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Google Wear OS vs Tizen OS for Wearable vs Apple watchOS

Product Name

Google Wear OS

Tizen OS for Wearable

Apple watchOS

Product Image Google Wear OS Tizen OS for Wearable Apple watchOS
Our Rating NaN.0 NaN.0 NaN.0
Brand Google Samsung Apple
Category Wearable OS Wearable OS Wearable OS


Developer Google, Opensource Community Samsung, Linux Foundation, Tizen Association and Intel Apple
First Launch March 18, 2014 January 5, 2012 (For Smartphone), September 1, 2015 (With Smartwatch Samsung Gear 2) April 24, 2015
Initial Version 4.4W1 Tizen OS 1.0 Larkspur (April 30, 2012) watchOS 1.x
Latest Stable Version 2.6 (Based on Android 8.x Oreo) Tizen OS 3.0 4.2
First Device LG G Watch Samsung Gear 2 (First Tizen OS Smartwatch) Apple Watch Series 1
Working State Current Current Current
Latest Flagship Device TAG Heuer Connected Modular 45 Samsung Gear S3 (As of Smartwatch) Apple Watch Series 3


Device Type Target Smartwatches, Other Wearables Smartwatches, Smartphones, Wearable Devices Smartwatch
Platforms 32-bit ARM, MIPS, x86 ARM and x86 32-bit ARM architecture ARMv7-A
Interface Touchscreen, depends on manufacturer Touch, Rotating Bezel, Buttons Touchscreen, “Digital Crown” Dial


Programming Language Used / Written In C (core), C++, Java HTML5, C, C++ C, C++, Objective-C, Swift
OS Family Android Tizen OS (Unix-like, Linux Kernel) iOS
Kernel Type Monolithic (modified Linux kernel) Monolithic kernel Unix-like
Source Model Open source, with closed source components Open source Closed (with open-source components)
License Type Apache License 2.0 Linux kernel patches under GNU GPL v2 GPLv2, LGPL, Apache License, BSD, Flora License Proprietary software, except for open-source components
Update Method OTA OTA FOTA

OS Features

Fitness and Health Monitoring Yes, via Google Fit Yes, via Samsung S Health Yes, via Apple Health
App Store Google Play Tizen Store Apple App Store
App Store Link play.google.com/store tizenstore.com apple.com/lae/ios/app-store
App Extension APK TPK (For Native), WGT (For Web App) IPA
Multi Tasking Yes Yes Yes
App Development Language Java, C++ C/C++, HTML5 Swift, Objective C


Touch Yes Yes Yes
Watchface Customizable Customizable Customizable
Voice Command Google Voice Yes Yes
Personal Assistant Google Assistant Samsung S Voice Apple Siri
Smartphone Compatibility Android 4.3+ and iOS 9+ Android, iOS iOS 9+
Smartphone Companion App Android Wear App Samsung Gear App Apple Watch App