunity is phenomenal. Particularly when [you] don't understand just where we are today in terms of technology and capability, but where we are headed.^[28]

One of the most recent updates to the watchOS included applications that do not only keep users active but also diagnose illnesses. For example, there is the app called DeepHeart, a deep learning network that can detect atrial fibrillation, hypertension, sleep apnea, and diabetes.^[29] It taps the HealthKit platform to collect data, particularly those collected by the Apple Watch's heart sensor.^[30]

Version history

Legend:	Obsolete	Discontinued	Supported	Current	Beta

watchOS 1

WatchOS 1 was the first version of watchOS to be released. It came with iOS 8.2, instead of the initial release.

La primera versión de watchOS 1 fue la 1.0 y se basó en iOS 8.2. La segunda versión de watchOS 1 fue la 1.0.1 y se basó en la versión 8.3.

Tabla de versiones: watchOS 1.x - Apple Watch
Ver familia: 1er
versión de watchOS	Versión de iOS basada en	Construir	Fecha de lanzamiento	Características
1.0	8.2 [31]	12S507	24 de abril de 2015 ; Hace 6 años (2015-04-24)	Lanzamiento inicial en Apple Watch (primera generación). Interfaz de usuario Iconos de aplicaciones circulares flotantes gratuitos en la pantalla de inicio. Acércate con Digital Crown. 9 caras de reloj: [32] Cronógrafo Color Modular Utilidad Mickey Mouse Simple, movimiento Solar Astronomía 20 aplicaciones de valores: [33] Actividad. Alarma . Calendario . Control remoto de la cámara . Correo . Mapas . Mensajes . Music. Passbook. Phone. Photos. Remote. Settings. Siri. Stocks. Stopwatch. Timer. Weather. Workout. World Clock.
1.0.1[34]	8.3[31]	12S632	May 19, 2015; 5 years ago (2015-05-19)	Display support for new Emoji characters. Notification screen UI tweaks. Improved performance: Free floating Circular app icons in home screen. Zoom in with Digital Crown. Siri. Measuring stand activity. Calculating calories for indoor cycling and rowing workouts. Distance and pace during outdoor walk and run. Accessibility. Third-party apps. Elevación de muñeca (más sensible a las elevaciones de muñeca de la vida real). Soporte adicional de idiomas: Portugués Brasileño. Danés. Holandés. Sueco. Ruso. Tailandés. Turco. Correcciones de seguridad [35]

watchOS 2

Tabla de versiones: watchOS 2.x - Apple Watch [36]
Ver familia: 1er
versión de watchOS	Versión de iOS basada en	Construir	Fecha de lanzamiento	Características
2,0 [37]	9,0 [31]	13S344	21 de septiembre de 2015 ; Hace 5 años (2015-09-21)	Nuevas caras del reloj Rostro de lapso de tiempo: Hong Kong, Londres, Mack Lake, Nueva York, Shanghai, París Caras de álbumes de fotos y fotos compatibles con Live Photos Nueva función de viaje en el tiempo donde puede ver eventos pasados ​​y futuros Modo de mesita de noche 9 nuevos colores para personalizar Nuevo rostro modular multicolor Soporte de complicaciones de aplicaciones de terceros Siri Soporte de ejercicios y mapas Soporte para llamadas de audio FaceTime y respuesta por correo electrónico Soporte HomeKit Soporte agregado en los siguientes países: Austria, Bélgica, Noruega Actividad y entrenamiento Los entrenamientos realizados en aplicaciones de terceros se incluirán en los anillos de actividad. Compartir soporte desde la aplicación Actividad en iPhone Logros interactivos Resumen semanal Las notificaciones de actividad ahora se pueden silenciar por un día Los entrenamientos ahora se pueden guardar automáticamente Apple Pay y Wallet Soporte de tarjetas Discover Soporte para tarjetas de recompensa, tarjetas de crédito y débito de la tienda Los pases ahora se pueden agregar desde aplicaciones de terceros Amigos Ahora puede agregar más de 12 amigos a su reloj Soporte de grupos Soporte de bocetos multicolores Soporte de emoji animado Mapas Nueva vista de transporte público en ciudades seleccionadas Ahora se puede mostrar la lista de direcciones Soporte de carteles de la estación con información de salida Música Soporte técnico de New Beats 1 Radio Nuevo botón de reproducción rápida para Apple Music Miscellaneous You can now reply to emails right from your Watch using dictation, emoji, or smart replies Support for FaceTime audio calls Support for Wi-Fi calling Activation Lock – No one can activate an Apple Watch without a proper Apple ID and password New system languages: English (India), Finnish, Indonesian, Norwegian, Polish Dictation support extended to include the following languages: Dutch (Belgium) English (Ireland, Philippines, South Africa) French (Belgium) German (Austria) Spanish (Chile, Colombia) Smart replies support extended to include the following languages: Traditional Chinese (Hong Kong, Taiwan) Danish Dutch English (New Zealand, Singapore) Japanese Korean Swedish Thai Developer Native SDK support 3rd-party apps can now access the accelerometer, heart rate sensor, microphone, Taptic Engine, and Digital Crown You can now play videos directly on your Watch You can now run apps without your iPhone with a Wi-Fi connection Complications for watch faces support Support for Workouts from 3rd party apps – Metrics will count toward the Activity rings as well as included in the Activity app on iPhone
2.0.1[37]	9.1	13S428	October 21, 2015; 5 years ago (2015-10-21)	New emoji characters Resolved: Software updates stalling Resolved: Battery performance deteriorating Resolved: iPhone calendar events not syncing to Apple Watch Resolved: Location information not updating Resolved: Instability with Live Photo on the Photos watch face Resolved: Heart sensor is on forever when Siri is used to help measure your heart rate
2.1[37]	9.2	13S661	December 8, 2015; 5 years ago (2015-12-08)	New system languages: Arabic, Czech, Greek, Hebrew, Hungarian, Malay, Portuguese (Portugal), Vietnamese Right-to-left language support In Arabic, switch between Latin and Hindi numerals New Complication for Islamic and Hebrew calendars Siri support extended to include Arabic (Saudi Arabia, United Arab Emirates) Dictation support extended to include the following languages: Arabic (Saudi Arabia, United Arab Emirates) English (Malaysia) Czech Greek Hebrew Hungarian Portuguese (Portugal) Vietnamese Resolved: Events not updating in the Calendar complication Resolved: Power Reserve mode not working correctly Resolved: 3rd-party apps not launching Resolved: 3rd-party app icons not displaying correctly Resolved: System instability when changing display language
2.2[37]	9.3	13V144	March 21, 2016; 5 years ago (2016-03-21)	You can now pair 2+ Apple Watches to a single iPhone New Nearby function in Maps New system languages: Catalan, Croatian, Slovak, Romanian, Ukrainian Dictation support extended to include the following languages: Catalan Croatian Slovak Romanian Ukrainian English (Saudi Arabia, UAE, and Indonesia) Siri support extended to include Malay, Finnish, and Hebrew Background heart rate measurements have their frequency increased when you're stationary
2.2.1[37]	9.3.2	13V420	May 16, 2016; 4 years ago (2016-05-16)	General performance and stability improvements.
2.2.2[37]	9.3.3	13V604	July 18, 2016; 4 years ago (2016-07-18)	General performance and stability improvements.

watchOS 3

Table of versions: watchOS 3.x – Apple Watch [38]
Watch family: 1st Series 1 Series 2
watchOS version	iOS version based on	Build	Release date	Features
3.0	10.0	14S326	September 13, 2016; 4 years ago (2016-09-13)	Initial Release on Apple Watch Series 1 (Dual-Core) and Apple Watch Series 2 (Dual-Core) Navigation Favorite apps in Dock Apps in Dock updates with up-to-date information on launch Dock can contain up to 10 apps Simple switch to different watch face with a swipe Control Center can be toggled with a swipe up New Watch faces Minnie Mouse face Activity faces Numerals faces Complications support for Photo, Photo Album, Timelapse, and Motion faces New Complications: Workout, Music, and Messages, etc. Face Gallery in Apple Watch app on iPhone 3rd-party Complications support Activity Share and compare activity rings Activity progress notifications for a person you have shared your activity progress with Smart replies for above notifications New "Sharing" tab on Activity app on iPhone Workout Quick start Customizable metrics view Gestures support for pausing, resuming, or marking segments Support for "Other" workouts not listed in built-in workout types Auto-pause in running workouts for inactivity Siri support Route maps with a speed indicator (Outdoor workouts only) For Wheelchairs Activity rings support for people using a wheelchair Pushes now contribute to the move ring Stand ring and "Time to Stand" notification substituted with Roll ring and "Time to Roll" notification Outdoor Run or Walk pace workouts Breathe app New app for breathing sessions Visualization and haptics indicate when to inhale or exhale Adjustments for session length and amount of breaths per minute Summary with heart rate "Time to Breathe" notifications Weekly Summary Communication Full-screen effects for celebrations Tap to quick reply Animations for handwritten messages Send built-in or 3rd party stickers Ability to view secret messages Replies now available in Messages and Mail notifications New and redesigned emojis Scribble Write directly on Apple Watch and it will automatically convert to text Scroll through predictions with Digital Crown Available in English, Simplified Chinese, and Traditional Chinese Emergency SOS You can now call emergency services by pressing and holding the side button Your SOS contacts will be notified with your location You can also display your Medical ID stored on your Watch Emergency numbers are automatically adjusted per your location Home New app to control accessories through HomeKit You can now control all your accessories directly from your wrist IP camera support: Watch live video with controls and notifications directly on your Watch Miscellaneous New Reminders app New Find My Friends app Apple Pay support in 3rd-party apps New controls in the Calendar app: You can now delete events or switch calendars FaceTime audio calls support Search for Settings on Apple Watch app on iPhone New remote camera controls: Flash, Live Photos, HDR, Zoom, Burst, and facing New Siri languages: Spanish (Chile), Cantonese, English (Ireland), English (South Africa)
3.1	10.1	14S471	October 24, 2016; 4 years ago (2016-10-24)	Bubbles and fullscreen effects on Messages can now be replayed Reduce Motion of Messages effects Resolved: "Timer complete" notification being delivered twice Resolved: Apple Watch Series 2 not fully charged Resolved: Disappeared Activity rings on watch faces Resolved: Force Touch options not appearing in 3rd-party apps
3.1.1	10.2	14S883	December 12, 2016; 4 years ago (2016-12-12)	Update withdrawn due to reports of Apple Watches no longer working after the update[39]
3.1.3	10.2.1	14S960	January 23, 2017; 4 years ago (2017-01-23)	Resolved: Bricking Apple Watches after updating to watchOS 3.1.1 Includes fixes from watchOS 3.1.1, including... Resolved: Contact names not appearing in notifications and the Messages app Resolved: Unable to respond notifications Resolved: Stocks Complication not updating on watch faces Resolved: Activity rings not displaying on Activity watch faces Resolved: Dials of Analog watch faces not displaying after changing the temperature unit in the Weather app Resolved: Maps app still launching after navigation has ended Resolved: Month view of Calendars app showing incorrect dates
3.2	10.3	14V249	March 27, 2017; 4 years ago (2017-03-27)	Siri now works with 3rd-party apps with features including Start a workout Send messages Make payments Book rides Theater Mode New Scribble languages: French, Spanish, Italian Sync progress for music playlists is now displayed in the Apple Watch app on iPhone
3.2.2	10.3.2	14V485	May 15, 2017; 3 years ago (2017-05-15)	Bug fixes.
3.2.3	10.3.3	14V753	July 19, 2017; 3 years ago (2017-07-19)	Bug fixes. Final version to support iPhone 5 and iPhone 5C

watchOS 4

Table of versions: watchOS 4.x – Apple Watch [40]
Watch family: 1st Series 1 Series 2 Series 3 Limited support on the Apple Watch (1st generation). Some features are not supported on the Apple Watch Series 1 and Apple Watch Series 2
watchOS version	iOS version based on	Build	Release date	Features
4.0	11.0	15R372	September 19, 2017; 3 years ago (2017-09-19)	Initial release on Apple Watch Series 3 Drops support for iPhone 5 and iPhone 5C New Watch faces Siri face with updates based on time, location, and daily routines Toy Story face with animated Toy Story characters Kaleidoscope face with static images turning into patterns Siri, News, Heart Rate, Now Playing, Messages Complications Activity Personalized notifications Monthly challenges Full Screen animations for achievements and rings closed Workout metrics included in replies for Activity Sharing notifications Workout App completely redesigned High Intensity Interval Training workout support Multiple workouts in a single session support Auto sets for Pool Swim workouts Synced music playlist support when starting workouts (Apple Watch 1st gen not supported) Music controls right inside the app Do Not Disturb can be automatically turned on when starting workouts Heart Rate Graphs for all-day heart rate New measurements including resting rate, walking average, workout average, workout high, recovery, and Breathe sessions High Heart Rate notifications support (Apple Watch 1st gen not supported) New Heart Rate data on iPhone including Heart Rate Variability and VO2 max Music App completely redesigned Multiple playlists sync support for local playback with Bluetooth headphones Apple Music curated playlists sync support, includes Heavy Rotation, My New Music Mix, and My Favorites Mix Miscellaneous News app added Flashlight and Safety Light can be toggled through Control Center Recent used apps in Dock App home screen in alphabetical view Gestures support in Mail Dialer pad right inside Phone app Conflicts for Calendar invites can now be displayed New language for Scribble: German New timers: sub-minute and repeating Recent locations and suggestions in Maps Contacts in Smart Reply, includes location
4.0.1	11.0	15R654	October 4, 2017; 3 years ago (2017-10-04)	Apple Watch Series 3 (GPS + Cellular) only Resolved: Apple Watches joining unauthenticated Wi-Fi networks
4.1	11.1	15R846	October 31, 2017; 3 years ago (2017-10-31)	Music streaming support on Apple Music or iCloud Music Library (Apple Watch Series 3 only) New Radio app: Beats 1 Live Radio, custom stations, and expert-curated stations (Apple Watch Series 3 only) Find, discover, and play songs, albums, or albums using Siri Fitness data syncing support for more accurate metrics on GymKit-enabled treadmills, ellipticals, stair steppers, and indoor bikes Ability to disconnect from a Wi-Fi network right in Control Center (Apple Watch Series 3 GPS + Cellular model only) Resolved: Heart Rate notifications erroneously delivered to users who have not enabled the feature Resolved: Current Stand Hour indicator not correctly displayed Resolved: Haptics not delivered for silent alarms Resolved: Apple Watch (1st gen) not charging Resolved: Sunrise / Sunset complication not appearing on watch faces Mandarin Chinese now set as default dictation language in China
4.2	11.2	15S102	December 5, 2017; 3 years ago (2017-12-05)	Apple Pay Cash support (US only) HomeKit sprinklers and faucet support 3rd-party app Workouts: distance, average Speed, number of runs, elevation descended for downhill snow sports (Apple Watch Series 3 only) Resolved: Crash when asking Siri about weather Resolved: Scrolling disabled in the Heart Rate app Resolved: Simultaneous timers and alarms not being independently dismissed
4.2.2	11.2	15S542	January 23, 2018; 3 years ago (2018-01-23)	This update includes improvements and bug fixes.
4.2.3	11.2	15S600b	February 19, 2018; 3 years ago (2018-02-19)	Fixes an issue where using certain character sequences could cause apps to crash.
4.3	11.3	15T212	March 29, 2018; 3 years ago (2018-03-29)	HomePod volume and playback control support Regaining control of music on iPhone Multiple orientation support on Nightstand mode Activity rings progress and new songs to Apple Music mixes are now shown on the Siri watch face Resolved: Activity achievements incorrectly awarded Resolved: Siri music commands not working for some audio
4.3.1	11.4	15T567	May 29, 2018; 2 years ago (2018-05-29)	Fixes an issue which caused Apple Watch to sometimes remain at the Apple Logo during startup for some users.
4.3.2	11.4.1	15U70	July 9, 2018; 2 years ago (2018-07-09)	Final release supported on Apple Watch (1st generation) This update includes improvements and bug fixes.

watchOS 5

WatchOS 5 was first shown to the public at the San Jose WWDC developer conference held by Apple. It had an instant watch-to-watch Walkie-Talkie mode.^[41] With this release, Apple dropped support for the first generation Apple Watch.

Table of versions: watchOS 5.x – Apple Watch [42]
Watch family: Series 1 Series 2 Series 3 Series 4 Some features are not supported on the Apple Watch Series 1 and Apple Watch Series 2.
watchOS version	iOS version based on	Build	Release date	Features
5.0	12.0	16R364	September 17, 2018; 2 years ago (2018-09-17)	Initial Release on Apple Watch Series 4 Drops support for the Apple Watch (1st generation) Workout Compete with Friends notifications Auto detect workout and notification to turn off workout when done New workouts: Yoga and Hiking Pace Alerts and Cadence Podcasts New app for watchOS Download episodes of podcasts for listening Stream your favorite podcasts on the go (Series 3 and later only) Walkie-Talkie A new watchOS app that allows you to do FaceTime Audio calls similar to talking on a walkie-talkie Siri Watchface adds 3rd-party access to Siri Raise to Speak. No longer need to say "Hey Siri" to activate (Series 3 and later only) Integrate with shortcuts like "I am on my way home" and Siri will start playing your favorite playlist on the way home Notifications Grouped notifications More actions you can do with Notifications Can view webpages from iMessages Do Not Disturb Can schedule Do Not Disturb events when leaving a location or just for a specific time period Student ID Cards
5.0.1	12.0	16R381/16R382	September 27, 2018; 2 years ago (2018-09-27)	Improvements and bug fixes
5.1	12.1	16R591	October 30, 2018; 2 years ago (2018-10-30)	Update withdrawn due to reports of Apple Watches no longer working after the update[43]
5.1.1	12.1	16R600	November 5, 2018; 2 years ago (2018-11-05)	Improvements and bug fixes Addresses a problem in the WatchOS 5.1 update leading to non-functional Apple Watches. Improvements to Series 4 automatic fall detection. Resolves a problem with completing setup of Walkie-Talkie. Resolves a problem with sending and receiving invitations for Walkie-Talkie. Resolves missing earned Activity awards.
5.1.2	12.1.1	16S46	December 6, 2018; 2 years ago (2018-12-06)	New ECG app for Apple Watch Series 4 (US and US territories only) Irregular rhythm notification (US and US territories only) AFiB notification Other improvements and bug fixes
5.1.3	12.1.3	16S535	January 22, 2019; 2 years ago (2019-01-22)	This update includes improvements and bug fixes.
5.2	12.2	16T225	March 27, 2019; 2 years ago (2019-03-27)	ECG app extended to Austria, Belgium, Denmark, Finland, France, Germany, Greece, Hong Kong, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Romania, Spain, Sweden, Switzerland, and the UK Irregular rhythm notification extended to countries listed above 2nd gen AirPods support Real-time text support for phone calls
5.2.1	12.3	16U113	May 13, 2019; 23 months ago (2019-05-13)	ECG app extended to Croatia, Czech, Iceland, Poland, and Slovakia Irregular rhythm notification extended to countries listed above New Pride watch face Other bug fixes
5.3	12.4	16U569	July 22, 2019; 21 months ago (2019-07-22)	ECG app extended to Canada and Singapore Irregular rhythm notification extended to countries listed above Resolved: Security fix for Walkie-Talkie app that could enable the owner's iPhone to be eavesdropped[44]
5.3.1	12.4.1	16U600	August 26, 2019; 20 months ago (2019-08-26)	Re-patches a security vulnerability that was accidentally unpatched in the previous update
Post-watchOS 6 Updates for watches paired with an iOS 12.x iPhone (to support iPhone 5s and iPhone 6)
5.3.2	12.4.2	16U611	September 26, 2019; 19 months ago (2019-09-26)	Apple Watch Series 1 and Apple Watch Series 2 only Security update for Series 1 and Series 2 watches[45]
5.3.3	12.4.3	16U620	October 29, 2019; 18 months ago (2019-10-29)	Apple Watch Series 1 and Apple Watch Series 2 only[citation needed] Important security updates
5.3.4	12.4.4	16U627[46]	December 10, 2019; 16 months ago (2019-12-10)	Security update for Series 1, 2, 3, and 4 watches[47]
5.3.5	12.4.5	16U652[48]	February 18, 2020; 14 months ago (2020-02-18)	Update for Series 1, 2, 3, and 4 watches with heart rhythm notification bug fix[49]
5.3.6	12.4.6	16U662	March 24, 2020; 13 months ago (2020-03-24)	Important security updates[50]
5.3.7	12.4.7	16U674	May 18, 2020; 11 months ago (2020-05-18)	Improvements and bug fixes[50]
5.3.8	12.4.8	16U680	July 15, 2020; 9 months ago (2020-07-15)	Improvements and bug fixes[50]
5.3.9	12.4.9	16U693	November 5, 2020; 6 months ago (2020-11-05)	Improvements and bug fixes[50]

watchOS 6

Apple announced a new version of watchOS that would contain features such as the App Store, a calculator with tip tools, an audiobooks app, noise level monitoring, and Apple's Voice Memos app.^[51][52][53] It also enables special games that can only be played on the Watch interface. However, watchOS 6 has limited support on Apple Watch Series 1 and 2.

Table of versions: watchOS 6.x – Apple Watch
Watch family: Series 1 Series 2 Series 3 Series 4 Series 5 Limited support on the Apple Watch Series 1 and Apple Watch Series 2.
watchOS version	iOS version based on	Build	Release date	Features
6.0	13.0	17R575	September 19, 2019; 19 months ago (2019-09-19)	Initial Release on Apple Watch Series 5 Not released for Apple Watch Series 1 and 2 Drops support for iPhone 5s, iPhone 6 and iPhone 6 Plus Cycle Tracking New Cycle Tracking app for tracking menstrual cycle and fertility metrics Notifications predicting a person's next menstrual cycle and fertile window. Noise (Series 4 or later only) New Noise app for detecting decibel levels in your surroundings. Notifications can be pushed when it detects that the noise in your surrounding is too high. Voice Memos New Voice Memos app for recording and listening to voice memos directly on Apple Watch Synced across all your devices as well. Audiobooks Now you can sync up to 5 hours of audiobooks to your Apple Watch Stream them when your Watch is connected via Wi-Fi or cellular App store New built-in App Store where you can find and download apps for your Watch. Supports Sign in with Apple Activity Trends Activity Trends in Activity app which includes all three activity rings, stand minutes, walking distance, walking pace, running pace, and VO2 max. These are compared with data averaged over the last 90 days to the wearer's performance over the last year. Tips are given if a single trend is going down. Workout New elevation metrics for Outdoor Run, Outdoor Walk, Outdoor Cycle, and Hiking workouts (Series 2 or later only) Stopwatch app can now be viewed on your watch face during workouts GymKit support for True and Woodway Siri Now you can identify songs directly on your Watch—with the ability to add identified songs to your Apple Music library New Siri Web Search—shows up to 5 online results with the ability to view optimized Web content. Siri integration into the redesigned Find People app Watch Faces New Faces Numerals Mono and Numerals Duo (Available in Arabic, Arabic Indic, Roman numerals, and Devanagari) Meridian—black or white dial which fills the screen and includes 4 complications (Series 4 or later only) Gradient—Design dynamically changes as time passes. Available in full screen or circular with 5 complications (Series 4 or later only) California—Supports multiple numeral styles in Roman, Arabic, and Devanagari in fullscreen or circular (Series 4 or later only) Solar Dial—Depicts the Sun's path in circular form across a 24-hour dial (Series 4 or later only) Modular Compact—With many complications and the option to choose between analog or digital time (Series 4 or later only) Tap to speak on all watch faces, supports up to 30 languages Receive and customize time-keeping chimes (An alert on the hour, every half hour or every 15 minutes, either with haptics or customizable chimes) Now you can reorder your Watch faces directly on your Watch New complications Audiobooks Calculator Cellular connectivity Cycle Tracking Noise Wind Rain Voice memos New monochrome complications for Infograph and Infograph Modular faces Miscellaneous New Calculator app with the ability to calculate tips and split checks Support for custom stations in the Podcasts app Smart Guidance and spoken navigation in Maps Redesigned Now Playing app with Apple TV Remote controls Personalized music picks in the For You tab Support for automatic software updates Redesigned Walkie-Talkie app Redesigned Find People app which allows you to add friends, set notifications, and change settings directly on your Watch Redesigned Reminders app with shared lists, subtasks, and the ability to add new reminders More settings for Accessibility, Workout, and Health
6.0.1	13.1	17R604/17R605	September 30, 2019; 19 months ago (2019-09-30)	Not released for Apple Watch Series 1 and 2 Improvements and bug fixes Resolves an issue where the Mickey Mouse and Minnie Mouse watch faces do not speak time. Addresses an issue where the calendar complication may not display events. Fixes a bug that could result in a loss of display calibration data.
6.1	13.2	17S84	October 29, 2019; 18 months ago (2019-10-29)	First version of watchOS 6.x to support Apple Watch Series 1 and 2 Support for AirPods Pro Other improvements and bug fixes Brings watchOS 6 to Apple Watch Series 1 and Series 2
6.1.1	13.3	17S449	December 10, 2019; 16 months ago (2019-12-10)	Important security updates
6.1.2	13.3.1	17S796	January 28, 2020; 15 months ago (2020-01-28)	Important security updates
6.1.3		17S811	February 18, 2020; 14 months ago (2020-02-18)	Heart rhythm notification bug fix
6.2	13.4	17T529	March 24, 2020; 13 months ago (2020-03-24)	Brings ECG app and irregular heart rhythm notifications to Chile, Turkey, and New Zealand Brings in-app purchases to Apple Watch apps Fixes music playback issues when switching from Wi-Fi to Bluetooth
6.2.1	13.4.1	17T530	April 8, 2020; 13 months ago (2020-04-08)	Fixes an issue that prevented FaceTime audio calls with devices running iOS 9.3.6 and earlier or Macs running OS X El Captain 10.11.6 and earlier from working
6.2.5	13.5	17T608	May 18, 2020; 11 months ago (2020-05-18)	ECG app on Apple Watch Series 4 or later now available in Saudi Arabia Irregular heart rhythm notifications now available in Saudi Arabia
6.2.6	13.5.1	17T620	June 1, 2020; 11 months ago (2020-06-01)	Important security updates
6.2.8	13.6	17U63	July 15, 2020; 9 months ago (2020-07-15)	ECG app on Apple Watch Series 4 or later now available in Bahrain, Brazil, and South Africa Irregular heart rhythm notifications now available in Bahrain, Brazil, and South Africa Digital car keys support for Apple Watch Series 5
	13.6.1		August 12, 2020; 8 months ago (2020-08-12)
	13.7		September 1, 2020; 8 months ago (2020-09-01)
6.2.9			November 5, 2020; 6 months ago (2020-11-05)
6.3			December 14, 2020; 4 months ago (2020-12-14)

watchOS 7

Apple announced watchOS 7 at the 2020 Worldwide Developers Conference on June 22, 2020. With watchOS 7, Apple dropped support for Apple Watch Series 1 and 2. However, watchOS 7 has limited support on Apple Watch Series 3.

Table of versions: watchOS 7.x – Apple Watch
Watch family: Series 3 Series 4 Series 5 SE Series 6 Limited support on the Apple Watch Series 3.
watchOS version	iOS version based on	Build	Release date	Features
7.0	iOS 14.0	18R382	September 16, 2020; 7 months ago (2020-09-16)	Drops support for the Apple Watch Series 1 and Apple Watch Series 2 Watch Faces Updated Faces Chronograph Pro gains a tachymeter (Series 4 or later only) X-Large adds support for one large complication Photos face provides colour filters for pictures and more customization options Updated colours for many watch faces Complications Apps may now include more than one complication New and/or updated Sleep, Shortcuts, Camera Remote, Moon Phase and World Clock complications Watch Face Sharing Ability to share custom Watch Faces through Mail, Messages, or posting a link Sleep Tracking Apple Watch uses the accelerometer to measure sleep See logged sleep, manage schedules and set alarms in the new Sleep app New alarm sounds and haptics Wind Down mode Sleep Mode automatically enables Do Not Disturb and disables Raise to Wake Reminders to charge your Apple Watch in the evening if below 30% charge Notifications on iPhone when Apple Watch is finished charging Wake up screen displays after your alarm, showing the weather and your battery level Activity Workouts New Dance, Functional Strength Training, Core Training and Cooldown workouts Mobility Metrics Support for low-range cardio fitness, walking speed, stair-descent speed, stair-ascent speed, six-minute walk distance, double support time, step length, and asymmetry metrics in the Health app on iPhone, tracked by Apple Watch Exercise and Stand goals can now be modified in addition to the Move goal Activity app renamed Fitness app on iPhone Maps Cycling Directions Cycling specific directions in Maps in supported areas Choose routes based on intensity and duration Alerts about upcoming stairs and dismount locations Handwashing (Series 4 or later only) Automatic handwashing detection with a 20 second timer Handwashing reminder when arriving home Siri Translation support for 10 languages Support for Announce Messages with Siri New Siri UI New Apps New Shortcuts app, and ability to choose visible shortcuts on Apple Watch from iPhone New Memoji app with support for editing and creating new Memoji (Series 4 or later only) Dictation Dictation is processed on-device (Series 4 or later only) Privacy Microphone icon appears onscreen when in use Headphones Ability to set a decibel volume limit for headphones Reminders to reduce volume if above World Health Organization's limits Family Setup (Cellular Series 4 or later only, in supported countries) Pair Apple Watches for family members that do not have their own iPhone, aimed at children and seniors Activity metrics are more accurate for children, and Apple Watch now measures move minutes rather than active calories Apple Cash Family allows children to receive money using Apple Cash Enhanced parental controls, including approved contacts and apps, and Schooltime Schooltime Displays a standard yellow watch face and turns on Do Not Disturb to limit distractions Can be manually enabled through the Control Centre, or scheduled and remotely enabled for child watches using Family Setup
7.0.1	iOS 14.0.1	18R395	September 24, 2020; 7 months ago (2020-09-24)	Fixes an issue where some payment cards in Wallet were disabled for some users
7.0.2		18R402	October 12, 2020; 6 months ago (2020-10-12)	Fixes an issue where the battery drained too quickly Fixes an issue that blocked access to the ECG app
7.0.3		18R410	October 19, 2020; 6 months ago (2020-10-19)	Fixes an issue that causes unexpected restarts with Series 3 watches
7.1	iOS 14.2	18R590	November 5, 2020; 6 months ago (2020-11-05)	Headphone audio level notifications Adds ECG and irregular heart rhythm notifications support in South Korea and Russia Fixed: Unlocking Mac with Apple Watch fails Fixed: Always-on display failure on Apple Watch Series 6
7.2		18S564	December 14, 2020; 4 months ago (2020-12-14)	Adds support for Apple Fitness+ (Australia, Canada, Ireland, New Zealand, UK, and US only) Cardio fitness notifications AFiB notifications now available at heart rates above 100 BPM Adds ECG support in Taiwan Adds braille displays with VoiceOver support Family Setup now available in Bahrain, Canada, Norway, and Spain
7.3		18S801	January 26, 2021; 3 months ago (2021-01-26)
7.3.1		18S811	February 15, 2021; 2 months ago (2021-02-15)
7.3.2		18S821	March 8, 2021; 2 months ago (2021-03-08)
7.3.3		18S830	March 26, 2021; 44 days ago (2021-03-26)
7.4		18T195	April 26, 2021; 13 days ago (2021-04-26)
7.4.1		18T201	May 3, 2021; 6 days ago (2021-05-03)
7.5 beta 2		18T5555c	April 30, 2021; 9 days ago (2021-04-30)

See also

• tvOS
• macOS
• iOS
• Wear OS, Android equivalent

References

1. Slivka, Eric (May 3, 2021). "Apple Releases iOS and iPadOS 14.5.1 With Fixes for App Tracking Transparency Bug, WebKit Security Issues". MacRumors. Retrieved May 3, 2021. There is also a companion watchOS 7.4.1 update for Apple Watch and an iOS 12.5.3 update for older iPhone and iPad devices that don't support Apple's latest operating system versions.
2. "watchOS 7.4.1 (18T201) - Releases - Apple Developer". Apple Developer. Apple Inc. May 3, 2021. Retrieved May 3, 2021.
3. Clover, Juli (April 30, 2021). "Apple Seeds Second Beta of watchOS 7.5 to Developers". MacRumors. Retrieved April 30, 2021.
4. "watchOS 7.5 beta 2 (18T5555c) - Releases - Apple Developer". Apple Developer. Apple Inc. April 30, 2021. Retrieved April 30, 2021.
5. "How to change the language on an Apple Watch, and make it differ from the language on your paired iPhone". Business Insider. October 8, 2019. Your Apple Watch is designed to "mirror" the language used on your iPhone, so by default it'll use whichever language is set on that device, but you can make the two devices differ.
6. "Apple – iPhone XS – Technical Specifications". Apple. Archived from the original on January 4, 2019. Retrieved January 4, 2019.
7. "Apple Watch runs 'most' of iOS 8.2, may use A5-equivalent processor". AppleInsider. Retrieved April 25, 2015.
8. "Apple announces watchOS 2 with third-party Apple Watch apps, new Timepieces, video playback, much more". 9to5Mac. June 8, 2015. Retrieved June 8, 2015.
9. "watchOS 2 final version released for Apple Watch users". Retrieved September 21, 2015.
10. "Apple's watch OS 2 is now live following bug delay". CNET. Retrieved September 23, 2015.
11. Juli Clover (September 17, 2018). "Apple Launches watchOS 5 With Walkie-Talkie, Apple Podcasts, Siri Shortcuts, New Watch Faces, Raise to Speak and More". MacRumors. Retrieved September 17, 2018.
12. "watchOS 5 adds powerful activity and communications features to Apple Watch". Apple Newsroom (Press release). Retrieved June 5, 2018.
13. Juli Clover (September 19, 2019). "Apple Releases watchOS 6 With Dedicated App Store, New Watch Faces, Noise Monitoring App and More". MacRumors. Retrieved September 19, 2019.
14. "watchOS 7 adds significant personalization, health, and fitness features to Apple Watch" (Press release). Apple Inc. June 22, 2020.
15. Orellana, Vanessa Hand (July 21, 2020). "10 new tricks WatchOS 7 will soon bring to your Apple Watch". CNET.
16. "How To Use and Organize Apple Watch Glances". iPhoneTricks. Retrieved April 27, 2015.
17. "Apple Watch – Technology". Apple. Retrieved December 26, 2014.
18. "Apple Ending Support for Force Touch on Apple Watch With watchOS 7". iPhone in Canada Blog. June 24, 2020. Retrieved July 14, 2020.
19. Ng, Gary (June 8, 2017). "Apple Watch Calculates VO2 Max in watchOS 4 Beta". iPhone in Canada. Retrieved October 20, 2020.
20. Bonifacic, Igor (September 15, 2020). "Apple adds blood oxygen monitoring to the Watch Series 6". Engadget. Retrieved October 20, 2020.
21. Hand Orellana, Vanessa (September 8, 2020). "WatchOS 7: Apple Watch will soon be able to measure your fitness level as you age". CNET. Retrieved October 20, 2020.
22. Comstock, Jonah (September 15, 2020). "Apple adds SpO2 & V02 Max to Apple Watch Series 6, and launches three new studies". mobiHealthNews.
23. Hand Orellana, Vanessa (July 23, 2019). "Apple Watch ECG vs. hospital EKG: Not the results I was expecting". CNET. Retrieved October 20, 2020.
24. Mitroff, Sarah (September 19, 2019). "Apple WatchOS 6: How to track your menstrual cycle and fertility". CNET. Retrieved October 20, 2020.
25. Stein, Scott (August 14, 2020). "Apple WatchOS 7 sleep tracking: What it can and can't do". CNET. Retrieved October 20, 2020.
26. "watchOS 7 adds significant personalization, health, and fitness features to Apple Watch". Apple. Inc. June 22, 2020.
27. "Apple Is Going After The Health Care Industry, Starting With Personal Health Data". CB Insights Research. September 20, 2017. Retrieved May 28, 2018.
28. Phelan, David. "Apple Watch Secrets Revealed By Jony Ive, Health A Big Focus". Forbes. Retrieved May 28, 2018.
29. "Apple Watch's heart rate sensor can detect diabetes, Cardiogram study finds". Macworld. Retrieved May 28, 2018.
30. Ballinger, Brandon; Hsieh, Johnson; Singh, Avesh; Sohoni, Nimit; Wang, Jack; Tison, Geoffrey H.; Marcus, Gregory M.; Sanchez, Jose M.; Maguire, Carol; Olgin, Jeffrey E.; Pletcher, Mark J. (2018). "DeepHeart: Semi-Supervised Sequence Learning for Cardiovascular Risk Prediction". AAAI Conference on Artificial Intelligence: 2079–2080. arXiv:1802.02511. Retrieved May 22, 2020.
31. "Apple Watch Firmware". Retrieved May 19, 2015.
32. "Apple Watch Timekeeping". Retrieved March 9, 2015.
33. "Apple Watch Built-in Apps". Retrieved June 29, 2015.
34. "watchOS 1.01 information". Apple Inc. Retrieved May 24, 2016.
35. "About the security content of watch OS 1.0.1 – Apple Support". Apple. Retrieved June 29, 2015.
36. "Download watchOS 2.0 – 2.2.2 Information". support.apple.com. Retrieved June 22, 2019.
37. "watchOS 2.x information". Apple Inc. Retrieved May 24, 2016.
38. "Download watchOS 3.0 – 3.2.3 Information". support.apple.com. Retrieved June 22, 2019.
39. "Apple has temporarily pulled the watchOS 3.1.1 update due to reports of it bricking devices". 9to5Mac. December 14, 2016. Retrieved December 14, 2016.
40. "About watchOS 4 Updates". Apple Support. Retrieved June 22, 2019.
41. Alfred Ng; Shara Tibken (September 12, 2018). "Apple Watch Series 4 starts at $399, packs larger displays and EKG sensor". CNET.
42. "About watchOS 5 Updates". Apple Support. Retrieved June 22, 2019.
43. Kelion, Leo (October 31, 2018). "Apple Watch owners asked to return devices for repair after update glitch". BBC News. Retrieved October 31, 2018.
44. Clover, Juli (July 22, 2019). "Apple's Walkie-Talkie Apple Watch App Works Again Following iOS 12.4 and watchOS 5.3 Release". MacRumors. Retrieved July 23, 2019.
45. "About the security content of watchOS 5.3.2". Apple Inc.
46. "watchOS 5.3.4 (16U627) - Releases - Apple Developer". Apple Developer. Apple Inc. December 10, 2019. Retrieved December 10, 2019.
47. "About the security content of watchOS 5.3.4". Apple Inc.
48. "watchOS 5.3.5 (16U652) - Releases - Apple Developer". Apple Developer. Apple Inc. February 18, 2020. Retrieved February 18, 2020.
49. Clover, Juli (February 18, 2020). "Apple Releases watchOS 6.1.3 Update With Heart Rhythm Notification Bug Fix". MacRumors. Retrieved February 18, 2020.
50. "About watchOS 5 Updates". July 15, 2020. Retrieved July 17, 2020.
51. Heather Kelly (June 3, 2019). "Everything Apple announced at WWDC, from Apple sign-in to dark mode". CNN.
52. "watchOS 6 advances health and fitness capabilities for Apple Watch" (Press release). Apple Inc. Retrieved June 6, 2019.
53. "watchOS 6". Apple Inc. Retrieved February 23, 2020.

External links

• watchOS – official site