If you’re anything like me, you know how important it is to get ideas and to-dos out of your brain so you actually remember them later. After bringing the iconic smartwatch back this year, Pebble is hoping its next product will help in these situations. It’s a smart ring called the Index 01.
The Pebble Index 01 is a durable, water-resistant ring—about the size of a typical wedding band—that wants to act as external memory for your brain. This is not a smart ring with all the bells and whistles of an Oura Ring. It’s simply a ring with a button and a microphone. You just press the button and whisper your thought. That recording is then sent to the Pebble app on your phone, where it can be automatically converted to text, processed by an on-device LLM, and then added to your preferred notes and reminders app.
Pebble initially tried building this functionality into the Pebble smartwatch app, but found it wasn’t easy enough because it required using your other hand to press the button. Fitting all the necessary tech into a small ring that you wear on your index finger means you can easily press the button with your thumb on the same hand as you raise it to your mouth.
Charging also shouldn’t be an issue. The Index 01’s non-rechargeable silver-oxide hearing aid battery lasts roughly two years based on recording 10-20 short thoughts per day. If you do happen to be away from your phone, the ring has on-ring storage for up to five minutes of audio, which will sync when it connects again.
What about privacy? The ring is not always recording or listening for a wake-up command. It only listens when you actively press the button. Your recordings are processed locally on your phone using open-source speech-to-text and AI models, and the connection between the ring and phone is encrypted. The app works completely offline and doesn’t require a cloud service, although an optional cloud service is available.
Beyond just remembering things, the Index 01 can also perform some basic actions. You can ask it to do things like send messages or answer simple web queries. In addition, button clicks can be configured to control music, your smart home, or Tasker. You can even route the raw audio or transcribed text to your own app or server. It’s designed to be extremely hackable and customizable.
The Pebble Index 01 is available for pre-order today for $75. Once worldwide shipping begins in March 2026, the price will increase to $99. It comes in three colors—polished silver, polished gold, and matte black—and works with both iPhone and Android.
Source: Pebble
