Apple will debut watchOS 27 at WWDC next week, bringing refinements to its wearable platform. According to Mark Gurman, the update focuses on stability and performance improvements, though three specific features have emerged from supply chain sources.

The most significant addition involves health monitoring upgrades, including enhanced heart-rate tracking capabilities. A high blood pressure notification feature is reportedly under FDA review, suggesting regulatory approval is pending before launch. These improvements should work with existing Apple Watch hardware.

A new watch face draws inspiration from the Modular Ultra design, offering a simplified version for standard Series models. Unlike the Ultra variant, this face removes the central complication and bezel information, featuring a large clock display with three smaller complications below. Gurman notes this brings the Ultra experience to broader Apple Watch users.

Siri improvements will also arrive on watchOS 27, though the full chatbot experience launches on other Apple platforms first. The voice assistant should handle more complex requests and operate more reliably. Beyond these features, watchOS 27 emphasizes performance optimizations and bug fixes rather than major new functionality.