BluetoothBitBoxApp · Bitcoin / EthereumMust stay plugged in
Android
Coinkite TAPSIGNER:
✓
NFCNunchuk · Bitcoin
Ledger Flex:
✓
USB · BluetoothLedger Wallet · Bitcoin / Ethereum
BitBox02 Nova:
✓
USBBitBoxApp · Bitcoin / EthereumPhone needs USB OTG
Where they differ
Cryptocurrencies
Coinkite TAPSIGNER:Bitcoin-only
Ledger Flex:Multiple cryptocurrencies
BitBox02 Nova:Multiple cryptocurrencies
Controls / Display
Coinkite TAPSIGNER:No controls on the walletDisplay: No device display
Ledger Flex:Touchscreen
BitBox02 Nova:Touch sensorsDisplay: Display without touch input
Wallet recovery
Coinkite TAPSIGNER:Encrypted backup file, decryption key and wallet configuration. Keep the file and key separately.
Ledger Flex:Recovery phrase
BitBox02 Nova:microSD backup and recovery phrase
Not fully confirmed
Operating power
Coinkite TAPSIGNER:Not recorded
Ledger Flex:Not recorded
BitBox02 Nova:USB power
Battery
Coinkite TAPSIGNER:No battery
Ledger Flex:Rechargeable
BitBox02 Nova:Not recorded
Before you choose
Consider
Coinkite TAPSIGNERThere is no card screen for independent review. Recovery needs the encrypted file, a separate copy of its printed decryption key and the wallet configuration; it takes place outside the card.
Ledger FlexiPhone connects by Bluetooth. Android connects by USB or Bluetooth. NFC does not replace USB or Bluetooth for ordinary transactions. Cryptocurrency support depends on the app.
BitBox02 NovaOn iPhone and iPad, Bluetooth carries the data but the wallet still needs a physical power connection. You control it by touching its edges, not the screen. BitBoxApp on iPhone and iPad guides firmware updates when a compatible version is offered.
Needs a compatible external NFC reader and smart-card support configured on the computer. Keep the encrypted backup file, its decryption key and the wallet configuration. Store the file and key separately.
iPhone · Android
NunchukNFCBitcoinConnection requirements
Needs an NFC phone and a compatible Nunchuk version. Keep the encrypted backup file, its decryption key and the wallet configuration. Store the file and key separately.
Ledger Flex
Computer
Ledger WalletUSBBitcoin / EthereumWindows · macOS · Linux
With an iPhone, plug BitBox02 Nova into the phone or another suitable power source. It uses Bluetooth to exchange data. Ethereum needs the Multi edition; the Bitcoin-only edition cannot be changed to Multi.
Android
BitBoxAppUSBBitcoin / EthereumPhone needs USB OTGConnection requirements
Your Android phone needs USB OTG support to connect to Nova over USB. Ethereum requires the Multi edition; a Bitcoin-only device cannot be changed to Multi.
