Part 5/12:
Verdict: Unsuitable for serious transactions or security research due to missing call data visibility.
Rating: 3/10 stars.
3. Keystone Pro
Design & Features: Touchscreen interface, open source verification, QR code connection method.
Data Visibility: Shows the full structured data for EIP712 signatures—almost ideal.
Call Data Handling: Inconsistent call data decoding; sometimes truncates or fails to decode properly.
Recommendations: Not recommended for high-assurance use, but adequate for basic signing.
Rating: 4/10 stars.
4. Treasure Model T & Safe 5
- Design Evolution: The Safe 5 improves over the Model T with a larger touchscreen, dropdown secure element (EAL6+), and more ergonomic interface.