Compare

Ledger Flex or Trezor Safe 3?

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

@media(max-width:700px){.stage-comparison [data-column]{display:block!important;order:initial!important}.stage-comparison .stage-row{grid-template-columns:repeat(var(--comparison-columns),minmax(0,1fr))}.stage-comparison .stage-table-head>.stage-label,.stage-comparison .stage-column-chips{display:none}.stage-comparison .stage-table{--rule-columns:var(--comparison-columns)}.stage-comparison .stage-note-name{position:static;width:auto;height:auto;clip-path:none}.stage-comparison .stage-colhead{display:flex!important}.stage-comparison .stage-label{grid-column:1/-1}.stage-comparison .stage-store-row{grid-template-columns:1fr}.stage-comparison .stage-hardware .hardware-row{grid-template-columns:repeat(var(--comparison-columns),minmax(0,1fr));display:grid}.stage-comparison .stage-hardware .hardware-row dt{grid-column:1/-1}.stage-comparison .stage-hardware.no-mobile-data,.stage-comparison .stage-hardware .hardware-group.no-mobile-data{display:block}} /* Only the real no-script, compact, three-selection view uses named full-width entries. */ @media(max-width:700px){ .stage-comparison[data-count="3"] .stage-row{grid-template-columns:minmax(0,1fr)} .stage-comparison[data-count="3"] .stage-table{--rules:none} .stage-comparison[data-count="3"] .stage-table-head{position:static} .stage-comparison[data-count="3"] .stage-colhead{container-type:normal;border-bottom:1px solid var(--line)} .stage-comparison[data-count="3"] .stage-colhead small{display:block} .stage-comparison[data-count="3"] .stage-colhead-identity>span>a{overflow-wrap:anywhere} .stage-comparison[data-count="3"] .stage-cell-model-context{position:static!important;display:block;width:auto!important;height:auto!important;padding:0!important;margin:0 0 4px!important;overflow:visible!important;clip:auto!important;clip-path:none!important;white-space:normal!important;font-weight:600} .stage-comparison[data-count="3"] .stage-fact-row>[data-column]+[data-column]{border-top:1px solid var(--line)} .stage-comparison[data-count="3"] .stage-hardware .hardware-group{display:block} .stage-comparison[data-count="3"] .stage-hardware .hardware-row,.stage-comparison[data-count="3"] .stage-hardware .hardware-reading{grid-template-columns:minmax(0,1fr)} .stage-comparison[data-count="3"] .stage-hardware .hardware-model-context{position:static;display:block;width:auto;height:auto;overflow:visible;clip-path:none;white-space:normal;margin-bottom:4px;font-weight:600} .stage-comparison[data-count="3"] .stage-hardware .hardware-row>[data-column]+[data-column]{border-top:1px solid var(--line)} .stage-comparison[data-count="3"] .stage-hardware .differences-only .hardware-group.same-all,.stage-comparison[data-count="3"] .stage-hardware .differences-only .hardware-row.same-all{display:none} }

In short

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

Ledger FlexOne edition

Price at Ledger

Trezor Safe 3Multi-coin edition

Price at Trezor

Approve transactions

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

Where they differ

Controls / Display: Ledger Flex:Touchscreen; Trezor Safe 3:Physical buttonsDisplay: Display without touch input
Battery: Ledger Flex:Rechargeable; Trezor Safe 3:No battery

What they have in common

Cryptocurrencies: Multiple cryptocurrencies
Both
Wallet recovery: Recovery phrase
Both

Not fully confirmed

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

Before you choose

Consider

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.

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

Apps and requirements

Show detailsHide details

Connectivity

Ledger Flex

Computer

Ledger WalletUSBBitcoin / EthereumWindows · macOS · Linux

iPhone

Ledger WalletBluetoothBitcoin / Ethereum

Android

Ledger WalletUSB · BluetoothBitcoin / Ethereum

Trezor Safe 3

Computer

Trezor SuiteUSBBitcoin / EthereumWindows · macOS · Linux

Android

Trezor SuiteUSBBitcoin / EthereumAndroid 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.

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

Ledger FlexTrezor Safe 3

Display

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

Memory

Storage space: Ledger Flex:1.5 MB; Trezor Safe 3:Not recorded

Size and weight

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

Power and charging

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

Device connections

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