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- Flex vs Classic 1S Pure
Ledger Flex vs OneKey Classic 1S Pure
What Flex does better (9) and where Classic 1S Pure wins (6) — every spec side by side.
vs
8.1Security8.1
5.5Open source9.3
8.8Bitcoin features6.0
8.7Ease of use4.3
9.0Connectivity7.2
Why is Flex better than Classic 1S Pure?
- Compatible third-party wallets11 vs 42.8×
- MiniscriptYes · Classic 1S Pure: No
- TouchscreenYes · Classic 1S Pure: No
- Screen size2.84″ vs 2″+42%
- Duress PIN / decoy walletYes · Classic 1S Pure: No
- NFC backup cardYes · Classic 1S Pure: No
- NFCYes · Classic 1S Pure: No
- Built-in batteryYes · Classic 1S Pure: No
- Warranty (months)24 vs 122×
Why is Classic 1S Pure better than Flex?
- Open-source firmwareNo · Flex: Yes
- Reproducible buildsNo · Flex: Yes
- Source code availableNo · Flex: Yes
- Weight58 g vs 18 g3.1×
- Brick / wipe PINNo · Flex: Yes
- Thickness7.7 mm vs 5.2 mm+48%
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 | No | Yes |
| Source code available | No | Yes |
| Reproducible builds | No | Yes |
| Firmware licence | Limited Use | GPLv3 |
| Upgradable firmware | Yes | Yes |
| Firmware update via | Bluetooth | USB, Bluetooth |
| Bitcoin-only firmware / edition | No | No |
| Device lock | ||
| PIN lock | Yes | Yes |
| PIN entered on the device | Yes | Yes |
| Fingerprint unlock | No | No |
| Duress PIN / decoy wallet | Yes | No |
| Brick / wipe PIN | No | Yes |
| Wipe after failed attempts | Yes | Yes |
| Time-delayed unlock | No | No |
| 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 | Yes | 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 | Yes | Yes |
| Miniscript | Yes | No |
| Message signing | Yes | — |
| Coin control | Yes | Yes |
| Own node connection | Yes | Yes |
| Tor support | Yes | Yes |
| Replace-by-fee | Yes | Yes |
| Silent Payments | No | No |
| Spending limits | No | No |
| Testnet | Yes | Yes |
| Supported assets | ||
| Altcoins & tokens | Yes | Yes |
| Bitcoin only | No | No |
| Connectivity | ||
| Signing connectivity | USB-C, Bluetooth, NFC | USB-C, Bluetooth |
| USB | Yes | Yes |
| USB-C | Yes | Yes |
| Bluetooth | Yes | Yes |
| NFC | Yes | No |
| QR code camera | No | No |
| Animated QR (UR) | No | No |
| microSD signing | No | No |
| Screen & input | ||
| Screen | Yes | Yes |
| Screen size | 2.84″ | 2″ |
| Screen type | E-Ink | OLED |
| Screen resolution | 600 × 480 | 128 × 64 |
| Touchscreen | Yes | No |
| Colour screen | No | No |
| Gorilla Glass | Yes | No |
| Controls | Touch Screen | Buttons |
| QWERTY keyboard | — | No |
| Battery & power | ||
| Built-in battery | Yes | No |
| Battery capacity | 200 mAh | — |
| Removable battery | No | — |
| Wireless charging | No | No |
| Design | ||
| Weight | 58 g | 18 g |
| Length | 78.4 mm | 86 mm |
| Width | 56.5 mm | 52 mm |
| Thickness | 7.7 mm | 5.2 mm |
| Materials | Plastic & Aluminum | Plastic |
| Water / dust resistance | No | No |
| Several colours available | Yes | No |
| Warranty (months) | 24 | 12 |
| Assembled in | Vietnam | Hong Kong |
| DIY build possible | No | No |
| Apps | ||
| Official apps | Windows, macOS, Linux, Android, iOS | Windows, macOS, Linux, Android, iOS, Browser extension |
| Desktop app | Yes | Yes |
| Mobile app | Yes | Yes |
| Works with wallet apps | Bitcoin Safe, Theya, Wasabi, Nunchuk, Electrum, Sparrow, Specter Desktop, Blockstream Green, BlueWallet, Bitcoin Keeper, Liana | Electrum, Sparrow, Specter Desktop, Blockstream Green |
| Compatible third-party wallets | 11 | 4 |
| Other features | ||
| FIDO2 / U2F security key | Yes | Yes |
| Password manager | Yes | No |
