Ex-Meta Engineers Launch Sandbar Stream Ring for Voice Notes

A new wearable device aims to simplify capturing thoughts and controlling music with a discreet finger ring.

Former Meta employees have introduced the Sandbar Stream ring, a wearable device designed for effortless voice note-taking and music control. It features microphones and a touchpad, activating only when pressed to capture thoughts discreetly. This innovation targets the growing market for AI-powered voice hardware.

Katie Rowan

By Katie Rowan

November 6, 2025

4 min read

Ex-Meta Engineers Launch Sandbar Stream Ring for Voice Notes

Key Facts

  • Sandbar was launched by former Meta employees Mina Fahmi (CEO) and Kirak Hong (CTO).
  • Their first product is the Stream ring, designed for voice notes and music control.
  • The ring features microphones and a touchpad, activating only when pressed.
  • The device aims to capture thoughts discreetly without needing to pull out a phone.
  • The microphone is sensitive enough to pick up whispers and transcribe them in an iOS app.

Why You Care

Ever had a brilliant idea strike while you’re out, but pulling out your phone just feels like a hassle? What if you could capture that thought instantly, without interrupting your flow or shouting into your earbuds? A new device from former Meta employees promises to make this a reality for you. The Sandbar Stream ring is here to change how you interact with your digital world, making voice capture and music control more than ever.

What Actually Happened

Two former Meta employees, Mina Fahmi and Kirak Hong, have launched Sandbar, introducing their first product: the Stream ring. This wearable device is designed to be worn on your index finger, according to the announcement. It integrates microphones and a touchpad, offering a discreet way to take voice notes and manage music. Fahmi, Sandbar’s CEO, brings extensive experience in human-computer interface design. Hong, the CTO, previously worked at Google and CTRL-Labs, which Meta later acquired, as mentioned in the release. Their combined expertise led to the creation of this voice-based hardware.

Why This Matters to You

Imagine you’re on a walk, and a crucial idea for your next project pops into your head. With the Sandbar Stream ring, you simply press and hold the touchpad, and your thoughts are recorded. This eliminates the need to fumble for your phone, as detailed in the blog post. The microphone activates only when pressed, ensuring your privacy. This makes it possible to capture even whispers, which are then transcribed in a companion iOS app. The company reports that the microphone is sensitive enough for quiet environments.

For example, if you’re a content creator, you can quickly dictate ideas for your next podcast episode while commuting. If you’re a musician, you can hum a new melody and record it instantly. This hands-free approach integrates system more naturally into your daily life. How often do you lose a great idea because it’s inconvenient to record it? The Stream ring aims to solve that problem for you.

Here’s a quick look at how the Stream ring compares to other voice-based devices:

Device TypeForm FactorPrimary Use CaseDiscretion Level
Sandbar StreamRingVoice Notes, Music ControlHigh
Plaud Note ProCard-shapedAI Hardware NotetakerMedium
Limitless PendantPendantConversation RecordingMedium
AI Startup FriendCard-shapedVoice NotesMedium

The Surprising Finding

What truly stands out is the origin of the Stream ring’s concept. Mina Fahmi initially built an experimental journaling app when large language models first emerged. However, he found the app itself became a barrier to capturing his thoughts, as the team revealed. This is surprising because digital apps are often seen as solutions, not obstacles. This realization led him to explore a conversational hardware interface instead. The paper states, “A lot of my ideas bubble up when I’m walking or when I’m commuting, and I don’t want to pull out my phone to interrupt that moment.” This highlights a essential user need: the desire for an unobtrusive way to interact with system. It challenges the common assumption that software alone can solve all productivity challenges.

What Happens Next

The Sandbar Stream ring is entering a competitive market for voice-based hardware. However, its discreet ring form factor sets it apart, according to the announcement. We can expect to see more updates on its availability and potential integrations in the coming months. For instance, future versions might include more AI capabilities for real-time transcription or summarization. This could happen within the next 6-12 months. Users should consider how such a device fits into their existing digital environment. Think of it as a personal assistant that’s always ready, but never in the way. The industry will likely watch how consumers adopt this new form factor. It could influence future wearable designs. “Kirak and I were trying to understand what it would take to actually capture a thought the moment it bubbles up,” Fahmi told TechCrunch in an interview. Their approach offers a glimpse into the future of human-computer interaction.

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