Robots-AI Wearables

Pebble Index 01

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External memory for your brain.Record your thoughts with the microphone. Never needs charging. Privacy by design. No paid subscription. Customizable and open source

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Pebble Index 01

External Memory For Your Brain

Catch your best ideas before they slip through your fingers

Do you ever have flashes of insight or an idea worth remembering? This happens to me 5-10 times every day. If I don't write down the thought immediately, it slips out of my mind.

Introducing Pebble Index 01 - a small ring with a button and microphone. Press the button, whisper your thought, and it's sent to your phone.

Here's the best part: the battery lasts for years. You never need to charge it.

Pre-order today for $75. Worldwide shipping begins in March 2026.

Pebble Index 01

External memory for your brain.

Record your thoughts with the microphone
Never needs charging
Privacy by design
No paid subscription
Customizable and open source

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FAQ

How does it work?

People usually wear it on the index finger. Inside the ring is a button, a microphone, a Bluetooth chip, memory, and a battery that lasts for years. Click the button with your thumb, talk into the mic, and it records to internal memory.

How long does the battery last?

Roughly 12 to 15 hours of recording. On average, I use it 10-20 times per day to record 3-6 second thoughts. That's up to 2 years of usage.

Is it secure and private?

Yes, extremely. The connection between ring and phone is encrypted. Recordings are processed locally on your phone in the open-source Pebble app. The app works offline and does not require a cloud service.

Is a paid subscription required?

No.

How durable and water-resistant is it?

It's primarily made from stainless steel 316, with a liquid silicone rubber (LSR) button. It's water-resistant to 1 meter. You can wash your hands, do dishes, and shower with it on.

Does it work with iPhone and Android?

Yes

Technical Specifications

	Pebble Index 01
Size	2.95mm thick, 6.6mm wide
Weight	4.7g (Size 10)
Input	Button + microphone
Starts shipping	March 2026
Price	$75 (pre-order) / $99 (later)
Charging	Never needs charging
Battery life	Years of average use
Water resistance	1M water-resistance
Privacy	Can't record unless button is pressed
Subscription	None required
Open Source	✅ Github