Compare

NGRAVE ZERO or Trezor Safe 3?

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

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In short

Transaction approval (iPhone) is confirmed only for NGRAVE ZERO.

NGRAVE ZEROOne edition

Price at NGRAVE

Trezor Safe 3Multi-coin edition

Price at Trezor

Approve transactions

Computer: NGRAVE ZERO:
Support for signing is unconfirmed; Trezor Safe 3:
USBTrezor Suite · Bitcoin / Ethereum
iPhone: NGRAVE ZERO:
QRLIQUID · Bitcoin / Ethereum; Trezor Safe 3:
Not supported
Android: NGRAVE ZERO:
QRLIQUID · Bitcoin / Ethereum; Trezor Safe 3:
USBTrezor Suite · Bitcoin / EthereumAndroid 12+

Where they differ

Controls / Display: NGRAVE ZERO:Touchscreen; Trezor Safe 3:Physical buttonsDisplay: Display without touch input
Wallet recovery: NGRAVE ZERO:Perfect Key or recovery phrase, depending on setup. GRAPHENE plates are optional.; Trezor Safe 3:Recovery phrase
Battery: NGRAVE ZERO:Rechargeable; Trezor Safe 3:No battery

What they have in common

Cryptocurrencies: Multiple cryptocurrencies
Both

Not fully confirmed

Operating power: NGRAVE ZERO:Not recorded; Trezor Safe 3:USB power

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.

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

NGRAVE ZERO

iPhone · Android

LIQUIDQRBitcoin / 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: 7 · Same: 1 · Not fully recorded: 7Show details (15)Hide details

NGRAVE ZEROTrezor Safe 3

Display

Display type: NGRAVE ZERO:LCD; Trezor Safe 3:OLED
Screen diagonal: NGRAVE ZERO:4″; Trezor Safe 3:0.96″
Colour mode: NGRAVE ZERO:Colour; Trezor Safe 3:Monochrome
Resolution: NGRAVE ZERO:Not recorded; Trezor Safe 3:128 × 64 px

Size and weight

Dimensions: NGRAVE ZERO:125 × 70 × 13 mm; Trezor Safe 3:59 × 32 × 7.4 mmDimensions as listed by the manufacturer
Device weight: NGRAVE ZERO:214 g; Trezor Safe 3:14 g