Lumia 2: The world’s smallest health tracker debuts as smart earrings

November 20, 2025  18:41

The American startup Lumia has announced the second generation of its smart earrings, Lumia 2 — a device weighing just 1 gram, which the company describes as the lightest and most compact wearable gadget in the world. Commercial sales are planned for 2026, with a recommended price of $250 (around 20,200 rubles at the current exchange rate).

What Lumia 2 Can Do

Each earring is equipped with optical sensors and an accelerometer. The device tracks:

heart rate and heart rate variability (HRV) sleep quality and phases physical activity and calories burned skin temperature (indirectly)

The monitoring module is built into only one earring, so users can wear either a pair or just a single earring — like a regular piece of jewelry.

Design and Comfort

Lumia 2 will be available in several formats:

classic studs and hoop earrings for pierced ears clip-on versions attachments that fit onto existing jewelry

Materials include gold, silver, and a transparent polymer. The earrings are water-resistant (the exact rating has not yet been disclosed), making it possible to wear them in the shower or during workouts.

Battery life ranges from 5 to 8 days per charge. The device is powered via a compact wireless charging case similar to the ones used for typical TWS earbuds.

Price and Subscription

The base price is $250. Access to advanced health analytics — stress levels, recovery analysis, and sleep recommendations — is offered through a $10-per-month subscription.

In Short

In 2026, the Lumia 2 smart earrings will launch as the world’s lightest health tracker (1 gram), monitoring heart rate, sleep, and activity, with 5–8 days of battery life and a price of around 20,000 rubles. They can be worn with or without piercings, as a single piece or a pair, and can even attach to your existing jewelry. A perfect solution for anyone who wants 24/7 health monitoring without wearing a ring or smartwatch.

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