A watch that helps its wearer remember a conversation and glasses that can record a scene present different privacy risks. They share a difficult question: what control does a person nearby have when someone else’s wearable processes their words or image?
What Apple’s watch can—and cannot—keep
On the Apple Watch Series 12 and Ultra 4, Live Rewind shows a text snippet of the previous 15 seconds of speech when the wearer double-presses the Digital Crown. It does not continue transcribing after activation. Siri Recap instead uses ambient listening to produce high-level notes from conversations.
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Apple says Audio Intelligence does not create or store audio recordings and that raw audio used for processing is inaccessible to Apple, apps and the operating system. Live Rewind also signals activation with a chime and an on-screen microphone indicator. Those protections matter, but they do not mean a conversation leaves no record: the wearer can save a Live Rewind text snippet.
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Meta’s camera safeguards leave an audio question
Camera-equipped Ray-Ban Meta glasses use a flashing light to indicate filming. Meta has also said the camera is disabled if that light is covered or tampered with—an effort to make covert filming harder, not a guarantee that every bystander will notice the signal.
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Meta’s camera-free Ray-Ban Meta Audio glasses remove photo and video capture. They retain microphones and audio functions, however, and Reuters reports that they offer no clear signal to bystanders when audio is being recorded.
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2 Removing the camera addresses one concern without settling what happens to nearby conversations.
Why workplaces and regulators care
The wearer’s decision to enable a feature is not the same as a colleague’s or visitor’s agreement to have their information processed. South African legal commentary distinguishes purely personal or household use, which POPIA generally exempts, from organisational use. In workplaces, employers need to consider transparency, a lawful basis for processing and security; restrictions in sensitive rooms may be appropriate.
In Europe, France’s CNIL has called for vigilance over smart glasses’ cameras, microphones and AI functions. Hamburg’s data-protection authority has assessed recording people outside a close family-and-friends circle as generally impermissible without informed consent, apart from rare legitimate-interest cases. That is an assessment of how the devices are used, not a Europe-wide ban on wearing them.
The practical line is between wearing an AI device and using it to capture or process other people’s information. On-device processing, recording indicators and camera-free hardware each limit a particular risk. Clear rules about when capture is allowed—and how affected people are informed—remain necessary.