Wear OS

Wear OS
	;
	Screenshot of Wear OS 5.1, based on Android 15 with the Concentric watch face applied
Developer	Google
Written in	C (core), C++, Java
OS family	Unix-like
Working state	Current
Source model	Closed-source
Initial release	March 18, 2014
Latest release	Wear OS 5.1 (based on Android 15) / 19 March 2025
Latest preview	Wear OS 5.1 (based on Android 15) / November 25, 2024
Marketing target	Smartwatches
Available in	93 languages Azərbaycan - Azerbaijani; Bosanski - Bosnian; Català - Catalan; Čeština - Czech; Dansk - Danish; Deutsch (Deutschland) - German (Germany); Deutsch (Österreich) - German (Austria); Deutsch (Schweiz) - German (Switzerland); Eesti - Estonian; English (Australia) - English (Australia); English (Canada) - English (Canada); English (Ireland) - English (Ireland); English (New Zealand) - English (New Zealand); English (Philippines) - English (Philippines); English (South Africa) - English (South Africa); English (United Kingdom) - English (United Kingdom); English (United States) - English (United States); Español (España) - Spanish (Spain); Español (Estados Unidos) - Spanish (United States); Euskara - Basque; Filipino - Filipino; Français (Belgique) - French (Belgium); Français (Canada) - French (Canada); Français (France) - French (France); Français (Suisse) - French (Switzerland); Gaeilge - Irish; Galego - Galician; Hrvatski - Croatian; Indonesia - Indonesian; Íslenska - Icelandic; Italiano - Italian; Latviešu - Latvian; Lietuvių - Lithuanian; Magyar - Hungarian; Melayu - Malay; Nederlands (België) - Dutch (Belgium); Nederlands (Nederland) - Dutch (Netherlands); Norsk bokmål - Norwegian Bokmål; O‘zbek - Uzbek (Latin); Polski (Polska) - Polish (Poland); Polski (Silesian) - Polish (Silesian); Português (Brasil) - Portuguese (Brazil); Português (Portugal) - Portuguese (Portugal); Română - Romanian; Shqip - Albanian; Slovenčina - Slovak; Slovenščina - Slovenian; Srpski - Serbian (Latin); Suomi - Finnish; Svenska - Swedish; Tiếng Việt - Vietnamese; Türkçe - Turkish; Türkmen dili - Turkmen; Ελληνικά - Greek; Беларуская - Belarusian; Български - Bulgarian; Кыргызча - Kyrgyz; Қазақ тілі - Kazakh; Македонски - Macedonian; Монгол - Mongolian; Русский - Russian; Тоҷикӣ - Tajik; Українська - Ukrainian; ქართული - Georgian; Հայերեն - Armenian; עברית - Hebrew; اردو - Urdu; العربية - Arabic; فارسی - Persian; नेपाली - Nepali; मराठी - Marathi; हिन्दी - Hindi; অসমীয়া - Assamese; বাংলা (বাংলাদেশ) - Bangla (Bangladesh); বাংলা (ভারত) - Bangla (India); ਪੰਜਾਬੀ - Punjabi; ગુજરાતી - Gujarati; ଓଡ଼ିଆ - Odia; தமிழ் - Tamil; తెలుగు - Telugu; ಕನ್ನಡ - Kannada; മലയാളം - Malayalam; සිංහල - Sinhala; ไทย - Thai; ລາວ - Lao; မြန်မာ (Unicode) - Burmese (Unicode); မြန်မာ (Zawgyi) - Burmese (Zawgyi); ខ្មែរ - Khmer; 한국어 - Korean; 日本語 - Japanese; 简体中文 (中国) - Simplified Chinese (China); 繁體中文 (台灣) - Traditional Chinese (Taiwan); 繁體中文 (香港) - Traditional Chinese (Hong Kong) ; Language list as of Wear OS 3.0
Package manager	APK via Google Play
Platforms	32-bit ARM, MIPS, x86
Kernel type	Monolithic (modified Linux kernel)
Userland	Bionic libc, shell from NetBSD, native core utilities with a few from NetBSD
Default; user interface	Graphical (Multi-touch)
License	Proprietary
Official website	wearos.google.com

Wear OS, formerly Android Wear, is a closed-source Android distribution designed for smartwatches and other wearable computers, developed by Google. Wear OS is designed to pair with mobile phones running Android (version 6.0 "Marshmallow" or newer) or iOS (version 10.0 or newer), providing mobile notifications into a smartwatch form factor and integration with the Google Assistant technology.

Wear OS supports Bluetooth, NFC, Wi-Fi, 3G, and LTE connectivity, as well as a range of features and applications provided through Google Play. Watch face styles include round, square and rectangular. Hardware manufacturing partners include Asus, Broadcom, Fossil, HTC, Intel, LG, MediaTek, Imagination Technologies, Motorola, New Balance, Xiaomi, Qualcomm, Samsung, Huawei, Skagen, Polar, TAG Heuer, Suunto, and Mobvoi.

The operating system was first released in 2014 as Android Wear, and took its current name in 2018. Analysts estimate that over 720,000 Android Wear smartwatches were shipped in 2014, the year of its launch. By mid-October 2022, the Wear OS app had more than 50 million downloads. Wear OS was estimated to account for 17.3% of the smartwatch market in Q3 2021, behind Apple's 21.8%. Samsung accounts for the majority of Wear OS devices sold, due to its switch back from Tizen to Wear OS in 2021.