Sandbar

Voice-first AI wearable in a ring form factor for ambient note-taking

Consumer 📍 New York, NY Founded 2023

Current Valuation

Private

PRIVATE

Sandbar is an AI hardware startup founded by ex-Meta engineers Mina Fahmi and Kirak Hong, building Stream — a smart ring with a microphone and onboard AI for ambient note-taking and voice-first agent interactions. The company raised a $23M Series A led by Adjacent and Kindred Ventures in late 2025, bringing total funding to $36M, with a thesis that voice + a ring is a more sustainable form factor than the screen-bearing AI pins and pendants that struggled in 2024-2025.

Company Profile

CEO

Mina Fahmi

Founded

2023

New York, NY

Employees

~25

Total Raised

$36M

Growth

Series A early-stage

Last Round

Series A — $23M (Dec 2025) · Lead: Adjacent

IPO Status

private

Founders & Key People

Mina FahmiKirak Hong

Investors

Adjacent · Kindred Ventures · First Round Capital

Products

Stream AI ring
Voice-first note-taking app
Ambient agent companion

Competitors

Humane Ai Pin (defunct) · Rabbit R1 · Meta Ray-Ban · Plaud · Limitless Pendant

AIWearablesHardwareVoice