There’s no shortage of ways to keep track of your health these days. You have rings, earbuds, phones, wristbands, watches, and this thing that scans your pee, just to name a few. Even if the field is crowded, there’s always room for one more wearable item. Enough Small Health-Friendly Gadget as a Cure—No, Seriously, Like In fact Small
The Lumia 2, a $250 smart earring that officially launches today, claims to be the world’s smallest wearable. Weighing just 1 gram, the Lumia might actually be right in that very small niche. It makes the 3G to 5G Oura Ring look bigger, and the 30g to 40g Apple Watch Series 11 looks downright huge.
However, don’t be deceived; The size of the Lumia 2 suggests a much larger feature set. According to Lumia, its smart earring can do pretty much everything that popular wearable devices like the Oura and its expensive smart ring can do, including sleep tracking, cycle tracking, blood flow tracking, and even providing a daily readiness score. In fact, Lumia says its smart earring may even be able to extend some of the capabilities of smart rings and smartwatches due to its unique position on your body, meaning it’s pressed right against your head.
The Lumia 2, according to the company, “can continuously track blood flow in your head in real time, giving anyone instant insight into how blood flow affects energy, focus, and mental clarity.” In other words, the Lumia is particularly well-positioned to track cerebral blood flow, a more clinical way of describing how blood flows throughout that big cerebral meatball you call the brain. There is already evidence that it does this legitimately. In a study in the Journal of the American College of Cardiology (JACC), Lumia’s effectiveness was already measured using Doppler ultrasound, and its smart earring is clearly the real deal. That being said, neither the Lumia 1 nor 2 have received FDA approval yet, so keep that in mind.
You must have noticed that this smart earring has “2” in front of its name. That’s because there is actually a first-gen model, but the original Lumia was designed entirely for medical patients, especially those with chronic blood flow disorders like postural orthostatic tachycardia syndrome (POTS) or those with long Covid who experience “brain fog.” With the Lumia 2, the company is bringing its smart earring to the masses, which means you don’t need to have any type of disease to buy it and you can become one of the first pioneers of smart earring technology.
To match that wider launch, the Lumia 2 comes in several styles, including “huggy hoops,” cuffs and studs, and a few different finishes including gold, silver, and clear. According to Lumia, it also attaches to any push-back earring, and the cuff version doesn’t even require getting your ears pierced. The Lumia 2 itself is made of non-allergenic materials like platinum and titanium, and it also has a swappable battery pack, so you don’t have to remove it to charge. Speaking of charging, Lumia says you’ll get 5 to 8 days of battery life per pack, and the smart earrings (they’re sold in pairs, but the health-tracking module is only worn on the left side) can be worn while showering. They are supported through a companion app on iOS and Android.
My biggest question here isn’t whether the Lumia 2 works or not. I think it probably is, based on the available evidence. However, how the smart earring presses against your head throughout the day and even while you sleep can only be determined by wearing it, and that’s not something I’m aware of yet. Comfort questions aside, on paper, the Lumia 2 makes smart earrings feel a lot less ridiculous than they otherwise would, but maybe that’s just my ignorant brain fog speaking.
If you’re ready to dive into the world of smart earrings, Lumia says the Lumia 2 will be available in 2026, but there’s no specific release date yet. Lumia will start by selling its smart earrings in the US and Canada, though it says “more countries” will follow. You’ll also have to pay a $9.99 subscription fee after purchasing the smart earring to access all of your health metrics, which is a burden, but unfortunately, not unheard of in the health wearable world.