Operating Systems – Foundations of Modern Computing - watchOS : A Smarter Watch operating system

💪 watchOS: From HealthKit to Liquid Glass A comprehensive analysis of watchOS, the operating system for the Apple Watch, covering both its evolution and its newest features. The Wikipedia entry gives a broad overview of the operating system's technical foundation, documenting its extensive version history from its 2015 debut up to the modern watchOS 26, highlighting the gradual integration of advanced health monitoring capabilities via HealthKit. Conversely, the Apple marketing material focuses specifically on the most current version, watchOS 26, emphasizing major updates across design and function. Key new features include the adoption of a refreshed Liquid Glass visual design and productivity enhancements like the Wrist flick gesture for quickly dismissing alerts. For fitness, the update introduces a detailed Sleep score and the Workout Buddy feature, which provides personalized, audible motivation derived from the user's recorded fitness history. Finally, communication sees improvements through features like Smart actions in Messages and integrated Live Translation.