Specter2020
ShieldSecure Element chipAir-gapped signingOpen-source firmwareUSB, QR code, microSD
approx. price≈ €450
9.2- isse.eu.com
- Hardware wallets
- DIY signing devices
6 models
Specter2020
Shield LiteSecure Element chipAir-gapped signingOpen-source firmwareUSB, QR code, microSD
approx. price≈ €190
8.2
Keycard2025
ShellSecure Element chipAir-gapped signingOpen-source firmwareUSB-C, NFC, QR code
approx. price≈ €110
5.0
9.2
Specter · 2020
Shield LiteSecure Element chipAir-gapped signingOpen-source firmwareUSB, QR code, microSD
8.2
| Model | Secure Element chip | Secure Element certification | Open-source firmware | Air-gapped signing | Signing connectivity | Screen size | Built-in battery | Weight | Score |
|---|---|---|---|---|---|---|---|---|---|
| Specter Shield 2020 | Yes | — | Yes | Yes | USB, QR code, microSD | 4″ | Yes | 248 g | 9.2 |
| Specter DIY 2020 | No | — | Yes | Yes | USB, QR code, microSD | 4″ | No | 369 g | 6.1 |
| Specter Shield Lite 2020 | Yes | — | Yes | Yes | USB, QR code, microSD | 4″ | No | 248 g | 8.2 |
| SeedSigner DIY 2021 | No | — | Yes | Yes | QR code, microSD | 1.3″ | No | 150 g | 4.0 |
| Keycard Shell 2025 | Yes | EAL6+ | Yes | Yes | USB-C, NFC, QR code | 2″ | Yes | — | 5.0 |
| Krux DIY 2022 | No | — | Yes | Yes | QR code, microSD | 3.5″ | Yes | 150 g | 7.1 |
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