Just under a year after the rebirth of the Kickstarter favorite Pebble smartwatch, the founder of that tech gadget is debuting the company’s next product.
The Pebble Index 01 is a smart ring of sorts, but instead of focusing on health data or sleep cycles, the sole purpose of this ring is to help wearers remember thoughts that bolt out of the blue during the middle of the day.
“Do you ever have flashes of insight or an idea worth remembering? This happens to me five to 10 times every day,” Eric Migicovsky, who shepherded Pebble from Y Combinator to an angel investment of $375,000 to the record-setting Kickstarter campaign, wrote in a blog post. “If I don’t write down the thought immediately, it slips out of my mind. Worst of all, I remember that I’ve forgotten something and spend the next 10 minutes trying to remember what it is. So I invented external memory for my brain.”
While some gadget hounds might balk at the Index’s singular focus, they can’t grumble at the price or battery life. RePebble (the company’s new operating name) says people who preorder the Index 01 will pay just $75—and the product will cost $99 when it ships in March 2026. As for the battery life? Forget recharging. Migicovsky said it lasts for years.
When the battery does reach the end of its life, the Pebble app will alert users and ask if they want to order another ring. (There’s no charger, as Pebble believed people were more likely to misplace the charger before they needed it.)
Worn on the index finger, the ring has a button you can click with your thumb to record your thoughts to internal memory. If your phone is within range, that recording is automatically sent over and converted to text on the device. A large language model (LLM) will then select the appropriate action (which could be anything from creating a note to scheduling an appointment). And if there’s wind or loud background noises, you can listen to a raw audio playback to recapture your thought.
The ring itself is water-resistant up to 1 meter and doesn’t need to be removed when showering or washing your hands. Unlike some digital assistants, it’s not listening to anything you do if you’re not pressing the button. There’s no monthly subscription fee either.
“Initially, we experimented by building this as an app on Pebble, since it has a mic and I’m always wearing one,” Migicovsky wrote. “But, I realized quickly that this was suboptimal—it required me to use my other hand to press the button to start recording (lift-to-wake gestures and wake-words are too unreliable). This was tough to use while bicycling or carrying stuff. Then a genius electrical engineer friend of mine came up with an idea to fit everything into a tiny ring.”
The Index 01 comes in three colors—polished silver, polished gold, and matte black—and in U.S. ring sizes 6 to 13. While the point of the ring is to do one thing well, Migicovsky said Pebble is leaving the door open for users to customize it and create additional functionality.
Pebble was one of the first smartwatches, raising $10.3 million on Kickstarter in 2012. From 2013 to 2016, having a Pebble on your wrist gave you instant geek street cred. But in December of 2016, the company announced it would shut down, as it struggled to find a mainstream audience and competition increased.
Migicovsky resurrected it earlier this year, changing the name to rePebble, after Google released the Pebble operating system (OS) as open-source software. With this new product, the company is hoping to show it has learned from its past mistakes.
Pebble Time, the second watch in the Pebble’s original incarnation, was largely responsible for the company’s collapse. The company didn’t market the new watch properly, basically dropping it in stores and expecting it to sell, based on the Kickstarter success. Pebble failed, for years, to hire a head of marketing, and any promotion decision the company did make was not necessarily one it stuck with.
Things are a bit different this time around. RePebble has been working on the Index 01 in the background while developing its new Pebble watch, and it is using the same partner factory. There will be a wide alpha test of the product in January before rePebble launches mass production.