Lumia has launched Lumia 2, a pair of smart earrings that track blood flow to the head and turn it into daily wellness insights. The company says these trends can help users understand changes tied to energy, focus, fatigue, and cognitive performance.
The Boston-based startup first developed the technology with researchers at Johns Hopkins, Duke, and Harvard to study blood flow patterns. Lumia now says the device is ready for everyday wellness use.
Lumia 2 comes in huggie hoops, cuffs, and studs, with gold and silver options. The cuff version does not need a piercing. Its patent-pending SwitchBack technology also lets the sensor attach to any push-back earring.
At the center of the device is the Lumia Core, a smart earring back that carries the second-generation PreciseLight sensor, processors, battery, and other wellness sensors. The Core is worn on the left ear only, though the earrings are sold in pairs.
The wearable weighs under 1 gram, which Lumia says makes it five times smaller than AirPods and the world’s smallest wellness wearable. Its in-ear placement puts it close to both the heart and brain, allowing it to capture body signals that wrist- and finger-based wearables may miss. Lumia says its continuous blood flow tracking was clinically demonstrated at Johns Hopkins, Duke, and Harvard, with results including Pearson r=0.91 against ultrasound.
Lumia 2 also tracks sleep trends, temperature signals, cycle awareness, and a daily readiness-style score. The company says it does not make fertility, diagnostic, treatment, or disease detection claims. Lumia 2 is not a medical device and is built for wellness awareness and habit guidance.
The earrings use skin-friendly materials such as platinum and titanium and have a secure locking back. Lumia says they are designed for all-day and overnight wear, including sleep, showers, dressing, and exercise. A swappable battery pack system allows charging without removing the earrings, and each pack lasts one week.
Lumia also announced $7 million in new investment from J2 Ventures, BonAngels Venture Partners, and angel investors, plus $5.1 million in government contracts and grants. Its total funding now stands at $17.2 million.
Lumia 2 works with iOS and Android. It will launch first in the U.S. and Canada at $249, with global expansion planned later. Early access reservations are available through Lumia’s website, and the device will also go live through Kickstarter. Lumia 1 is now open for general orders, while existing Lumia 1 members can upgrade through the Edge Access Membership.
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