Wear OS is a smartwatch operating system developed by Google. It allows users to access apps, notifications, and various features directly from their wrist. Compatible with both Android and iOS devices, Wear OS provides a seamless experience for managing calls, messages, and fitness tracking. The platform supports a variety of smartwatch brands, including Fossil, Samsung, and TicWatch. Wear OS offers customizable watch faces and integrates with popular apps like Google Fit and Spotify. Users can also utilize voice commands through Google Assistant for hands-free operation, enhancing convenience and functionality.