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- Compare
- Card vs Ring
Satochip Card vs Tangem Ring
What Card does better (13) and where Ring wins (2) — every spec side by side.
Why is Card better than Ring?
- Open-source firmwareYes · Ring: No
- MultisigYes · Ring: No
- Source code availableYes · Ring: No
- TaprootYes · Ring: No
- Compatible third-party wallets3 vs 0
- Wipe after failed attemptsYes · Ring: No
- User-added entropy (dice)Yes · Ring: No
- Message signingYes · Ring: No
- Coin controlYes · Ring: No
- Own node connectionYes · Ring: No
- Tor supportYes · Ring: No
- Replace-by-feeYes · Ring: No
Why is Ring better than Card?
- Warranty (months)24 vs 30012.5×
- NFC backup cardNo · Card: Yes
Specifications
Side by side
| Security | ||
| Secure Element chip | Yes | Yes |
| Secure Element certification | EAL6+ | EAL6+ |
| Air-gapped signing | No | No |
| 100% air-gapped | No | No |
| Supply-chain & tamper protection | Yes | Yes |
| Anti-klepto (anti-exfil) signing | No | No |
| Firmware & open source | ||
| Open-source firmware | Yes | No |
| Source code available | Yes | No |
| Reproducible builds | No | No |
| Firmware licence | Affero GPLv3 | — |
| Upgradable firmware | No | No |
| Bitcoin-only firmware / edition | No | No |
| Device lock | ||
| PIN lock | Yes | Yes |
| PIN entered on the device | No | No |
| Fingerprint unlock | No | — |
| Duress PIN / decoy wallet | No | No |
| Brick / wipe PIN | No | No |
| Wipe after failed attempts | Yes | No |
| Time-delayed unlock | No | Yes |
| Anti-phishing words | No | No |
| Keys & backup | ||
| BIP39 passphrase | Yes | Yes |
| Shamir backup (SLIP-39) | No | No |
| Seed XOR | No | No |
| BIP85 child seeds | No | No |
| 24-word seed | Yes | Yes |
| SeedQR backup | No | No |
| microSD backup | No | No |
| NFC backup card | No | Yes |
| User-added entropy (dice) | Yes | No |
| Stateless use (no stored keys) | No | No |
| Multiple seeds on one device | No | No |
| Bitcoin features | ||
| Multisig | Yes | No |
| Taproot | Yes | No |
| Miniscript | No | No |
| Message signing | Yes | No |
| Coin control | Yes | No |
| Own node connection | Yes | No |
| Tor support | Yes | No |
| Replace-by-fee | Yes | No |
| Silent Payments | No | No |
| Spending limits | No | No |
| Testnet | Yes | No |
| Supported assets | ||
| Altcoins & tokens | Yes | Yes |
| Bitcoin only | No | No |
| Connectivity | ||
| Signing connectivity | USB, NFC | NFC |
| USB | Yes | No |
| Bluetooth | No | No |
| NFC | Yes | Yes |
| QR code camera | No | No |
| Animated QR (UR) | No | No |
| microSD signing | No | No |
| Screen & input | ||
| Screen | No | No |
| Touchscreen | No | No |
| Colour screen | No | No |
| QWERTY keyboard | No | No |
| Battery & power | ||
| Built-in battery | No | No |
| Design | ||
| Weight | 5 g | — |
| Length | 85.6 mm | 8 mm |
| Width | 54 mm | 7.8 mm |
| Materials | Plastic | Zirconia |
| Water / dust resistance | Yes | Yes |
| IP rating | — | IP68 |
| Several colours available | No | No |
| Warranty (months) | 24 | 300 |
| Assembled in | — | Hong Kong |
| DIY build possible | No | No |
| Apps | ||
| Official apps | Android | Android, iOS |
| Desktop app | No | No |
| Mobile app | Yes | Yes |
| Works with wallet apps | Electrum, Sparrow, Bitcoin Keeper | — |
| Compatible third-party wallets | 3 | 0 |
| Other features | ||
| FIDO2 / U2F security key | No | No |
| Password manager | No | No |
