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Block Bitkey or Ledger Flex?

The exact editions, side by side: how you’ll use them and the limits to know.

Ledger Flex

One edition

Wallet 2

Add a wallet

Wallet 3

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In short

Transaction approval (Computer) is confirmed only for Ledger Flex.

Block BitkeyOne edition

Price at Block

Ledger FlexOne edition

Price at Ledger

Approve transactions

Computer: Block Bitkey:
Support for signing is unconfirmed; Ledger Flex:
USBLedger Wallet · Bitcoin / Ethereum
iPhone: Block Bitkey:
NFCBitkey app · Bitcoin; Ledger Flex:
BluetoothLedger Wallet · Bitcoin / Ethereum
Android: Block Bitkey:
NFCBitkey app · Bitcoin; Ledger Flex:
USB · BluetoothLedger Wallet · Bitcoin / Ethereum

Where they differ

Cryptocurrencies: Block Bitkey:Bitcoin-only; Ledger Flex:Multiple cryptocurrencies
Wallet recovery: Block Bitkey:Phone, hardware and server keys with assisted recovery. Check service and country availability.; Ledger Flex:Recovery phrase

What they have in common

Controls / Display: Touchscreen
Both
Battery: Rechargeable
Both

Before you choose

Consider

Block BitkeyTwo of three keys are needed. Recovery involves your phone, cloud storage and the service, rather than a conventional recovery phrase.

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.

Apps and requirements

Show detailsHide details

Connectivity

Block Bitkey

iPhone · Android

Bitkey appNFCBitcoin

Connection requirements

Needs an NFC phone and the Bitkey app. Setup requires a cloud backup and email alerts; recovery depends on the keys and backup access you retain.

Ledger Flex

Computer

Ledger WalletUSBBitcoin / EthereumWindows · macOS · Linux

iPhone

Ledger WalletBluetoothBitcoin / Ethereum

Android

Ledger WalletUSB · BluetoothBitcoin / Ethereum

Hardware detailsDifferent: 3 · Same: 2 · Not fully recorded: 13Show details (18)Hide details

Block BitkeyLedger Flex

Display

Display type: Block Bitkey:OLED; Ledger Flex:E Ink
Screen diagonal: Block Bitkey:Not recorded; Ledger Flex:2.8″
Resolution: Block Bitkey:Not recorded; Ledger Flex:480 × 600 px
Colour mode: Block Bitkey:Not recorded; Ledger Flex:Grayscale
Shades of grey: Block Bitkey:Not recorded; Ledger Flex:16

Size and weight

Dimensions: Block Bitkey:66 × 60 × 13.6 mmDimensions as listed by the manufacturer; Ledger Flex:78.4 × 56.5 × 7.7 mmDimensions as listed by the manufacturer
Device weight: Block Bitkey:79 g; Ledger Flex:57.5 g

Power and charging

Charging methods: USB-CBoth
Battery life: Block Bitkey:Not recorded; Ledger Flex:Up to 10 hrUsage conditions not stated
Wireless charging: Block Bitkey:Not recorded; Ledger Flex:Not supported

Materials and finish

Materials: Block Bitkey:Corian Solid Surface; Ledger Flex:Not recorded

Device connections

USB port: USB-CBoth
Bluetooth version: Block Bitkey:Not recorded; Ledger Flex:5.2
NFC functions: Block Bitkey:Not recorded; Ledger Flex:Ledger Recovery Key · Ledger Security Key