S

Sandbar

Wearable AI ring for private dictation

Overview

Sandbar makes a wearable AI voice interface in the form of a ring called Stream, allowing users to capture notes, chat with an AI, and dictate text. It works by pressing the ring’s touchpad and speaking into a private microphone that only listens when pressed, with gestures to control notes, reminders, and playback, and it can operate with or without earbuds while syncing with iOS and Mac for universal dictation. The product emphasizes privacy and speed by avoiding wake words or always-on mics, using a private mic, tap-to-listen controls, silent haptics, and a ring form with a durable build for a hands-free experience. Its goal is to be a private, hands-free extension of the mind that helps with memory, note-taking, and decision-making without compromising personal data.

Significant Headcount Growth

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About Sandbar

Simplify's Rating
Why Sandbar is rated
C-
Rated C on Competitive Edge
Rated C on Growth Potential
Rated D+ on Differentiation

Industries

HardwareConsumer SoftwareAI & Machine Learning

Company Size

51-200

Company Stage

Series A

Total Funding

$36M

Headquarters

New York City, New York

Founded

2023

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Simplify's take

What believers are saying

  • Sandbar shipped Stream after October 13, 2026 beta feedback from 100 users.
  • TIME named Stream a Best Inventions of 2026 winner, boosting premium consumer awareness.
  • Preorders and third-party listings on November 12, 2026 show sustained demand at $249.

What critics are saying

  • Stream still lacks independent battery and whisper-performance validation, exposing hardware credibility risk.
  • App Store ratings remain sparse on 2026-11-11, signaling weak consumer traction after launch.
  • Apple and Meta can bundle voice AI into wearables, crushing Sandbar’s niche by 2027.

What makes Sandbar unique

  • Sandbar’s Stream is a push-to-talk voice ring, not an always-listening assistant, unlike Oura.
  • It turns whispered thoughts into notes, dictation, and AI replies through iOS and Mac.
  • The product pairs private hardware with Inner Voice, a voice personalized to each user.

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Funding

Total Funding

$36M

Above

Industry Average

Funded Over

2 Rounds

Series A funding typically happens when a startup has a product and some customers, and now needs funding to scale. This money is usually used to grow the team, expand marketing, and improve the product. Venture capital firms are frequently the main investors here.
Series A Funding Comparison
Above Average

Industry standards

$15M
$8.2M
$15M
$23M
$30M

Benefits

  • Health Insurance
  • Vision Insurance
  • Dental Insurance
  • Unlimited Paid Time Off
  • Company Equity

Growth & Insights and Company News

6 month growth

4%

1 year growth

8%

2 year growth

-15%
TechCrunch
Aug 12th, 2026
Why Stream ring-maker Sandbar says the future of AI wearables is voice | TechCrunch

Watch as Sandbar CEO Mina Fahmi joins Equity to discuss the future of AI wearables and what other AI hardware companies got wrong.

Upstarts Media
Mar 10th, 2026
AI ring startup Sandbar raises $23M to launch Stream note-taking device

Sandbar, an AI hardware startup, has raised $23 million in a Series A round co-led by Adjacent and Kindred Ventures to launch Stream, an AI note-taking ring. The company previously raised $13 million from True Ventures, Upfront and Betaworks. Founded in 2023 by Mina Fahmi and Kirak Hong, who previously worked on Meta's neural wristband project, Sandbar's Stream ring allows users to capture notes and ideas through voice commands with a simple hand-to-mouth gesture. The device, priced between $249 and $299, combines hardware including a haptic motor with customised AI models to process audio inputs and resurface relevant past notes. The startup's 15-person team plans to release Stream this summer, initially focusing on note-taking and brainstorming capabilities. Sandbar envisions the ring serving as an interface for apps like Notion and potentially managing autonomous AI agents.

Tech Funding News
Nov 7th, 2025
Sandbar raises $13M for Stream ring

Sandbar, founded by former Meta engineers, has raised $13M to launch Stream, a voice-controlled smart ring. Stream, described as "a mouse for voice," is worn on the index finger and features built-in microphones and a touchpad. It allows users to capture notes, interact with assistants, and control media through gestures. The ring activates only when pressed, ensuring privacy, and transcribes even whispers into its companion iOS app with high accuracy.

True Ventures
Nov 5th, 2025
Celebrating Sandbar’s Stream Launch

Some physical products can feel like they become part of us, like a watch that you wear every day or a favorite pair of earrings. I believe that Sandbar’s Stream Ring has the potential to be one of them.

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