Apple has begun beta testing Audio Intelligence features for the Watch Series 12 and Ultra 4 in the latest iOS 27.3 and watchOS 27.3 developer releases. Live Rewind lets users double-tap the Digital Crown to pull a text transcript of the last 15 seconds of nearby conversation, while Siri Recap generates short summaries. The tools are opt-in, process audio on-device or via Private Cloud Compute, and signal activation with a chime and animation so others know something is being captured. Full public availability is expected in December.