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Whisper Your Ideas: The Pebble Smart Ring
9 Dec, 2025
Summary
- Pebble's Index 01 is a smart ring with a microphone for capturing thoughts.
- It functions as an 'external memory' to save ideas without using a phone.
- The ring costs $75 during preorder, rising to $99 later.

The Pebble Index 01 emerges as a novel wearable, acting as an "external memory" for users' ideas. This discreet smart ring features a built-in microphone, allowing individuals to capture thoughts by simply whispering into it. The device syncs these captured ideas to a notes app or saves them for later retrieval, negating the need to access a smartphone for quick notations.
Designed for constant wear, the ring requires a button press to activate recording, ensuring privacy during conversations. It boasts a battery life of several years without needing a charge and is water-resistant, similar in size to a wedding band. Pebble founder Eric Migicovsky highlights its open-source nature, inviting customization and integration with future AI services.
Currently available for preorder at $75, the Pebble Index 01 will retail for $99 once shipments commence in March. The device is compatible with both iPhone and Android platforms, promising a simple yet effective way to manage thoughts on the go.