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Trezor Model One 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 (iPhone) is confirmed only for Ledger Flex.

Trezor Model OneMulti-coin firmware

Ledger FlexOne edition

Price at Ledger

Approve transactions

Computer: Trezor Model One:
USBTrezor Suite · Bitcoin / Ethereum; Ledger Flex:
USBLedger Wallet · Bitcoin / Ethereum
iPhone: Trezor Model One:
Not supported; Ledger Flex:
BluetoothLedger Wallet · Bitcoin / Ethereum
Android: Trezor Model One:
USBTrezor Suite · Bitcoin / Ethereum
Android · Trezor Suite · USB · Bitcoin / EthereumSupport for wallet setup is unconfirmed; Ledger Flex:
USB · BluetoothLedger Wallet · Bitcoin / Ethereum

Where they differ

Controls / Display: Trezor Model One:Physical buttonsDisplay: Display without touch input; Ledger Flex:Touchscreen

What they have in common

Cryptocurrencies: Multiple cryptocurrencies
Both
Wallet recovery: Recovery phrase
Both

Not fully confirmed

Battery: Trezor Model One:Not confirmed; Ledger Flex:Rechargeable

Before you choose

Consider

Trezor Model OneUSB signing is supported on a computer or compatible Android phone. On iPhone, Suite can show imported accounts but cannot use Model One to sign; passphrases are entered in Suite on the connected computer or phone.

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

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Connectivity

Trezor Model One

Computer

Trezor SuiteUSBBitcoin / EthereumWindows · macOS · Linux

Connection requirements

For Bitcoin and ordinary ETH transfers on Ethereum, use current Trezor Suite and compatible firmware. ETH requires Universal firmware; Bitcoin-only firmware does not support it.

Android

Trezor SuiteUSBBitcoin / EthereumSupport for wallet setup is unconfirmed

Connection requirements

USB signing in the current Trezor Suite Android app requires Android 12 or later and a data cable or adapter matching the phone and Model One’s micro-USB port. Fresh-device setup has not been established here because the official setup instructions conflict. ETH requires Universal firmware.

Ledger Flex

Computer

Ledger WalletUSBBitcoin / EthereumWindows · macOS · Linux

iPhone

Ledger WalletBluetoothBitcoin / Ethereum

Android

Ledger WalletUSB · BluetoothBitcoin / Ethereum

Hardware detailsDifferent: 8 · Same: 0 · Not fully recorded: 14Show details (22)Hide details

Trezor Model OneLedger Flex

Display

Display type: Trezor Model One:OLED; Ledger Flex:E Ink
Screen diagonal: Trezor Model One:0.96″; Ledger Flex:2.8″
Resolution: Trezor Model One:128 × 64 px; Ledger Flex:480 × 600 px
Colour mode: Trezor Model One:Monochrome; Ledger Flex:Grayscale
Shades of grey: Trezor Model One:Not recorded; Ledger Flex:16

Size and weight

Dimensions: Trezor Model One:60 × 30 × 6 mmDimensions as listed by the manufacturer; Ledger Flex:78.4 × 56.5 × 7.7 mmDimensions as listed by the manufacturer
Device weight: Trezor Model One:12 g; Ledger Flex:57.5 g

Power and charging

Battery life: Trezor Model One:Not recorded; Ledger Flex:Up to 10 hrUsage conditions not stated
Charging methods: Trezor Model One:Not recorded; Ledger Flex:USB-C
Wireless charging: Trezor Model One:Not recorded; Ledger Flex:Not supported

Materials and finish

Materials: Trezor Model One:Casing: PC/ABS; Ledger Flex:Not recorded

Device connections

USB port: Trezor Model One:Micro-USB; Ledger Flex:USB-C
Bluetooth version: Trezor Model One:Not recorded; Ledger Flex:5.2
NFC functions: Trezor Model One:Not recorded; Ledger Flex:Ledger Recovery Key · Ledger Security Key

Security and software

Security chip: Trezor Model One:No Secure Element; Ledger Flex:ST33K1M5 · CC EAL6+
Conformity marks: Trezor Model One:CE · RoHS; Ledger Flex:Not recorded
Device software: Trezor Model One:Not recorded; Ledger Flex:Ledger OS

Processor

Core and clock speed: Trezor Model One:ARM Cortex-M3 · 120 MHz; Ledger Flex:Not recorded
Controllers: Trezor Model One:STM32F207; Ledger Flex:Not recorded