Google Wear OS vs Tizen OS for Wearable vs Apple watchOS
| Product Name | Google Wear OSTizen OS for WearableApple watchOS |
| Product Image |    |
| Price | |
| Our Rating | |
| Brand | Google Samsung Apple |
| Category | Wearable OS Wearable OS Wearable OS |
Release
| 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 |
Hardware
| 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 |
Software
| 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 |
Control
| 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 |
