Service or product profile
Keystone 3 Pro: Bitcoin hardware wallet and official sources
A great QR signer for the person who wants to separate transactions from a regular data connection.
Editorially reviewed on 20 August 2026
Key information
Keystone 3 Pro
- Service type
- Bitcoin hardware wallet
- Manufacturer
- Yanssie HK Limited
- Edition
- Multi-coin / Bitcoin firmware
- Especially suitable for
- QR and large display
- A strong point
- Large display, camera, open firmware and Bitcoin-only firmware option.
What to watch out for
The manufacturer lists three security chips, but the marketing claim itself is not an independent audit.
Before buying or depositing a larger amount, check the current terms, exact domain and details in the official source.
Official sources and documentation
Official sources and documentation
The links show where the information comes from. They are not an independent security audit or a guarantee of future pricing.
Bitcoin Verity
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