Compare

KeepKey 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

@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.

KeepKeyOne edition

Price at KeepKey

Ledger FlexOne edition

Price at Ledger

Approve transactions

Computer: KeepKey:
USBKeepKey Desktop · Bitcoin / Ethereum; Ledger Flex:
USBLedger Wallet · Bitcoin / Ethereum
iPhone: KeepKey:
Support for signing is unconfirmed; Ledger Flex:
BluetoothLedger Wallet · Bitcoin / Ethereum
Android: KeepKey:
Support for signing is unconfirmed; Ledger Flex:
USB · BluetoothLedger Wallet · Bitcoin / Ethereum

Where they differ

Controls / Display: KeepKey: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

Operating power: KeepKey:USB power; Ledger Flex:Not recorded
Battery: KeepKey:Not recorded; Ledger Flex:Rechargeable

Before you choose

Consider

KeepKeyKeepKey’s current phone instructions don’t clearly explain how to send a transaction to the device for approval. For Bluetooth signing from your phone, compare Flex.

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

KeepKey

Computer

KeepKey DesktopUSBBitcoin / EthereumWindows · macOS · Linux

Ledger Flex

Computer

Ledger WalletUSBBitcoin / EthereumWindows · macOS · Linux

iPhone

Ledger WalletBluetoothBitcoin / Ethereum

Android

Ledger WalletUSB · BluetoothBitcoin / Ethereum

Hardware detailsDifferent: 3 · Same: 0 · Not fully recorded: 16Show details (19)Hide details

KeepKeyLedger Flex

Display

Display type: KeepKey:OLED; Ledger Flex:E Ink
Resolution: KeepKey:256 × 64 px; Ledger Flex:480 × 600 px
Screen diagonal: KeepKey:Not recorded; Ledger Flex:2.8″
Colour mode: KeepKey:Not recorded; Ledger Flex:Grayscale
Shades of grey: KeepKey:Not recorded; Ledger Flex:16

Power and charging

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

Materials and finish

Materials: KeepKey:Body: Aluminium; Ledger Flex:Not recorded

Security and software

Security chip: KeepKey:No Secure Element; Ledger Flex:ST33K1M5 · CC EAL6+
Device software: KeepKey:Not recorded; Ledger Flex:Ledger OS

Processor

Controllers: KeepKey:Sources disagree; Ledger Flex:Not recorded

Memory

Storage space: KeepKey:Not recorded; Ledger Flex:1.5 MB

Size and weight

Dimensions: KeepKey:Not recorded; Ledger Flex:78.4 × 56.5 × 7.7 mmDimensions as listed by the manufacturer
Device weight: KeepKey:Not recorded; Ledger Flex:57.5 g

Device connections

USB port: KeepKey:Not recorded; Ledger Flex:USB-C
Bluetooth version: KeepKey:Not recorded; Ledger Flex:5.2
NFC functions: KeepKey:Not recorded; Ledger Flex:Ledger Recovery Key · Ledger Security Key