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Wear OS

Adapted from Wikipedia · Discoverer experience

A modern Samsung Galaxy Watch, showcasing its sleek design and digital display.

Wear OS is a special kind of computer system made for smartwatches and other wearable devices by Google. It was first called Android Wear when it came out in 2014 and changed its name to Wear OS in 2018. This system works best when connected to phones that use Android or iOS, letting users get notifications and use helpful tools right on their wrists.

Wear OS can connect through Bluetooth, NFC, Wi‑Fi, and even cell networks like 3G, 4G, and LTE. It also works with Google Play, so users can find many apps and watch faces that come in round, square, and rectangular styles. Many companies like Asus, Fossil, HTC, LG, Samsung, and Xiaomi help make these smartwatches.

Since it launched, Wear OS has become popular. In 2014, over 720,000 smartwatches were sold, and by 2022, the Wear OS app had been downloaded more than 50 million times. By 2021, it was a big part of the smartwatch market, even though Apple’s watches were more popular. Today, Samsung is the main company selling Wear OS devices after switching back to it in 2021.

History and compatibility

The platform was first shown on March 18, 2014, with a preview for developers. Companies like Motorola, Samsung, LG, HTC, and Asus joined as partners. On June 25, 2014, at Google I/O, the Samsung Gear Live and LG G Watch were introduced, marking the first smartwatches to run Android Wear. The LG G Watch was the first to be released and sold, followed by Motorola's Moto 360 in September 2014.

Logo for Android Wear, the previous name of the operating system

An update in December 2014 added new features and changed the software to be based on Android 5.0 "Lollipop". More devices like the Asus ZenWatch, the Sony SmartWatch 3, and the LG G Watch R arrived by the end of 2014. By March 2015, newer models included the LG Watch Urbane and the Huawei Watch.

In 2015, Google introduced a Wear OS app for iOS version 8.2 or newer, letting users receive iOS notifications on supported smartwatches. In March 2018, Android Wear was renamed to Wear OS to better match its technology and vision. In September 2018, Wear OS 2.0 brought changes like a new Google feed and fitness tracking features.

In January 2021, Google finished buying the wearables company Fitbit, planning to invest more in Wear OS and bring new devices to the market. In May 2021 at Google I/O, Google shared plans for Wear OS 3.0. This update includes a new look inspired by Android 12 and Fitbit's exercise tracking. Google also partnered with Samsung Electronics to bring Wear OS to Samsung's future smartwatches. The update uses Android 11 and will be available for devices with Qualcomm Snapdragon Wear 4100 system on chip, needing a factory reset to install.

Features

Wear OS can show messages from a connected phone or tablet. Users can talk to the device by saying "OK Google" and can also use hand movements to give commands. It works with many Google services like Google Assistant, Google Mobile Services, Gmail, Google Maps, and Google Wallet, as well as apps from the Play Store.

From the watch's main screen, users can swipe up to see messages, swipe down to change settings quickly, swipe left to see news and interests, and swipe right to check activity and health details with Google Fit. The watch can track walking or running and, if it has a heart sensor, can check heart rate when asked or at set times during the day. It can also control music or videos playing on the connected device.

Version history

Android Wear

Wear OS

Wear OS 1 and 2

Wear OS 3 and later

Android Wear versionAndroid OS versionRelease dateNew features
4.4W14.4 KitKatJune 2014
Initial release
4.4W2October 2014
Offline music playback over Bluetooth
Watch GPS support (for watches with built-in GPS)
New music control UI
1.0 (5.0.1W)5.0.1 LollipopDecember 2014
Official watch face API
Sunlight mode (brightness boost)
Theater mode
Settings shade from top
Battery stats in Android Wear app
Recently used actions added to the top in drawer
Ability to undo dismissed notification
1.1 (5.1.1W1)5.1.1 LollipopMay 2015
Wi-Fi support (for watches with built-in Wi-Fi)
Drawable Emojis (as response to messages)
Heads up notifications
Pattern lock screen
Ability to change font size
Add swipe left from watch face to access app drawer
Always on apps
More wrist gestures
1.3 (5.1.1W2)August 2015
Interactive watch faces
Google Translate for Wear
1.4 (6.0.1W1)6.0.1 MarshmallowFebruary 2016
More wrist gestures
Speaker support for watches with built-in speaker
Send voice messages directly from the watch
1.5 (6.0.1W2)June 2016
Brought back restart watch option
Added Android security patch level to About screen
2.0 (7.1.1W1)7.1.1 NougatFeb 2017
Revamped UI with Material Design, darker colors, and a more circular user interface for round watches.
Standalone apps with Google Play Store on watch
Complications for watch faces
Built-in keyboard
Handwriting recognition
Stackable notifications
Smarter notifications
Cellular Support
2.6 (7.1.1W2)Nov 2017
Text size of notifications adapts to message length
New download progress indicator
New complication for launching previously used app
2.6 (7.1.1W3, 8.0.0 W1)8.0 OreoDec 2017
Brings Android 8.0 Oreo features to smartwatches
Notification vibration strength setting
Touch lock option for wet conditions
Support for 7 new countries/languages
Notification Channels
Battery saving background limits
2.7 (7.1.1W4, 8.0.0 W2)Dec 2017
Improved typefaces and font weights
Complications now work with Talkback
Text size of notifications adapts to message length
Swipe down in Quick Settings to see connection type (Wi-Fi, Bluetooth, or mobile)
Download progress notifications
Recent App complication
Better prevention of accidental side-swipe and long-press gestures
2.8 (7.1.1W5, 8.0.0W3)Jan 2018
Improved notification glanceability with a new layout which shows more of the user's message at a glance
Darker background for better readability and less battery usage
2.9 (7.1.1W6, 8.0.0W4)Feb 2018
New notification preview complication which allows you to preview messages
Improved glanceability in notification cards with longer titles
Wear OS versionAndroid OS versionsRelease dateNew features
1.0Android 8 OreoMarch 2018
Rebranding to Wear OS
Expand Google Pay Support in more countries
1.4July 2018
Faster Google Pay startup
More glanceable design for events and appointments
Time zone sync bug fix
2.0September 2018
Swipe actions for faster access to Google Assistant and Google Fit
Google Assistant feed with proactive personalized information
New design for quick toggles and notifications stream
New music controls with physical button support
Bolder font in the app launcher
2.2Android 9 Pie H MR1November 2018New features for System version H MR1:
Brings Android 9.0 Pie features to smartwatches
Enables Battery Saver mode to only display the time once the battery falls below 10%
Improves restoring the state of previously used apps
Watches now enter a deep sleep mode after 30 minutes of inactivity
Holding down the power button now provides options for shutting down or restarting the watch
2.6May 2019
Tiles functionality when swiping left, providing access to next calendar events, weather forecast, heart rate, news headlines and timer functionality
2.7June 2019
Bug fixes
2.9July 2019
Notifications
2.17April 2020
New 'Wash hands' timer regarding coronavirus
New UI and Tiles for Google Fit
2.23Android 9 Pie H MR2December 2020Changes in System H MR2:
CPU core improvements: app launch and boot time up to 20% faster
SysUI improvements: more intuitive controls for managing different watch modes and workouts
Increased performance with the Qualcomm Snapdragon Wear 4100 and 4100+ platforms
Improved LTE support
Simplified pairing process
Better battery life
Support for an increased numbers of Tiles
New Weather Tile
Ability to turn off Long Press Power Button to activate Google Assistant
Ability to set the screen off time limit
New screen brightness layout
YouTube Music App
Google Fit: Workouts & Breathe Tiles + New home screen & New Sleep features
Social share and challenge
Wear OS versionAndroid OS versionsRelease dateNew features
3.0Android 11August 2021Brings Android 11 features to smartwatches
New UI design
Health features to Google Fit:
Stress management
Compatible ECG app
Skin temperature
SpO2 levels
Sleep tracking
Wake up
Hardware improvements:
Long battery life with Bluetooth improvements (up to a week)
Social integration:
Social challenges
3.2February 2022
App drawer and notification tray icons tweaked
3.5October 2022
Integration with Fitbit
Added new watch faces
Removed:
Compatibility with iPhones
4.0Android 13July 2023
Animated Tiles
New XML watch face format
Improved battery life
Native backups
App permission syncing with connected phone
More granular permission handling for health data
Improved golf tracking
5.0Android 1419 July 2024
Grid-based app launcher
Media output device choices
Watch Face Format enhancements
Screenshot detection
Health Services updates
5.1Android 1519 March 2025
Force Global AOD Experience
Active watch face tweak
New accent color
Settings > Modes
Improved step tracking algorithm
Media Controls Upgrade
6.0Android 1622 July 2025
Introduced Material 3 Expressive UI
6.1Android 169 December 2025
New gesture controls
Improves Smart Replies

Related articles

This article is a child-friendly adaptation of the Wikipedia article on Wear OS, available under CC BY-SA 4.0.

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