Apple’s first watchOS 27.3 developer beta brought Siri Recap and Live Rewind into testing on Apple Watch Series 12 and Apple Watch Ultra 4 on November 3, 2026. Recap creates high-level notes about a conversation; Live Rewind shows a text snippet of the preceding 15 seconds when you deliberately trigger it.

The features had previously been described as planned for a later beta. NeoTeo’s earlier coverage of Apple’s watchOS plans provides that context; this is the update on their arrival in watchOS 27.3 developer testing.

What each Apple Watch feature does

Apple describes Siri Recap as a titled summary with key points, not a full transcript. Live Rewind has a narrower job: double-press the Digital Crown to display text from the previous 15 seconds. Apple says it does not keep transcribing in the background. Its Audio Intelligence support guide describes both features and their controls.

FeatureOutputActivation and controlsUnsaved content
Siri RecapA title, high-level summary and key points, rather than a full transcriptOpt in through the iPhone Watch app; schedule by time or location, switch manually, or use Control CenterApple says summaries are deleted after seven days unless saved
Live RewindA text snippet of the preceding 15 seconds; transcription does not continue in the backgroundOpt in and trigger with a double-press of the Digital Crown; an initial microphone calibration was reported during beta setupApple says the text disappears about 30 seconds after the display dims unless you ask Siri about it or save it

The two features therefore leave different kinds of text behind: a short, user-triggered snippet or a set of conversation notes. Apple says Recap does not identify speakers, and warns that summaries can be incomplete or inaccurate and may omit some sensitive or potentially harmful content.

Setup requires more than installing the beta

Brian Minor’s English-language walkthrough demonstrates setup and Live Rewind on his Apple Watch Series 12

Both features are opt-in through the Watch app on the iPhone. Apple lists Apple Watch Series 12 and Apple Watch Ultra 4 as the supported watches, and requires a compatible iPhone with Apple Intelligence and Siri AI (Beta). The iPhone models Apple lists are iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 17, iPhone 17e, iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air, iPhone 18 Pro, iPhone 18 Pro Max and iPhone Duo. Apple lists English as the initial language. The features are unavailable to users under 13; a parent or guardian must enable access for Child Account users under 18.

Victoria Song reported that Live Rewind’s initial setup included microphone calibration. She also found that getting the Digital Crown gesture right took practice. Apple says activation produces a chime, a full-screen animation and a microphone indicator, even when the watch is silent.

Early beta use showed transcription errors

In a quiet home-office test, Victoria Song found Live Rewind usable, but later attempts produced transcription errors. Her first Siri Recap, based on an editorial-planning meeting, had mixed practical value. Those observations describe her early beta use, not a general accuracy result.

How Apple describes audio processing and retention

Apple says Audio Intelligence features do not create audio recordings. Its description of Siri Recap’s processing says the watch’s S11 Secure Exclave handles detected audio and sends it in encrypted form to the paired iPhone’s Secure Exclave, where it is transcribed and condensed. Apple says encrypted, condensed text is then sent to Private Cloud Compute to generate the summary.

The text follows separate retention rules: an unsaved Recap summary is deleted after seven days, while unsaved Live Rewind text disappears about 30 seconds after the watch display dims unless you save it or ask Siri about it. Apple says users can view, edit, delete or export Recap summaries in the Siri app.