The brief

Analyst view

• Open-sources its designs: software under the Affero GPL, hardware under a Creative Commons licence.
• Raised $100M in total by August 2024 from investors including Khosla Ventures and Peter Gabriel.
• Neither device is FDA cleared yet; the stroke detector is furthest along. Aims for units under $1,000.

Technical approach

As reported

Light

Infrared speckle reads blood flow

Near-infrared light shone through the skull scatters off moving blood; changes in the speckle pattern trace blood flow with each heartbeat.

Sound

Steerable low-intensity ultrasound

An ultrasound array focuses gentle sound energy on a chosen brain region to nudge its activity, without surgery and while the wearer can move.

Open source

Phone-industry parts, shared blueprints

Built from consumer-electronics components, with code and designs licensed openly so labs can modify them and share safety data.