Compare

NGRAVE ZERO 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

Filters

Your device: Computer

NGRAVE ZERO: This model does not match the current filters.

@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 (Computer) is confirmed only for Ledger Flex.

NGRAVE ZEROOne edition

Price at NGRAVE

Ledger FlexOne edition

Price at Ledger

Computer

Your device

Approve transactions: NGRAVE ZERO:
Support for signing is unconfirmed; Ledger Flex:
USBLedger Wallet · Bitcoin / Ethereum
Set up the wallet: NGRAVE ZERO:
Support for wallet setup is unconfirmed; Ledger Flex:
USBLedger Wallet · Bitcoin / Ethereum

Approve transactions

iPhone: NGRAVE ZERO:
QRLIQUID · Bitcoin / Ethereum; Ledger Flex:
BluetoothLedger Wallet · Bitcoin / Ethereum
Android: NGRAVE ZERO:
QRLIQUID · Bitcoin / Ethereum; Ledger Flex:
USB · BluetoothLedger Wallet · Bitcoin / Ethereum

Where they differ

Wallet recovery: NGRAVE ZERO:Perfect Key or recovery phrase, depending on setup. GRAPHENE plates are optional.; Ledger Flex:Recovery phrase

What they have in common

Cryptocurrencies: Multiple cryptocurrencies
Both
Controls / Display: Touchscreen
Both
Battery: Rechargeable
Both

Before you choose

Consider

NGRAVE ZEROA new wallet starts with Perfect Key, and ZERO can display its equivalent 24-word backup after setup. GRAPHENE is optional; you still need a computer for firmware updates.

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

NGRAVE ZERO

iPhone · Android

LIQUIDQRBitcoin / Ethereum

Ledger Flex

Computer

Ledger WalletUSBBitcoin / EthereumWindows · macOS · Linux

iPhone

Ledger WalletBluetoothBitcoin / Ethereum

Android

Ledger WalletUSB · BluetoothBitcoin / Ethereum

Hardware detailsDifferent: 5 · Same: 2 · Not fully recorded: 12Show details (19)Hide details

NGRAVE ZEROLedger Flex

Display

Display type: NGRAVE ZERO:LCD; Ledger Flex:E Ink
Screen diagonal: NGRAVE ZERO:4″; Ledger Flex:2.8″
Colour mode: NGRAVE ZERO:Colour; Ledger Flex:Grayscale
Resolution: NGRAVE ZERO:Not recorded; Ledger Flex:480 × 600 px
Shades of grey: NGRAVE ZERO:Not recorded; Ledger Flex:16

Size and weight

Dimensions: NGRAVE ZERO:125 × 70 × 13 mm; Ledger Flex:78.4 × 56.5 × 7.7 mmDimensions as listed by the manufacturer
Device weight: NGRAVE ZERO:214 g; Ledger Flex:57.5 g

Power and charging

Battery capacity: NGRAVE ZERO:1,200 mAh; Ledger Flex:Not recorded
Charging methods: USB-CBoth
Battery life: NGRAVE ZERO:Not recorded; Ledger Flex:Up to 10 hrUsage conditions not stated
Wireless charging: NGRAVE ZERO:Not recorded; Ledger Flex:Not supported

Device connections

USB port: USB-CBoth
Bluetooth version: NGRAVE ZERO:Not recorded; Ledger Flex:5.2
NFC functions: NGRAVE ZERO:Not recorded; Ledger Flex:Ledger Recovery Key · Ledger Security Key