Limitless Pendant: A 2024 AI Wearable Launch and Its Privacy Promises

In April 2024 I look at the Limitless Pendant, a newly announced AI wearable from the team behind Rewind. Its form factor and $99 preorder price interest me after the poor reviews of Humane’s AI Pin. This is my reaction to a launch presentation, not a hands-on review of a shipping Pendant.

Rewind was presented as software that captured activity on a computer and stored recordings locally. Its developer says the company is rebranding as Limitless and pairing a new service with a wearable. Local storage is a design choice, not by itself proof that every feature or configuration is completely private.

In the launch video, Limitless co-founder and CEO Dan Siroker introduces a web app, Mac and Windows apps and a wearable, presenting them as a way to augment memory and focus. The company’s proposed system uses context from what a user has seen, said or heard; the precise available sources depend on the product and settings.

A device that might record throughout the day raises privacy concerns for me. Siroker says the aim is to automate meeting preparation, notes and follow-up so people can focus on each other. If the idea of an always-listening device makes someone uncomfortable, this product may not be for them.

The launch shows a meeting-preparation view that summarizes previous context and reminds Siroker about presentation advice from his co-founder Brett. I explain that Rewind similarly lets a user search captured activity to recover details or draft emails. I had not used Rewind myself and was relying on the company’s description.

The earlier Rewind product claimed to compress, transcribe, encrypt and store information locally. I note that local processing can be constrained by a computer’s resources, whereas a cloud service can support access from different devices. Neither local processing nor cloud processing alone guarantees security across every configuration.

I like the launch’s relatively casual presentation and specific use cases. Siroker shows a real-time transcript, generated meeting notes and a later summary. These are examples shown by the vendor, not an independent measurement of transcription accuracy or reliability.

Siroker says the app is available while the Pendant is expected in a few months. It can be worn as a necklace or attached to clothing with a magnetic clasp. The launch describes dimensions of 31.9 mm by 16 mm and claims 100 hours of real-world battery life without swapping packs; I have not verified that figure.

The presentation says an LED is visible while recording, a tap can bookmark a moment or invoke an assistant, and microphones, Bluetooth and Wi-Fi support capture and synchronization. I compare this simpler design with AI Pin: it has no camera or hand-projected interface. My preference for the simpler form is an opinion, not a full product comparison.

The announced Pendant price was $99, compared with the roughly $700 AI Pin at that time. Siroker said a subscription was not required for basic use, while the advertised unlimited AI features would cost $19 a month billed annually. Those were launch-era terms, not current prices or proof that unlimited use had no conditions.

I say I placed a preorder because the price made it practical for me to try the device as part of my work. I think more affordable hardware can attract early users and feedback, though whether it proves good value depends on what actually ships and works.

Siroker introduces a proposed consent mode: the demonstration uses voice identification and a verbal opt-in to distinguish a consenting speaker from someone who has not agreed. This was presented as a future feature. The demonstration does not prove perfect identification, default activation, or that audio from bystanders can never be captured.

I am excited about the possibility of consent-first recording and hope it becomes a broader standard, but I explicitly do not know whether the feature will be mandatory or switchable. Later [Limitless guidance](https://help.limitless.ai/en/articles/13004190-talking-to-someone-wearing-the-pendant-what-to-expect-and-how-we-handle-your-information) says wearers must notify and obtain consent and that nearby voices may be captured. That guidance should not be equated with a guarantee of automated filtering.

Siroker contrasts local Rewind storage with a proposed confidential cloud, asserting that users control access to their data while retaining the convenience of cloud services. He presents this as protection from employers, providers and government requests. These are the company’s claims, not an independently verified guarantee against every access or legal scenario.

I note that encrypted cloud services are not a new concept. Remote access, storage and access to powerful models can be useful, but the security properties depend on implementation, key management and applicable terms. I would also like a local-only option that synchronizes the wearable to my own computer.

I wonder which AI models will power the service and whether users will be able to choose among them. Seeing Sam Altman mentioned in the materials leads me to speculate about OpenAI models, but the presentation I discuss does not establish the provider or future model choices.

Siroker says existing Rewind Pro subscribers will receive Limitless Pro and that the company intends to bring some Rewind features into Limitless while continuing to support Rewind. I appreciate the reassurance but speculate that the older product might eventually be retired if the new service succeeds.

The 2024 roadmap lists web, Mac and Windows apps, confidential cloud, meeting preparation, automated notes and summaries as available, with the Pendant, consent mode and mobile apps to follow. Siroker said the Pendant was expected to ship in August 2024. These are plans made at the launch, not a verified statement that every item shipped on that schedule.

The company said the Pendant would not require a phone, while also planning iPhone and Android apps. I am unsure how it would connect without a phone and speculate about the tradeoffs; the presentation does not establish cellular service. Future integrations could add context from other tools or a computer screen.

I repeat a useful purchasing principle: do not buy hardware solely because of promised future updates. Although I preordered for my own evaluation, I cannot yet recommend that others buy it on the assumption that every roadmap item will arrive. A low price does not verify product performance.

Siroker discusses possible HIPAA compliance, personalized email and Slack drafts, and contextual answers. These are future plans from 2024, not established compliance or current capabilities. I would find personalized draft replies useful, but I do not want to rely on a distant roadmap for that workflow.

The roadmap also mentions agents that take actions, a developer platform and more hardware. I compare the proposed agents with Rabbit R1’s ambitions, while recognizing that the details and timing remain unknown. The launch concludes by displaying an automatically generated summary and action items from its own presentation.

I am enthusiastic about testing the service and expect it could save time if it works as described. Since the video, [Limitless announced its acquisition by Meta](https://www.limitless.ai/), stopped new Pendant sales and said existing customers would receive support throughout 2026 and free unlimited access, with changes to regional availability and non-Pendant services. The description also promotes Pinecone; the transcript does not identify a paid sponsorship.