Sandbar Raises $23M to Build Wearable Conversational Interface

New York-based interface company Sandbar secures Series A funding to accelerate development of its private voice ring and conversational assistant.

Published on Mar. 10, 2026

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Sandbar, a New York City-based interface company, has announced a $23 million Series A funding round led by Adjacent and Kindred Ventures. The funding will be used to accelerate hiring and development of Sandbar's first product, Stream, a private voice ring and conversational interface designed to extend human capabilities through seamless, on-the-go interaction.

Why it matters

Sandbar's mission is to bridge the gap between human intent and action, empowering individuals to think, capture ideas, and take action more efficiently and privately through a wearable conversational interface. As AI-powered assistants become more prevalent, Sandbar aims to provide a more personalized and user-controlled alternative that respects privacy.

The details

Stream, Sandbar's first product, pairs a voice ring with a conversational interface that allows users to take notes, brainstorm ideas, search the web, and perform actions without interruptions or the need to unlock devices. Unlike AI companions, Stream is designed without an identity of its own, remembering only what the user shares and using multiple AI models to organize information and respond in real-time. Sandbar plans to introduce a personalized 'Inner Voice' feature this spring to create a more natural interaction experience.

  • Sandbar was founded in early 2024 with a $3 million pre-seed round.
  • The company raised a $10 million Seed round in early 2025.
  • Sandbar announced the $23 million Series A funding on March 10, 2026.
  • Stream is expected to ship to pre-order customers this Summer 2026.

The players

Sandbar

An interface company based in New York City that is developing wearable technology to extend human capabilities.

Mina Fahmi

The co-founder and CEO of Sandbar, who previously worked at CTRL-labs (acquired by Meta) on bridging the gap between human intent and action.

Kirak Hong

The co-founder and CTO of Sandbar, who also previously worked at CTRL-labs.

Adjacent

The venture capital firm that led Sandbar's $23 million Series A funding round.

Kindred Ventures

The venture capital firm that co-led Sandbar's $23 million Series A funding round.

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What they’re saying

“We believe in self augmentation in an agentic world. With the right interface, everyone should be able to develop ideas and get things done wherever they are, with the speed, privacy, and ease of thinking.”

— Mina Fahmi, Co-founder and CEO, Sandbar (prnewswire.com)

What’s next

Sandbar plans to launch a closed beta this spring to refine the software interactions and introduce the 'Inner Voice' feature, which will personalize the conversational interface's voice to the user.

The takeaway

Sandbar's mission to develop a wearable conversational interface that empowers users to think, capture ideas, and take action more efficiently and privately represents a shift away from AI-powered assistants that can compromise individual agency and data privacy.