Persona Raises $10M for a Wrist AI Assistant

Persona, the new venture by Zach Yadegari, aims to create an AI personal assistant supported by a connected bracelet. The service is already in free beta via iMessage and claims to have received five-figure preorders for a hardware launch scheduled for December. The startup details an advertising model and technical safeguards around privacy and payments. It has just completed a $10 million funding round led by Vine Ventures.

Five-Figure Preorders and December Availability

Persona has already secured five-figure preorder revenue for its bracelet. The first units are expected to be available in December. In the meantime, the assistant is accessible in free beta through iMessage. According to Zach Yadegari, a few thousand users are currently testing this version. A dedicated app is in development. The bracelet is priced at $179.

Integrated Advertising Without Data Sales, According to the Company

The declared business model is based on advertising. During shopping searches, the assistant will display sponsored products. Zach Yadegari asserts that the recommendations will remain impartial, as the assistant will not know which results are sponsored. For example, a query about office chairs would return options aligned with the user's preferences, some of which would be sponsored. The company also promises that conversations cannot be sold to advertisers or data brokers.

Cloud Processing, Encryption, and Safeguards Against Abuse

The AI model runs in Persona's cloud rather than on the bracelet, with user data transmitted there. This data is encrypted in transit and at rest, and users can delete it. The device is not always listening and does not record continuously; the assistant is activated by a dedicated button or a wrist gesture. The team indicates that it is integrating measures against phishing and command injection, two vulnerabilities identified by labs like OpenAI. On the payment side, the assistant does not see card numbers, and each purchase requires user approval; transactions are handled by third-party providers like Stripe Link, a secure wallet from Stripe designed for assistants.

$10M Raised and a Founder with a MyFitnessPal Acquisition Background

Persona raised $10 million in a round led by Vine Ventures, with participation from Cory Levy and Collective Global. Zach Yadegari, co-founder of Cal AI, is leading the startup alongside an unnamed co-founder. In March, MyFitnessPal acquired Cal AI for an undisclosed amount after the app surpassed the previous calorie app of MyFitnessPal in app stores. At that time, MyFitnessPal noted that Cal AI had crossed the $30 million annual revenue mark in less than two years. After the acquisition, the founders joined MyFitnessPal to continue developing the product until Yadegari left in June to focus on his new project.

Announced Uses and Positioning Against Competing Assistants

According to Yadegari, Persona is already capable of ordering meals or transportation, taking notes, making travel reservations, and handling questions and emails. The assistant is described as similar to Instinct or Muse from Meta, and Yadegari mentions similarities with Bee, the wearable acquired by Amazon in 2025, while emphasizing a privacy-conscious approach. He advocates for the idea of converging smartphone utility tools into a super app powered by an AI assistant. Ultimately, he aims to make Persona more proactive, capable of providing assistance even before a need is expressed and integrating more into daily life.