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

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.