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Block Bitkey, Blockstream Jade Plus or Ledger Flex?

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

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In short

Transaction approval (Computer) is confirmed only for Blockstream Jade Plus and Ledger Flex.

Block BitkeyOne edition

Price at Block

Blockstream Jade PlusOne edition

Price at Blockstream

Ledger FlexOne edition

Price at Ledger

Bitkey

Jade Plus

Approve transactions

Computer: Block Bitkey:
Support for signing is unconfirmed; Blockstream Jade Plus:
USBBlockstream app · Bitcoin
QRSparrow · BitcoinWebcam required for QR; Ledger Flex:
USBLedger Wallet · Bitcoin / Ethereum
iPhone: Block Bitkey:
NFCBitkey app · Bitcoin; Blockstream Jade Plus:
BluetoothBlockstream app · Bitcoin; Ledger Flex:
BluetoothLedger Wallet · Bitcoin / Ethereum
Android: Block Bitkey:
NFCBitkey app · Bitcoin; Blockstream Jade Plus:
USB · BluetoothBlockstream app · Bitcoin; Ledger Flex:
USB · BluetoothLedger Wallet · Bitcoin / Ethereum

Where they differ

Controls / Display: Block Bitkey:Touchscreen; Blockstream Jade Plus:Physical buttonsDisplay: Display without touch input; Ledger Flex:Touchscreen
Wallet recovery: Block Bitkey:Phone, hardware and server keys with assisted recovery. Check service and country availability.; Blockstream Jade Plus:Recovery phrase; Ledger Flex:Recovery phrase

What they have in common

Battery: Rechargeable
All three

Not fully confirmed

Cryptocurrencies: Block Bitkey:Bitcoin-only; Blockstream Jade Plus:Not confirmed; Ledger Flex:Multiple cryptocurrencies

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.

Blockstream Jade PlusThe standard firmware supports Bitcoin and Liquid. Bitcoin-only firmware is a separate option.

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.

Blockstream Jade Plus

Computer

Blockstream appUSBBitcoinWindows · macOS · Linux

Connection requirements

This workflow uses Bitcoin mainnet in the Blockstream app. The standard firmware also supports Liquid, so it is not Bitcoin-only.

SparrowQRBitcoinWindows · macOS · LinuxWebcam required for QR

Connection requirements

Prepare Jade QR mode and use a webcam with Sparrow. QR signing supports Bitcoin, not Liquid.

iPhone

Blockstream appBluetoothBitcoin

Connection requirements

This workflow uses Bitcoin mainnet in the Blockstream app. The standard firmware also supports Liquid, so it is not Bitcoin-only.

Android

Blockstream appUSB · BluetoothBitcoin

Connection requirements

This workflow uses Bitcoin mainnet in the Blockstream app. The standard firmware also supports Liquid, so it is not Bitcoin-only.

Ledger Flex

Computer

Ledger WalletUSBBitcoin / EthereumWindows · macOS · Linux

iPhone

Ledger WalletBluetoothBitcoin / Ethereum

Android

Ledger WalletUSB · BluetoothBitcoin / Ethereum

Hardware detailsDifferent: 2 · Same: 2 · Not fully recorded: 15Show details (19)Hide details

Block BitkeyBlockstream Jade PlusLedger Flex

Display

Display type: Block Bitkey:OLED; Blockstream Jade Plus:LCD; Ledger Flex:E Ink
Screen diagonal: Block Bitkey:Not recorded; Blockstream Jade Plus:1.9″; Ledger Flex:2.8″
Resolution: Block Bitkey:Not recorded; Blockstream Jade Plus:320 × 170 px; Ledger Flex:480 × 600 px
Colour mode: Block Bitkey:Not recorded; Blockstream Jade Plus:Colour; Ledger Flex:Grayscale
Shades of grey: Block Bitkey:Not recorded; Blockstream Jade Plus:Not recorded; Ledger Flex:16

Size and weight

Dimensions: Block Bitkey:66 × 60 × 13.6 mmDimensions as listed by the manufacturer; Blockstream Jade Plus:65 × 30 × 12 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; Blockstream Jade Plus:Not recorded; Ledger Flex:57.5 g

Power and charging

Charging methods: USB-CAll three
Battery capacity: Block Bitkey:Not recorded; Blockstream Jade Plus:280 mAh; Ledger Flex:Not recorded
Battery life: Block Bitkey:Not recorded; Blockstream Jade Plus:Not recorded; Ledger Flex:Up to 10 hrUsage conditions not stated
Wireless charging: Block Bitkey:Not recorded; Blockstream Jade Plus:Not recorded; Ledger Flex:Not supported

Materials and finish

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

Device connections

USB port: USB-CAll three
Bluetooth version: Block Bitkey:Not recorded; Blockstream Jade Plus:Not recorded; Ledger Flex:5.2
NFC functions: Block Bitkey:Not recorded; Blockstream Jade Plus:Not recorded; Ledger Flex:Ledger Recovery Key · Ledger Security Key

Security and software

Security chip: Block Bitkey:Not recorded; Blockstream Jade Plus:No Secure Element; Ledger Flex:ST33K1M5 · CC EAL6+
Device software: Block Bitkey:Not recorded; Blockstream Jade Plus:Not recorded; Ledger Flex:Ledger OS