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Block Bitkey, Ledger Flex or Blockstream Jade Plus?

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 Ledger Flex and Blockstream Jade Plus.

Block BitkeyOne edition

Price at Block

Ledger FlexOne edition

Price at Ledger

Blockstream Jade PlusOne edition

Price at Blockstream

Bitkey

Flex

Approve transactions

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

Where they differ

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

What they have in common

Battery: Rechargeable
All three

Not fully confirmed

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

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.

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

Apps and requirements

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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

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.

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

Block BitkeyLedger FlexBlockstream Jade Plus

Display

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

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; Blockstream Jade Plus:65 × 30 × 12 mmDimensions as listed by the manufacturer
Device weight: Block Bitkey:79 g; Ledger Flex:57.5 g; Blockstream Jade Plus:Not recorded

Power and charging

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

Materials and finish

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

Device connections

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

Memory

Storage space: Block Bitkey:Not recorded; Ledger Flex:1.5 MB; Blockstream Jade Plus:Not recorded

Security and software

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