
What You Should Know:
– Lumia today announced the launch of Lumia 2, marking a “Category-Defining Moment in Wearables”. Lumia 2 is the world’s first smart earring that continuously tracks real-time blood flow to the head—a signal previously impossible to measure accurately at the wrist or finger.
– Originally developed with researchers from Johns Hopkins, Duke, and Harvard, the technology is now available to the public in a fine-jewelry form factor, raising its total funding to $17.2M.
The Power of Blood Flow Insights

Lumia 2’s core innovation is the Lumia Core smart earring back, which houses the second-gen PreciseLight™ sensor and other health sensors. Weighing less than 1 gram and five times smaller than AirPods, sitting close to the heart and brain, it captures deep health signals.
The continuous blood flow tracking has been clinically demonstrated at Johns Hopkins, Duke, and Harvard and provides instant insight into how blood flow affects energy, focus, and mental clarity.
The insights reveal hidden patterns:
- Lifestyle Connection: Blood flow changes with nearly every lifestyle factor, including hydration, diet, posture, and sleep.
- Cognitive Performance: Users can see how sitting posture affects cognitive performance or visualize the consequences of a carb-heavy lunch.
Beyond blood flow, Lumia 2 offers standard wearable features like sleep, temperature, cycle, and readiness tracking, often with greater accuracy due to the ideal sensing location in the ear.
Engineering for 24/7 Wearability and Financial Momentum
Lumia 2 includes features designed for continuous wear, eliminating the common hassle of charging:
- Swappable Batteries: Features a novel swappable battery pack system so the earring doesn’t have to be taken off to charge. Each battery pack supports 5-8 days of battery life.
- Comfort and Security: Optimized Lumia Earrings are low-profile, sleep-friendly, made with non-allergenic materials (platinum/titanium), and feature a new earring back locking system to prevent accidental loss.
- Universal Attachment: Features the patent-pending SwitchBack™ technology, allowing it to attach to any existing earring with a push-back post.
The company also announced $7M in additional investment funding from J2 Ventures, BonAngels Venture Partners, and angel investors, along with $5.1M in government contracts and grants. Total funding to date now stands at $17.2M.
Availability
Lumia 2 is available for reservation in the USA and Canada for early access and pricing.

