Former Meta employees launch Sandbar, a smart ring that takes voice notes and controls music

Former Meta employees Mina Fahmi and Kirak Hong have launched Sandbar, a smart ring called Stream designed to capture voice notes and control music through a discreet, wearable interface. Both founders have extensive backgrounds in human-computer interaction and neural interfaces, having worked at companies like Kernel, Magic Leap, Google, and CTRL-Labs before their time at Meta. Motivated by the challenge of capturing fleeting thoughts without interrupting daily activities or drawing attention, they developed Stream to enable users to record whispered voice notes via a touch-activated microphone embedded in a ring worn on the dominant hand’s index finger. The ring’s companion iOS app transcribes these notes and includes an AI chatbot that helps organize and edit the content, offering personalized voice feedback and haptic confirmation for silent use in public. Beyond voice capture, the Stream ring functions as a media controller, allowing users to play, pause, skip tracks, and adjust volume without needing to access their phone or headphones. Sandbar is opening pre-orders for the