New opt-in Apple Watch Siri audio features can listen to and transcribe conversations all day; Apple says raw audio is inaccessible and deleted after processing (Lily Hay Newman/Wired)

Apple introduced opt-in Siri audio capabilities for the Apple Watch that can continuously listen to and transcribe conversations throughout the day. Apple asserts that the raw audio never leaves the device, is inaccessible to Apple staff, and is automatically deleted after transcription processing.