Overview
- Files found in the watchOS 27 and iOS 27 betas were reported on Monday, September 7, by a MacRumors forum poster and picked up by multiple outlets.
- The code references a new standalone Readiness app placed next to the Workout app, which suggests Apple may surface a recovery or readiness score separate from the current Vitals experience.
- watchOS 27 contains richer strength-workout data structures that record individual sets, repetition counts, weight, equipment type, body side, and duration.
- The betas include an optical-sensing family labeled Sunstone4p0 that shows lower noise coefficients and wrist/orientation channel selection, a change that could signal improved optical heart-rate sensing but would likely require new hardware.
- A NAND profile tied to an internal T8320 chip indicates a possible jump to 128GB storage for Series 12 and Ultra 4, though all of these findings are drawn from in-development code and remain unconfirmed ahead of Apple’s Sept. 9 event.