Compare

Foundation Passport Prime or Ledger Flex?

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

Foundation Passport Prime

One edition

Change wallet: Foundation Passport Prime

Ledger Flex

One edition

Change wallet: Ledger Flex
Add a wallet

In short

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

Approve transactions

Computer
Foundation Passport Prime:
Support for signing is unconfirmed

Sparrow · Not confirmed

Ledger Flex:
USBLedger Wallet · Bitcoin / Ethereum
iPhone
Foundation Passport Prime:
BluetoothEnvoy · Bitcoin
QREnvoy · Bitcoin

iPhone · Envoy · QR · BitcoinSupport for wallet setup is unconfirmed

Ledger Flex:
BluetoothLedger Wallet · Bitcoin / Ethereum
Android
Foundation Passport Prime:
BluetoothEnvoy · Bitcoin
QREnvoy · Bitcoin

Android · Envoy · QR · BitcoinSupport for wallet setup is unconfirmed

Ledger Flex:
USB · BluetoothLedger Wallet · Bitcoin / Ethereum

Where they differ

Wallet recovery
Foundation Passport Prime:Magic Backups needs two of three recovery parts: two are on Keycards and one is backed up through Envoy and the phone’s cloud backup. A new wallet can instead use a manual backup: any two of three physical Keycards, or recovery words.
Ledger Flex:Recovery phrase

What they have in common

Controls / Display
Touchscreen
Both
Battery
Rechargeable
Both

Not fully confirmed

Cryptocurrencies
Foundation Passport Prime:Not confirmed
Ledger Flex:Multiple cryptocurrencies

Before you choose

Consider
Foundation Passport PrimeInitial setup uses Envoy and Bluetooth. To restore existing words without Magic Backups, ask Foundation support to confirm the steps for your KeyOS version before setup. Ethereum and Solana need the separate Legacy Mode beta on a computer.
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
Foundation Passport Prime

Computer

SparrowNot confirmed
Connection requirements

Foundation lists Sparrow for multisig wallets with Prime as a cosigner. We have not confirmed the exact Prime–Sparrow import and transaction-transfer route. Check that integration with Foundation before proceeding; Passport Core or generic QR support is insufficient.

iPhone · Android

EnvoyBluetoothBitcoin
Connection requirements

For Bitcoin on a phone, Envoy connects to Prime through QuantumLink Bluetooth.

EnvoyQRBitcoinSupport for wallet setup is unconfirmed
Connection requirements

Set up Prime with Envoy over Bluetooth first. After setup, Envoy can transfer Bitcoin transaction data to and from Prime using QR codes.

Ledger Flex

Computer

Ledger WalletUSBBitcoin / EthereumWindows · macOS · Linux

iPhone

Ledger WalletBluetoothBitcoin / Ethereum

Android

Ledger WalletUSB · BluetoothBitcoin / Ethereum
Hardware detailsDifferent: 6 · Same: 2 · Not fully recorded: 12Show details (20)Hide details
Foundation Passport PrimeLedger Flex

Display

Display type
Foundation Passport Prime:IPS LCD
Ledger Flex:E Ink
Screen diagonal
Foundation Passport Prime:3.5″
Ledger Flex:2.8″
Resolution
Foundation Passport Prime:Not recorded
Ledger Flex:480 × 600 px
Colour mode
Foundation Passport Prime:Not recorded
Ledger Flex:Grayscale
Shades of grey
Foundation Passport Prime:Not recorded
Ledger Flex:16

Size and weight

Dimensions
Foundation Passport Prime:55.5 × 104.8 × 11 mmDimensions as listed by the manufacturer
Ledger Flex:78.4 × 56.5 × 7.7 mmDimensions as listed by the manufacturer
Device weight
Foundation Passport Prime:93 g
Ledger Flex:57.5 g

Power and charging

Battery capacity
Foundation Passport Prime:1,100 mAh
Ledger Flex:Not recorded
Charging methods
USB-CBoth
Battery life
Foundation Passport Prime:Not recorded
Ledger Flex:Up to 10 hrUsage conditions not stated
Wireless charging
Foundation Passport Prime:Not recorded
Ledger Flex:Not supported

Materials and finish

Materials
Foundation Passport Prime:Body: Aluminium (Anodized finish)
Ledger Flex:Not recorded

Device connections

USB port
USB-CBoth
Bluetooth version
Foundation Passport Prime:Not recorded
Ledger Flex:5.2
NFC functions
Foundation Passport Prime:Not recorded
Ledger Flex:Ledger Recovery Key · Ledger Security Key

Security and software

Security chip
Foundation Passport Prime:ATECC608C
Ledger Flex:ST33K1M5 · CC EAL6+
Device software
Foundation Passport Prime:KeyOS
Ledger Flex:Ledger OS

Processor

Controllers
Foundation Passport Prime:SAMA5D2
Ledger Flex:Not recorded

Memory

Storage space
Foundation Passport Prime:Not recorded
Ledger Flex:1.5 MB

Key dates

Released
Foundation Passport Prime:Not recorded
Ledger Flex:July 26, 2024

Official stores

Next steps
Foundation Passport PrimeOne edition

Documentation checked Oct 16, 2026

Ledger FlexOne edition

Documentation checked Oct 6, 2026

Replace Foundation Passport Prime

Our picks

Current wallets

Discontinued