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- Compare
- Bitkey vs Portal
Block Bitkey vs TwentyTwo Portal
What Bitkey does better (3) and where Portal wins (10) — every spec side by side.
Why is Bitkey better than Portal?
- Mobile appYes · Portal: No
- Fingerprint unlockYes · Portal: No
- Built-in batteryYes · Portal: No
Why is Portal better than Bitkey?
- TaprootNo · Bitkey: Yes
- ScreenNo · Bitkey: Yes
- Compatible third-party wallets0 vs 2
- Thickness13 mm vs 5 mm2.6×
- Weight65 g vs 30 g2.2×
- Supply-chain & tamper protectionNo · Bitkey: Yes
- PIN lockNo · Bitkey: Yes
- 24-word seedNo · Bitkey: Yes
- Tor supportNo · Bitkey: Yes
- Replace-by-feeNo · Bitkey: Yes
Specifications
Side by side
| Security | ||
| Secure Element chip | No | No |
| Air-gapped signing | No | No |
| 100% air-gapped | No | No |
| Supply-chain & tamper protection | No | Yes |
| Secure boot | Yes | — |
| Anti-klepto (anti-exfil) signing | No | — |
| Firmware & open source | ||
| Open-source firmware | Yes | Yes |
| Source code available | Yes | Yes |
| Reproducible builds | No | No |
| Firmware licence | MIT | GPLv3 |
| Upgradable firmware | Yes | Yes |
| Firmware update via | NFC | NFC |
| Bitcoin-only firmware / edition | Yes | Yes |
| Device lock | ||
| PIN lock | No | Yes |
| PIN entered on the device | No | No |
| Fingerprint unlock | Yes | No |
| Duress PIN / decoy wallet | No | No |
| Brick / wipe PIN | No | No |
| Wipe after failed attempts | No | No |
| Time-delayed unlock | No | No |
| Anti-phishing words | No | No |
| Keys & backup | ||
| BIP39 passphrase | No | No |
| Shamir backup (SLIP-39) | No | No |
| Seed XOR | No | No |
| BIP85 child seeds | No | No |
| 24-word seed | No | Yes |
| SeedQR backup | No | No |
| microSD backup | No | No |
| NFC backup card | No | No |
| User-added entropy (dice) | No | No |
| Stateless use (no stored keys) | No | No |
| Multiple seeds on one device | No | No |
| Bitcoin features | ||
| Multisig | Yes | Yes |
| Taproot | No | Yes |
| Miniscript | No | No |
| Message signing | No | No |
| Coin control | Yes | Yes |
| Own node connection | Yes | Yes |
| Tor support | No | Yes |
| Replace-by-fee | No | Yes |
| Silent Payments | No | No |
| Spending limits | No | No |
| Testnet | No | Yes |
| Supported assets | ||
| Altcoins & tokens | No | No |
| Bitcoin only | Yes | Yes |
| Connectivity | ||
| Signing connectivity | NFC | NFC |
| USB | No | No |
| USB-C | Yes | — |
| Bluetooth | No | No |
| NFC | Yes | Yes |
| QR code camera | No | No |
| Animated QR (UR) | No | No |
| microSD signing | No | No |
| Screen & input | ||
| Screen | No | Yes |
| Screen size | — | 0.91″ |
| Screen type | — | OLED |
| Screen resolution | — | 126 × 64 |
| Touchscreen | No | No |
| Colour screen | No | No |
| Gorilla Glass | — | No |
| Controls | — | Button |
| QWERTY keyboard | No | No |
| Battery & power | ||
| Built-in battery | Yes | No |
| Battery capacity | 330 mAh | — |
| Removable battery | No | — |
| Wireless charging | No | — |
| Design | ||
| Weight | 65 g | 30 g |
| Length | 62 mm | 135 mm |
| Width | 56 mm | 65 mm |
| Thickness | 13 mm | 5 mm |
| Materials | Corian and stainless steel | Polycarbonate |
| Water / dust resistance | No | No |
| Several colours available | No | No |
| Warranty (months) | 12 | — |
| Assembled in | USA | Italy |
| DIY build possible | No | Yes |
| Apps | ||
| Official apps | Android, iOS | — |
| Desktop app | No | No |
| Mobile app | Yes | No |
| Works with wallet apps | — | Nunchuk, Bitcoin Keeper |
| Compatible third-party wallets | 0 | 2 |
| Other features | ||
| FIDO2 / U2F security key | No | No |
| Password manager | No | No |
