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Trezor Safe 3 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 Safe 3Bitcoin-only edition

Price at Trezor

Ledger FlexOne edition

Price at Ledger

Approve transactions

Computer: Trezor Safe 3:
USBTrezor Suite · Bitcoin; Ledger Flex:
USBLedger Wallet · Bitcoin / Ethereum
iPhone: Trezor Safe 3:
Not supported; Ledger Flex:
BluetoothLedger Wallet · Bitcoin / Ethereum
Android: Trezor Safe 3:
USBTrezor Suite · BitcoinAndroid 12+; Ledger Flex:
USB · BluetoothLedger Wallet · Bitcoin / Ethereum

Where they differ

Cryptocurrencies: Trezor Safe 3:Bitcoin-only; Ledger Flex:Multiple cryptocurrencies
Controls / Display: Trezor Safe 3:Physical buttonsDisplay: Display without touch input; Ledger Flex:Touchscreen
Battery: Trezor Safe 3:No battery; Ledger Flex:Rechargeable

What they have in common

Wallet recovery: Recovery phrase
Both

Not fully confirmed

Operating power: Trezor Safe 3:USB power; Ledger Flex:Not recorded

Before you choose

Consider

Trezor Safe 3USB signing on computer or Android; the iPhone app does not let this model approve transactions.

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

Trezor Safe 3

Computer

Trezor SuiteUSBBitcoinWindows · macOS · Linux

Android

Trezor SuiteUSBBitcoinAndroid 12+

Connection requirements

Setup and signing use the Trezor Suite app on Android 12 or later over USB. Your phone needs USB-C support and a suitable data cable. Check that Suite supports the asset and network you want to use; the Bitcoin-only edition is limited to Bitcoin.

Ledger Flex

Computer

Ledger WalletUSBBitcoin / EthereumWindows · macOS · Linux

iPhone

Ledger WalletBluetoothBitcoin / Ethereum

Android

Ledger WalletUSB · BluetoothBitcoin / Ethereum

Hardware detailsDifferent: 10 · Same: 1 · Not fully recorded: 10Show details (21)Hide details

Trezor Safe 3Ledger Flex

Display

Display type: Trezor Safe 3:OLED; Ledger Flex:E Ink
Screen diagonal: Trezor Safe 3:0.96″; Ledger Flex:2.8″
Resolution: Trezor Safe 3:128 × 64 px; Ledger Flex:480 × 600 px
Colour mode: Trezor Safe 3:Monochrome; Ledger Flex:Grayscale
Shades of grey: Trezor Safe 3:Not recorded; Ledger Flex:16

Size and weight

Dimensions: Trezor Safe 3:59 × 32 × 7.4 mmDimensions as listed by the manufacturer; Ledger Flex:78.4 × 56.5 × 7.7 mmDimensions as listed by the manufacturer
Device weight: Trezor Safe 3:14 g; Ledger Flex:57.5 g

Power and charging

Battery life: Trezor Safe 3:No battery; Ledger Flex:Up to 10 hrUsage conditions not stated
Charging methods: Trezor Safe 3:No battery; Ledger Flex:USB-C
Wireless charging: Trezor Safe 3:No battery; Ledger Flex:Not supported

Materials and finish

Materials: Trezor Safe 3:Casing: PMMA plastic · Backplate: Aluminium (Anodized finish); Ledger Flex:Not recorded

Device connections

USB port: USB-CBoth
Bluetooth version: Trezor Safe 3:Not recorded; Ledger Flex:5.2
NFC functions: Trezor Safe 3:Not recorded; Ledger Flex:Ledger Recovery Key · Ledger Security Key