DEPLOYThe reference layer for physical AI

Robot model

Stream

Sandbar, a startup of about fifteen people co-founded by CEO Mina Fahmi and CTO Kirak Hong, both formerly of Meta through its CTRL-Labs acquisition with Fahmi also ex-Magic Leap, is building Stream, an AI conversation-capture smart ring. The aluminum ring has a touch-sensitive top panel and a microphone that is off by default and proximity-tuned, so a wearer lifts a hand toward the face and whispers to record, with the audio transcribed to a companion iOS app that also offers conversational AI chat and media controls; it has no display, no camera, and no health sensors, explicitly distinguishing it from an Oura-style health ring. It is priced at $249 in silver and $299 in gold on pre-order with a $10-per-month Pro subscription, and the company has raised about $36 million, including a $23 million Series A in March 2026 led by Adjacent and Kindred Ventures after a $13 million round in November 2025. The registry records it at pilot and pre-commercial maturity as a deliberate cap-flag: as of mid-2026 it is pre-order only with a summer-2026 ship target and a sold-out first batch, funded and productized but not yet across the shipping line, so it is not classified commercial until general delivery is confirmed. On AI substance the entire product is an AI conversation-capture and assistant device rather than veneer on an audio gadget, but real-world AI quality is unverifiable because there are no independent reviews of shipping units, so all current claims trace to the company and launch coverage.

Stream is a wearable robot built by Sandbar.


Machine-readable surfaces

Form factor
wearable
Maturity stage
pilot
Lifecycle
active
Deployments
0
ID
18984b7f-8fc3-452d-9bef-dcb40b5cb45a

Specs

notes
[object Object],[object Object],[object Object],[object Object]
specs
Stream: aluminum smart ring with a touch-sensitive top panel; microphone OFF by default and proximity-tuned (lift hand to face, whisper); records + transcribes to a companion iOS app; conversational AI chat + media controls. NO display, NO camera, NO health sensors (explicitly not an Oura-style health ring). $249 silver / $299 gold pre-order; Pro subscription $10/mo. Ships summer 2026 (target).
formFactor
wearable (AI smart ring: off-by-default mic capture -> transcription + conversational AI in a companion app)

Supply chain

No verified supply relationships on file. Supply-chain coverage is being added across the registry; check back as the seed populates this model’s suppliers.

Suppliers appear here when verified with at least two strong sources (maker-official / IR / regulatory / standards-body / verified tier-2). Sources are append-only; corrections add new sources rather than rewrite history.

Sources (4)

  1. https://techcrunch.com/2026/03/sandbar-ai-note-taking-ring-series-a/
  2. https://techfundingnews.com/ex-meta-duo-sandbar-ai-ring/
  3. https://www.tomsguide.com/wearables/smart-rings/sandbar-stream-ai-ring
  4. https://www.thegadgeteer.com/2026/03/sandbar-stream-ring/

Common questions

What is Stream?
Sandbar, a startup of about fifteen people co-founded by CEO Mina Fahmi and CTO Kirak Hong, both formerly of Meta through its CTRL-Labs acquisition with Fahmi also ex-Magic Leap, is building Stream, an AI conversation-capture smart ring. The aluminum ring has a touch-sensitive top panel and a microphone that is off by default and proximity-tuned, so a wearer lifts a hand toward the face and whispers to record, with the audio transcribed to a companion iOS app that also offers conversational AI chat and media controls; it has no display, no camera, and no health sensors, explicitly distinguishing it from an Oura-style health ring. It is priced at $249 in silver and $299 in gold on pre-order with a $10-per-month Pro subscription, and the company has raised about $36 million, including a $23 million Series A in March 2026 led by Adjacent and Kindred Ventures after a $13 million round in November 2025. The registry records it at pilot and pre-commercial maturity as a deliberate cap-flag: as of mid-2026 it is pre-order only with a summer-2026 ship target and a sold-out first batch, funded and productized but not yet across the shipping line, so it is not classified commercial until general delivery is confirmed. On AI substance the entire product is an AI conversation-capture and assistant device rather than veneer on an audio gadget, but real-world AI quality is unverifiable because there are no independent reviews of shipping units, so all current claims trace to the company and launch coverage.
Who makes Stream?
Stream is made by Sandbar, based in United States, founded in 2024.
Where is Stream deployed?
No verified deployments of Stream are currently on the DEPLOY registry. DEPLOY records deployments only when verified at a named site with a primary source; absence may reflect pre-deployment, research, or manufacturer-internal use.
What is Stream's maturity stage?
Stream is at the pilot stage on the DEPLOY maturity ladder (research, prototype, pilot, commercial, production). Pilot stage means at least one named-customer trial deployment is verified.