Why Stream ring-maker Sandbar says the future of AI wearables is voice
Sandbar, the startup behind the private voice ring Stream, has raised $36 million and believes voice is the future of AI wearables.

Stock photo for illustration only, not from the actual event
- AI notetaking hardware has grown significantly over the past couple of years
- Sandbar has raised a total of $36 million to date
- The startup secured a $23 million Series A led by Adjacent and Kindred Ventures
- The Stream ring focuses on capturing stray thoughts and ideas via voice
AI notetaking hardware has taken off over the past couple of years, with credit-card-sized devices, pendants, pins, and transcribing earbuds all promising to capture meetings and turn them into summaries and action items.
Now, a whole wave of wearables, especially rings, are betting that people want to capture stray thoughts and ideas the same way. One of the companies chasing that bet is Sandbar, the startup behind the private voice ring Stream.

Stock photo for illustration only, not from the actual event
The startup has raised $36 million to date, which includes a $23 million Series A led by Adjacent and Kindred Ventures.
The shift toward ring-based form factors and voice-first interaction highlights an ongoing industry effort to reduce friction in human-AI interaction. Allowing users to capture fleeting thoughts instantly via voice eliminates the delay of opening a smartphone or typing notes, making wearable AI increasingly integrated into daily life.
Source: TechCrunch
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