Wearable technology may soon see a shift from wrists and fingers to ears, as Boston-based Lumia Health introduces a new category of sensor-equipped earrings designed to track real-time blood flow and episodic health symptoms. The company’s latest innovation, Lumia 2, aims to address conditions that are often difficult to monitor through traditional smartwatches and rings, offering users insights into dizziness, brain fog, and circulation-related issues.
A new addition to the expanding wearable ecosystem
Smartwatches and smart rings have become everyday companions for millions, helping users monitor movement, sleep, heart rate, and temperature. Lumia Health now hopes to add earrings to this rapidly evolving mix, presenting them as both functional health tools and pieces of fine jewellery.
Lumia 2, the company’s latest release, resembles high-end earrings from the front and is available as huggies, studs, and ear cuffs. The ranges come in 18-karat gold-, platinum-, and rhodium-plated titanium, as well as a clear-finish option crafted for subtlety and comfort.
The key technology lies in the Lumia Core, positioned on the back of the earring. This component houses the second-generation “PreciseLight” sensor along with processors, a battery, and additional monitoring hardware. While the earrings are sold in pairs, users wear the Core on the left ear alone. Lumia also offers “SwitchBack” technology, allowing the Core to be attached to any push-back earring.
Why the ear could be the future of health sensing
According to Lumia Health, the ear is an ideal location for medical-grade sensing due to its proximity to both the heart and the brain. The company argues that readings taken from the ear can offer greater accuracy when tracking subtle changes in blood flow—particularly useful for conditions with episodic or easily missed symptoms.
“This is what comes after smart rings,” said co-founder and CEO Daniel Lee in the launch announcement.
“Just as Oura made rings smart, we’ve made earrings smart. Smart earrings are the ultimate wearable form factor with new capabilities possible only in the ear, unlocking meaningful medical use case potential in a consumer-first product.”
Designed for chronic conditions—but useful for everyone
Lumia Health developed the product in collaboration with researchers from Johns Hopkins, Duke, and Harvard. The earring-based sensors may help individuals with chronic blood flow disorders such as Postural Orthostatic Tachycardia Syndrome (POTS) and long COVID—conditions where symptoms fluctuate and standard vitals often fail to capture abnormalities.
However, the company emphasises that blood flow has a daily impact on energy levels, focus, mood, and cognitive clarity, making the device useful even for people without diagnosed conditions. Lumia 2 can also track sleep, temperature, and menstrual cycle patterns, offering a broad spectrum of wellbeing insights.
Lee noted that users have already experienced surprising revelations:
“From seeing how the way you sit affects your blood flow and cognitive performance, to visualising the consequences of a carb-heavy lunch in your post-lunch dip, to observing how morning exercise boosts circulation for the rest of the day—the personal insights have been endless.”
App-based live monitoring
The Lumia app provides real-time monitoring, allowing wearers to view live data and track patterns over time. With its combination of jewellery aesthetics and advanced sensing, Lumia 2 signals a growing trend toward health technologies that blend seamlessly into everyday attire.