Lumia 2 Smart Earrings: Discreet Next-Gen Health Tracking

May 7, 2026

Most wearables compromise your style. Lumia is the first that adapts to it.

Smart earrings that track your sleep, cycle, readiness, blood flow, and activity. More data than you get from a fitness tracker, in a jewelry design you'll want to wear anyway.

No bulky wristbands. No clunky rings. No compromise.

Lumia 2 senses from your ear where the signal is stronger, movement noise is lower, and the data is more accurate than any wrist or finger-worn wearable. It weighs under 1 gram and comes in multiple styles or can be worn with existing earrings. Because your wearable should fit your wardrobe as well as it fits your health goals.

App walkthrough by the founder of Lumia 2

Most wearables are designed for the wrist or finger not because that’s the best place for health data, but because it’s easy to fit a large tracker on your hand. The problem? Signals there are weaker, readings get scrambled by constant movement, and accuracy takes a hit.

Lumia 2 moves the sensor to the ear, where the biometric signal is stronger and less affected by movement. By measuring blood flow directly from this highly accurate location, you capture precise, unrivaled data on your sleep, readiness, cycle patterns, energy, and daily activity.

Lumia 2 blends wearable technology with a fine jewelry design. Crafted to move with your style, not define it.

Choose from huggie hoops, studs, or cuffs in gold, silver, and titanium finishes. Switch styles to match your outfit, your mood, or your moment.

Already have earrings you love? Keep them. SwitchBack™ technology lets Lumia 2 attach to most push-back earrings, so your personal collection stays part of the experience. Your jewelry. Your data.

For those without pierced ears, the cuff gives you another way to wear it.

At under one gram (roughly the size of a coffee bean) the sensor rests entirely behind your ear. It feels exactly like a standard earring back, not like your typical bulky wearable. It blends into your routine and moves through your day exactly how your own jewelry does.

Because it features a swappable battery system that lasts over seven days, you never have to take Lumia 2 off to charge. You get continuous, uninterrupted health data without a clunky piece of tech getting in your way.

Positioned close to the heart and major blood vessels, the ear gives Lumia 2 a fundamental sensing advantage over any wrist or finger-based device.

Here's what that actually means for your data.

Lumia 2 delivers temperature readings significantly closer to your core body temperature than wrist-based devices. More accurate sensing means more reliable health insights, every day.

This chart shows that Lumia delivers the most accurate and consistent core body temperature readings, staying closest to true values compared to other wearables.

The ear moves far less than the wrist during daily activity, which means the optical sensor maintains consistent contact and captures a dramatically cleaner signal. Less noise and sensor gaps. More data.

This image shows that Lumia’s ear-based measurements deliver a smoother, more stable signal than inconsistent wrist-based tracking, ensuring more reliable health insights.

The ear's proximity to major blood vessels unlocks sensing capabilities that simply aren't possible from the wrist, including blood flow insights that have historically only been measurable in clinical settings.

Originally developed in collaboration with researchers at Johns Hopkins, Duke, and Harvard.

Most wearables need to come off to charge, which means they often stay off overnight and you miss your sleep data.

Lumia 2 works differently.

Each Lumia comes with two swappable batteries. Once a week, just swap in your fully charged backup, and pop your discharged battery into the charger so it’s ready next week.

Zero down time. No overnight charging. No missed sleep data.

And that’s not everything. Lumia 2 tracks over 20 health metrics across sleep, readiness, activity, blood flow, and more. Giving you all you’d expect from a wearable tracker and more.

The Lumia app brings your health data together in one place: sleep, cycle insights, readiness, blood flow, HRV, activity, and more. Displayed in a way that's clear, actionable, and easy to understand at a glance.

Track your trends over days, weeks, and months. See how your sleep quality, recovery scores, and stress levels shift over time. The data gets richer the longer you wear it.

Access to your Lumia data requires a membership, available on monthly or annually. Membership keeps your data flowing, your insights current, and new features coming as Lumia continues to grow.