Pebble is back with another delightfully low-tech take on wearables, and this time it’s a smart ring designed to act as an external memory for your brain, without ever needing to be recharged.
The Pebble Index 01 is a tiny stainless-steel ring with a physical button and mic, built to capture quick thoughts and reminders the moment they pop into your head – a bit like what Sandbar is trying to achieve with Stream.
Press the button, whisper your note, and the ring sends the recording to your phone once it’s in range. The Pebble app converts it to text locally, then files it into your notes, reminders, calendar, wherever you prefer. No cloud requirement, no subscription, and no background listening. Pebble says the whole system is deliberately simple: you press, you speak, you’re done.
What makes the Index 01 stand out is its battery approach. Instead of daily or weekly charging, the ring uses a silver-oxide hearing-aid battery that lasts years under typical use. Pebble claims around 12–14 hours of continuous recording time, which roughly translates to two years of real-world usage for someone logging short snippets throughout the day. When it finally runs out, you send the ring back for battery replacement and recycling.
The design itself is as minimalistic as the concept. The housing is about the size of a wedding band, water-resistant to 1 metre, and shaped so it won’t bump against your phone while you’re holding it.
For anyone who wants more than basic note-taking, the ring supports optional actions like sending quick messages, controlling music, triggering smart-home setups, or routing raw audio into your own apps. Like every Pebble product, it’s fully hackable, with open-source software and support for over 99 languages via on-device speech-to-text and LLM processing.
The Index 01 is available in three colours (silver, polished gold and matte black) and eight sizes. It’ll cost $75 if you pre-order it otherwise it’ll cost $99 once shipping begins in March 2026.
It’s not a health tracker, not an AI companion, and not something that turns your finger into a smartphone but it is a smart ring that’ll help you keep track of your thoughts without ever asking for a charger.
You can pre-order it here.
