watchOS 27 Code Hints at Readiness App, 128GB Storage for Apple Watch

Code unearthed within the upcoming watchOS 27 operating system suggests significant new features and hardware upgrades for future Apple Watch models, including the anticipated Apple Watch Ultra 4. Leaks point to the introduction of a new "Readiness" app, more sophisticated strength training capabilities, advancements in optical-sensing technology, and a potential doubling of internal storage to 128GB.

The discoveries were made by X user pdfu, who shared findings from Apple's code, revealing details previously unknown. While the Apple Watch Ultra 4 and Series 12 are expected to be unveiled imminently, these software hints offer a glimpse into the innovations powering the next generation of wearables. The watchOS 27 launcher reportedly lists the Readiness app immediately after the Workout app, and the companion iOS 27 app also references its arrangement, indicating a prominent role for this new health monitoring tool. Though specific functionalities remain unclear, its placement suggests a system akin to third-party offerings like the Oura Ring, which focuses on recovery and readiness scores.

New Health and Fitness Features Emerge

Beyond the Readiness app, watchOS 27 code also details enhancements for strength training workouts. The new implementation is capable of breaking down individual sets, logging repetition counts, weight lifted, equipment used, body side targeted, and the duration of each set. This suggests Apple is building a robust, integrated solution to rival dedicated fitness apps, directly within the native Workout application. This level of detail aims to provide users with more comprehensive insights into their strength training routines, crucial for performance tracking and injury prevention.

The findings also corroborate ongoing rumors about substantial internal hardware changes for the Apple Watch Ultra 4 and potentially the Series 12. A new optical-sensing system is hinted at, which could enable more advanced health monitoring capabilities. The exact nature of these sensor upgrades is not yet specified, but they are expected to contribute to more accurate and diverse biometric data collection. Furthermore, evidence suggests that the next-generation S-class chip powering these new models will support a generous 128GB of internal storage, a significant leap from current capacities and potentially paving the way for more on-device processing and storage of apps, media, and health data.

While some of these advancements appear to be hardware-dependent, such as the increased storage and new sensors, others like the Readiness app might become available for older Apple Watch models through the watchOS 27 software update. This approach, if adopted, would allow a broader user base to benefit from Apple's latest health and fitness innovations. The integration of these features underscores Apple's continued commitment to expanding the capabilities of the Apple Watch as a comprehensive health and wellness device, moving beyond basic activity tracking to offer deeper physiological insights.