Overview
- Unreleased references in watchOS 27 and iOS 27 beta files were flagged this week by a MacRumors forum researcher known as pdfu and reported by multiple outlets, and Apple’s Sept. 9 event is the next chance for confirmation.
- The code names an all-new standalone Readiness app placed beside Workout in the default launcher, which suggests a dedicated recovery or daily readiness score separate from the existing Vitals app.
- watchOS 27 code also shows a redesigned workout data model that can store per-set details such as repetitions, weight, equipment, target side, and set duration for strength training.
- Firmware artifacts reference a new optical-sensing family called Sunstone4p0 with lower noise coefficients and wrist/orientation channel selection, which could enable more continuous heart-rate tracking but would likely require hardware changes to deliver.
- A NAND profile tied to an internal T8320 chip points to 128GB storage for Series 12 and Ultra 4, though reporters and analysts caution that beta code often contains artifacts that may not appear in final products.