BluetoothBitBoxApp · Bitcoin / EthereumMust stay plugged in
Android
KeepKey:
?Support for signing is unconfirmed
Ledger Flex:
✓
USB · BluetoothLedger Wallet · Bitcoin / Ethereum
BitBox02 Nova:
✓
USBBitBoxApp · Bitcoin / EthereumPhone needs USB OTG
Where they differ
Controls / Display
KeepKey:Physical buttonsDisplay: Display without touch input
Ledger Flex:Touchscreen
BitBox02 Nova:Touch sensorsDisplay: Display without touch input
Wallet recovery
KeepKey:Recovery phrase
Ledger Flex:Recovery phrase
BitBox02 Nova:microSD backup and recovery phrase
What they have in common
Cryptocurrencies
Multiple cryptocurrencies
All three
Not fully confirmed
Operating power
KeepKey:USB power
Ledger Flex:Not recorded
BitBox02 Nova:USB power
Battery
KeepKey:Not recorded
Ledger Flex:Rechargeable
BitBox02 Nova:Not recorded
Before you choose
Consider
KeepKeyKeepKey’s current phone instructions don’t clearly explain how to send a transaction to the device for approval. For Bluetooth signing from your phone, compare Flex.
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.
Apps and requirements
Show detailsHide details
Connectivity
KeepKey
Computer
KeepKey DesktopUSBBitcoin / EthereumWindows · macOS · Linux
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.
