Benjamin Marlin
Professor of Computer Science, Manning CICS, UMass Amherst
Professor of Computer Science, Manning CICS, UMass Amherst
Professor of Computer Science, Manning CICS, UMass Amherst
Associate Professor, Section of Geriatrics and Palliative Medicine, University of Chicago
Associate Director & Senior Scientist, Hinda and Arthur Marcus Institute for Aging Research, Hebrew Senior Life
Boston-based wearable health company Lumia has raised $7 million from J2 Ventures, BonAngels Venture Partners, and angel investors to commercialize Lumia 2, its new generation of smart earrings that monitor blood flow in real time. With an additional $5.1 million in government contracts and grants, the company’s total funding has reached $17.2 million. The Lumia 2 earrings, available in gold, silver, and clear finishes, weigh less than one gram and can be worn as huggie hoops, cuffs, or studs. The device uses SwitchBack technology to attach to standard push-back earrings, while the cuff version can be worn without a piercing. Each smart earring includes sleep, temperature, menstrual cycle, and readiness tracking alongside continuous blood flow measurement. “This is what comes after smart rings,” said Daniel Lee, co-founder and CEO of Lumia. “Just as Oura made…
Lumia is bringing their lightest wearable tech for measuring blood-flow to a whole new market with the introduction of a fine jewelry inspired smart-earring form factor with expanded health monitoring features. BOSTON – Nov. 18, 2025 – Lumia today announced the launch of Lumia 2, the world’s first smart earrings that continuously track real-time blood flow to your head, giving anyone instant insight into how blood flow affects energy, focus, and mental clarity. Originally developed with Johns Hopkins, Duke, and Harvard researchers to help patients with chronic blood flow disorders like POTS (Postural Orthostatic Tachycardia Syndrome) and Long COVID-19, Lumia is now available to everyone for the first time.Indistinguishable from fine jewelry, Lumia 2 can be worn as huggie hoops, cuffs, and studs offered in gold, silver, and clear finishes, and also attaches to any…