Apple has built a watch that listens to everything you say all day and sorts it into summaries. It shows no light and makes no sound while it does it. You have no way to tell it is on.

Here is what shipped. On the Apple Watch Series 12 and Ultra 4, a feature called Siri Recap listens across your whole day and writes up the conversations you had. A second feature, Live Rewind, shows a text transcription of the last 15 seconds of speech when you double-press the crown. Bloomberg reported both on 12 September.

Apple lists its safeguards. The audio is processed on secure hardware that it says the operating system, Apple, and everyone else cannot reach. Nothing is kept as a conventional recording. You can switch the features off, or limit them to set hours and places.

None of that tells the person across from you anything.

The room used to tell you

Every recorder before this announced itself. A phone laid on the table. A red light. A hand reaching for the button on a Plaud or a Pocket, the recorders built for the job, which only listen once you press them. You could see the recording start, so you could change what you said, move the meeting, or ask the person to stop.

That visibility was doing the real work. The rule in any private conversation was never the wiretapping statute. It was that you could tell. Apple has taken that away, and put the listening on a device people wear all day.

How do you say no to something you cannot see?

Here is why that matters, and it has little to do with the courts. Conversations run on a default that nobody states out loud. This is between us unless I can see otherwise. That default was held up by visibility, rather than by trust in the other person. Remove the visibility and the default collapses, even between people acting in good faith, because good faith was never the thing holding it up.

The listening feature has no warning light

Apple knows disclosure matters, because it built disclosure into the smaller feature. When Live Rewind runs, the watch shows a full-screen animation and a microphone indicator. When Siri Recap listens across the entire day, Bloomberg reports that no such indicator appears at any point. Apple flagged the 15-second feature and left the all-day one silent.

Live Rewind shows a warning. Siri Recap shows nothing.

The reason is easy to guess. A warning light running all day would make the people nearby uncomfortable, so Apple left it off. They chose that.

What Apple says back

Apple disputes the word recording. It argues that people have taken notes with phones and wearables for years, and that these features do the same job. It says the 15-second window on Live Rewind lets people stay near a speaker and use it responsibly. It says there is nothing to share, forward, or hand to another party, because no audio file is ever created. Apple adds that the summaries do not attribute anything to a named person, and that they may leave out sensitive material such as financial details, personal identifiers and passwords. Its own guidance asks users to consider the people around them where a conversation might be private or sensitive.

Read that last line again. Apple is telling you to manage the disclosure yourself. The company removed the visible cue and handed the job of warning the room to the person wearing the watch.

The lawyers agree on the direction, if not on the outcome. Attorneys in California, Massachusetts, Pennsylvania and Washington told Bloomberg the features could run into all-party consent laws, where everyone in a private conversation has to agree before it is intercepted. About half a dozen more states, Illinois and Florida among them, run the same rule. A Seattle lawyer went further. The wearer who fails to say out loud that the watch is recording could face a criminal charge, even after the content is deleted. Todd Dailey, who spent 22 years at Apple, wrote that the feature "just made it much more common and hard to detect."

The legal fight turns on a gap in how the statutes are written. The laws that protect a private conversation were built around a recording, a file that exists and can be played back later. Apple built the listening to avoid making that file. A Boston attorney called it a case of first impression, which means no court has ruled on it yet. A Pennsylvania defence lawyer said both things at once. He said the feature is nearly legal, because the audio is handled by the device rather than a person, then said a case could still be built that it breaks the law. The point for you does not need a court. Apple designed the feature to work around how the law is written.

One local note, and it is my read rather than the reporting's. Several Australian states run consent rules of their own for recording a private conversation. The statute will differ from an American one. The problem underneath it will not. You still cannot tell whether the watch across the table is writing you up.

This watch is the first step. Apple is readying camera-equipped AirPods and smart glasses for next year, and it is one of several companies selling devices built to sit in your day as a constant presence. Apple is getting people used to devices that listen by default. That habit will matter more than this one feature.

How to work now that the room listens

Set the norm out loud. Open a sensitive meeting by asking whether anything in the room is listening, the same way a good chair asks people to silence their phones. Naming it puts the disclosure back where Apple took it from, and it costs you one sentence.

Move the real conversation. The candid part of a negotiation, a review or a pitch is the part worth protecting. Take it to a walk, or a call you control, where you set the terms. You cannot control who is listening any more, so control where you say the important things.

Check your own copy. If your brand sells on trust, privacy or ethics, this is the week to make sure the product does what the words promise. If you rename a problem instead of fixing it, you lose the trust you charge for. Apple can absorb that hit. A studio your size cannot.

Assume the room is listening, because now it might be.