According to watchOS 27 Beta 8 code, the Apple Watch Series 12 and Apple Watch Ultra 4 may feature 128GB of storage. This information was found in the NAND storage configuration files associated with the T8320 chip.
Apple is planning to introduce a new application called Readiness or Cobalt. This app is intended to focus on the user's current physical state and training load to help determine if they should engage in high-intensity exercise, light training, or prioritize recovery.
The system will expand strength training capabilities. The new implementation allows for the description of each training set, including the storage of repetitions, weight, equipment used, target muscle groups, and duration.
The watchOS 27 update includes a new optical sensor series named Sunstone4p0. This sensor has a thermal noise coefficient 10% to 20% lower than the Sunstone3p75plus sensor, along with lower LED-related noise coefficients, which may improve readings when pulse signals are weak.
