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Trezor Safe 3

A button-operated Trezor for people who prefer a wired setup and do not need a touchscreen.

Edition

Bitcoin and other coins · Security-key sign-in

Multi-coin editionCheck price at TrezorCompareBitBox02 and Flex
Trezor Safe 3

Approve transactions with

  • Computer: Approve transactions
  • iPhone: Transaction signing not supported
  • Android: Approve transactions

Controls

Physical buttons

Backup

Recovery phrase

Power

USB power

Is it right for you?

Is this the right wallet for you?

A good fit if

You prefer physical buttons and plan to use your wallet with a computer or Android phone over USB. There is no battery to keep charged.

Consider another model if

You want to send from an iPhone, or prefer a touchscreen for entering a PIN and reviewing details. Safe 3 does not approve transactions with an iPhone.

Worth comparing

Phones and computers

Check compatibility with your phone or computer.

Check the app and connection for each device. Setup and transaction signing are confirmed separately.

Computer

Trezor Suite

USB

Windows · macOS · Linux

  • Set up the wallet
  • Approve transactions
More wallets for computers

iPhone

  • This hardware wallet cannot be set up with an iPhone.
  • This hardware wallet cannot approve transactions with an iPhone.
More wallets for iPhone

Android

Trezor Suite

USB

  • Android 12 or later
  • Set up the wallet
  • Approve transactions
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.

More wallets for Android

Day to day

Living with Trezor Safe 3

What decides the purchase, then each owner task in the order you’ll meet it.

Before you buy

Hardware, backup and editions

Screen and two buttonsTry it

Two buttons, no touchscreen

You check each address and payment on Safe 3’s own screen, and confirm with its two buttons.

Enter your PIN on Safe 3; recovery words go there during checks or restoration. Passphrases can also be entered in Suite.

Universal or Bitcoin-only

Bitcoin-only: no easy way back

Choose carefully: the Bitcoin-only edition has no ordinary switch back to Universal.

Switching firmware type on a Universal device wipes it. Check your backup and passphrase first.

Website sign-in

FIDO2 and U2F on Universal

With Universal firmware, Safe 3 also works as a FIDO2 or U2F security key.

Unavailable with Bitcoin-only firmware, even on a Universal device.

Size, power and build

USB power, no charging routine

No battery to charge: Safe 3 runs on USB power while it’s plugged in.

Your backup

Write your own backup offline

The backup you write down is what restores the wallet if it’s lost or erased.

Older units may default to 12 words, newer ones to 20.

In the box

Check the cable fits your host

Check the included cable against your computer or phone before setup.

First day

Getting ready to use it

Set up a new Safe 3, 8 steps

Stop if the seal is damaged

Check the seal, let Suite install firmware, then write down your backup and set a PIN on Safe 3.

Seal missing or damaged, or words already on the cards? Stop and contact Trezor.

Passphrase wallet, 7 stepsOptional

Optional · can’t be recovered

An optional passphrase opens a separate wallet; restoring it needs both passphrase and backup.

Trezor can’t recover a forgotten passphrase, and one different character opens a different wallet.

Accounts and networks, 2 steps

Accounts belong to networks

Each account belongs to one network; you can add more than one account on that network.

Confirm the exact asset, network and app in Trezor’s coin list before transferring.

Every day

Each time you receive or pay

Receive or withdraw, 3 steps

Verify the address on Safe 3

Compare the full address on Safe 3 with the final address you paste or share.

The sender must use the same network as your receiving account.

Check, approve and send, 5 steps

Approve on Safe 3, send in Suite

Approve the transaction on Safe 3, then send it from Suite.

Check the full address, amount and fee on Safe 3. You can cancel until you broadcast.

Now and then

Before an update or a reset

Check your backup, 3 steps

Doesn’t erase · on a computer

Check your written backup against Safe 3 without erasing the wallet.

It doesn’t test your passphrase, or whether another wallet accepts the same backup format.

Update firmware, 3 steps

Check your backup first

Use the firmware update offered in Suite; it handles the download and installation.

Check your backup first: an interrupted installation can erase the device.

If something goes wrong

Lost, wiped, forgotten or failed

Forgot your PIN

Reset erases it: backup first

Getting back in means resetting Safe 3, which erases it, then restoring from your backup.

Don’t reset until you have your backup and any passphrase the wallet needs.

Backup missing or invalid

Don’t wipe it: move funds first

If Safe 3 can still approve payments, move the funds to a new wallet with a checked backup.

Don’t wipe or update the device while it’s your only way to approve those payments.

Every topic in full

Before you buy · 1 of 16

Screen and two buttons

You check each address and payment on Safe 3’s own screen, and confirm with its two buttons.

Enter your PIN on Safe 3; recovery words go there during checks or restoration. Passphrases can also be entered in Suite.

Try Trezor’s example PIN

Practice with 69352, never your own PIN. Left and Right move; press Both to select. Choose ENTER to end this exercise at ENTER NEW PIN.

Current choice: 6

Current choice: 6

Interactive illustration.

What you check on the screen

Receiving
Compare the full destination address after pasting it, or before sharing it with a sender.
Sending
Compare the full recipient address, amount and fee before approving.

What you enter

PIN
On Safe 3. It unlocks this device.
Recovery words
On Safe 3, during a backup check or restoration.
Passphrase
On Safe 3, or in Suite if you prefer.

Before you buy · 2 of 16

Universal or Bitcoin-only

Choose carefully: the Bitcoin-only edition has no ordinary switch back to Universal.

Switching firmware type on a Universal device wipes it. Check your backup and passphrase first.

Choose Universal if you might manage other supported cryptocurrencies later.

Multi-coin edition
  • CoinsYes: Bitcoin and other supported assets
  • Security keyYes: FIDO2 and U2F
  • Changing laterCaution: Switch in Suite; it wipes the device
Check price at Trezor
Bitcoin-only edition
  • CoinsYes: Bitcoin only
  • Security keyNo: Not available
  • Changing laterCaution: Advanced manual install only
Check price at Trezor

What each change means

To Bitcoin-only firmware
Other assets stay on their networks; Suite stops showing those accounts until you return to Universal firmware with the same wallet.
From the Bitcoin-only edition
No Switch to Universal button. Trezor’s advanced manual installation can erase the device and may leave it unusable.

Go further

Before you buy · 3 of 16

Website sign-in

With Universal firmware, Safe 3 also works as a FIDO2 or U2F security key.

Unavailable with Bitcoin-only firmware, even on a Universal device.

Two ways to sign in

FIDO2
Passwordless sign-in on services that offer it.
U2F
A second factor alongside your password.

Go further

Before you buy · 4 of 16

Size, power and build

No battery to charge: Safe 3 runs on USB power while it’s plugged in.

To scale beside an 85.6 × 54 mm bank card.

Hardware details

Display type
OLED
Screen diagonal
0.96″
Resolution
128 × 64 px
Colour mode
Monochrome
Dimensions
59 × 32 × 7.4 mm (Dimensions as listed by the manufacturer)
Device weight
14 g
Battery
No battery
Operating power
USB power
Materials
Casing: PMMA plastic · Backplate: Aluminium (Anodized finish)
USB port
USB-C
Security chip
CC EAL6+
Conformity marks
CE · RoHS
Core and clock speed
ARM Cortex-M4 · 180 MHz
Operating temperature
-20 °C … 60 °C

Before you buy · 5 of 16

Your backup

The backup you write down is what restores the wallet if it’s lost or erased.

Older units may default to 12 words, newer ones to 20.

Only the newer 20-word SLIP39 format can add a multi-share backup directly. Backups created before June 2024 cannot; neither can 12- or 24-word BIP39 backups.

An additional backup, not a replacement

Adding a multi-share backup keeps the same wallet and leaves the original backup valid. Keep it private; don’t mix shares from separate backup sets.

Go further

Before you buy · 6 of 16

In the box

Check the included cable against your computer or phone before setup.

What’s included

Trezor Safe 3

  • 1 × Trezor Safe 3
  • 1 × USB-C to USB-C cable
  • 2 × Recovery word card (Space for 20 words)
  • 1 × Guide
  • Stickers

Trezor Safe 3 Bitcoin-only

  • 1 × Trezor Safe 3
  • 1 × USB-C to USB-C cable
  • 2 × Recovery word card (Space for 20 words)
  • 1 × Guide
  • Stickers

First day · 7 of 16

Set up a new Safe 3

Check the seal, let Suite install firmware, then write down your backup and set a PIN on Safe 3.

Seal missing or damaged, or words already on the cards? Stop and contact Trezor.

Creating a new wallet generates a new backup. To restore an existing wallet onto a new or wiped Safe 3, choose recovery instead.

You’ll need

  • A compatible computer or Android phone, and a USB data cable
  • Blank backup cards and a pen
  • Trezor Suite from Trezor’s official site

Steps

  1. Package

    Step 1:Check the package

    Check that the port seal is intact and the backup cards are blank. Peeling an intact seal normally leaves VOID residue.

    Seal missing or damaged on arrival, or cards already filled in? Stop and contact Trezor through its authenticity guide.

  2. You · USB

    Step 2:Install Suite and connect

    Get Trezor Suite from Trezor’s official site and connect Safe 3.

  3. In Suite

    Step 3:Firmware and authenticity

    Install firmware and start the authenticity check in Suite, then follow the prompts on Safe 3.

  4. In Suite

    Step 4:Create a new wallet

    ComputerCreate a new wallet

    AndroidGet started

    Restoring an existing wallet instead? Restore from your backup

  5. In Suite

    Step 5:Choose your backup type

    Check the backup option before continuing.

    Default formats and multiple shares Your backup

  6. On Safe 3

    Step 6:Confirm wallet creation

    Confirm Create wallet on Safe 3 to generate a new wallet.

  7. On paper

    Step 7:Write down the words

    Write the words Safe 3 shows, in order. Keep them private and offline.

  8. On Safe 3

    Step 8:Check the words and set a PIN

    Complete the word check. For PIN entry, left and right move; both together select.

Never type recovery words into Suite, a website or a support chat.

Go further

First day · 8 of 16 · Optional

Passphrase wallet

An optional passphrase opens a separate wallet; restoring it needs both passphrase and backup.

Trezor can’t recover a forgotten passphrase, and one different character opens a different wallet.

Use the standard wallet unless you’ve deliberately chosen a passphrase wallet. A passphrase is not your PIN.

You’ll need

  • A checked backup of the standard wallet
  • Your passphrase, written privately and offline

Check your backup first

Steps

  1. In Suite

    Step 1:Turn on passphrase wallets

    ComputerSettings → Device → Use Passphrase wallets. Then, in the wallet switcher: + Passphrase wallet → New passphrase, or Open previously used.

    AndroidWallet menu → Device settings → Wallet backup & passphrase, and turn it on. Then Open passphrase from the wallet menu.

  2. You

    Step 2:Choose where to enter it

    Choose Enter passphrase on Trezor for device entry, or type it in Suite.

  3. On Safe 3

    Step 3:Check it before confirming

    Check it on Safe 3 before confirming: letters, capitals and spaces all count.

  4. In Suite

    Step 4:Show a check address

    Before funding it, open Receive → Verify in your coin’s first account.

  5. On paper

    Step 5:Note the check address

    Read the address on Safe 3. Write the coin and its last eight characters beside your passphrase.

  6. In Suite

    Step 6:Eject both wallets

    ComputerThe eject icon on each wallet card in the top-left wallet menu.

    AndroidSettings → Eject wallets, then the eject icon.

  7. In Suite

    Step 7:Reopen and compare

    Reopen from your written passphrase, show the same first address on Safe 3, and compare its last eight characters with your note.

An empty wallet isn’t proof of a typo

Suite can’t tell an intentional empty wallet from a mistyped passphrase. This check proves you can reopen it; payments still need full-address checks.

Go further

First day · 9 of 16

Accounts and networks

Each account belongs to one network; you can add more than one account on that network.

Confirm the exact asset, network and app in Trezor’s coin list before transferring.

You’ll need

  • The standard or passphrase wallet you want, already open

Steps

  1. In Suite

    Step 1:Add an account

    Add an account on the asset’s network.

    ComputerThe plus next to Accounts

    AndroidMy assets → the plus

  2. In Suite

    Step 2:Missing from Send or Receive?

    Check that its network is enabled.

    ComputerSettings → Networks

A matching ticker isn’t proof

Address shapes and tickers can look alike across networks. Trezor’s coin list shows which asset, network and app work together.

Go further

Every day · 10 of 16

Receive or withdraw

Compare the full address on Safe 3 with the final address you paste or share.

The sender must use the same network as your receiving account.

You’ll need

  • Safe 3 connected and unlocked
  • The receiving account on the sender’s network

Steps

  1. In Suite

    Step 1:Open Receive

    Choose the account on the sender’s network and open Receive.

  2. In Suite

    Step 2:Show the address on Safe 3

    Choose Verify to display the full address on the device.

  3. You

    Step 3:Compare the final destination

    From your exchange

    Paste into its destination field, then compare the whole pasted address with Safe 3. Select the matching network. Stop if anything differs.

    Someone paying you

    Compare the address you’ll share with Safe 3. Send it with the network; ask the sender to check their final destination.

After you share it

You can unplug Safe 3; funds arrive without it. Suite may show the payment as unconfirmed at first. A new Bitcoin address helps avoid linking payments; older ones still receive.

Never ask a sender for their recovery words, or send yours.

Go further

Every day · 11 of 16

Check, approve and send

Approve the transaction on Safe 3, then send it from Suite.

Check the full address, amount and fee on Safe 3. You can cancel until you broadcast.

You’ll need

  • Safe 3 connected and unlocked, with the intended wallet open
  • The recipient’s original payment instructions: address and network

Steps

  1. In Suite

    Step 1:Start the payment

    Open the account holding the funds and choose Send. For a token, choose it within its network’s account.

  2. In Suite

    Step 2:Enter the details

    Match the account’s and recipient’s networks. Paste their address from original instructions into Suite’s Send form, never from transaction history; enter amount and fee.

    ComputerReview & send

    AndroidReview and sign

  3. On Safe 3

    Step 3:Compare on Safe 3

    Compare the full address with the original, and check the amount and fee. Cancel if anything is wrong or unclear.

  4. On Safe 3

    Step 4:Approve

    Approving with the buttons signs the payment. It isn’t sent yet.

  5. In Suite

    Step 5:Broadcast

    This sends it. Then follow it in the account’s history.

    ComputerSend

    AndroidSend transaction

Go further

Now and then · 12 of 16

Check your backup

Check your written backup against Safe 3 without erasing the wallet.

It doesn’t test your passphrase, or whether another wallet accepts the same backup format.

Trezor’s Safe 3 steps for this use a computer.

You’ll need

  • A computer with Trezor Suite
  • Safe 3 set up, and its PIN
  • Your backup, or enough shares to meet a multi-share threshold

Steps

  1. In Suite

    Step 1:Start the check

    With Safe 3 unlocked, open Settings → Device → Wallet backup → Check backup. Acknowledge the explanation, then Start.

  2. On Safe 3

    Step 2:Enter the words

    Enter the PIN, choose the word count and enter the words in order: left and right move, both together select.

  3. On Safe 3

    Step 3:Read the result

    The result appears on Safe 3.

If the check fails

Check the spelling, order and selected words. To leave without wiping: at the Backup check screen press left, scroll down with right, then press right under Cancel.

Backup missing or invalid

Go further

Now and then · 13 of 16

Update firmware

Use the firmware update offered in Suite; it handles the download and installation.

Check your backup first: an interrupted installation can erase the device.

A Suite app update is not a firmware update. Firmware arrives through Suite on a computer or an Android phone.

You’ll need

  • A checked backup you can find
  • Any passphrase your wallet needs
  • The USB data cable, connected throughout

Check your backup first

Steps

  1. In Suite

    Step 1:Start the update

    ComputerUpdate now in Suite’s notification, or Settings → Device → the firmware update → Install firmware.

    AndroidUpdate in the notification → Update firmware, then acknowledge the backup reminder.

  2. On Safe 3

    Step 2:Confirm on Safe 3

    Confirm the prompts, including a restart into bootloader mode if asked.

  3. In Suite

    Step 3:Let it finish

    Keep the cable connected until installation finishes.

    AndroidAfter restarting, Suite may ask you to reconnect and enter your PIN on Safe 3.

    If an interrupted update erased the wallet: reconnect, finish the official firmware installation, then restore from your backup.

    Restore from your backup

Not a normal update

Switching between Universal and Bitcoin-only firmware, or installing a firmware file by hand, is a separate operation.

Universal or Bitcoin-only

Go further

If something goes wrong · 14 of 16

Restore from your backup

Restore onto a new or wiped Safe 3 with your recorded backup, plus any passphrase you used.

Trezor’s Safe 3 steps for this use a computer.

Supported restore formats

BIP39
12, 18 or 24 words.
SLIP39
20 words per share; use the required number of shares for a multi-share backup.

You’ll need

  • Your backup words, or enough shares
  • Any passphrase you used, exactly as written
  • A computer with Trezor Suite

Steps

  1. In Suite

    Step 1:Start recovery

    Connect Safe 3 to Suite on a computer, install firmware if asked, then Recover wallet → Start recovery.

  2. On Safe 3

    Step 2:Enter the words on Safe 3

    Choose your word count and enter the words in their original order with the buttons and word suggestions.

  3. In Suite

    Step 3:Reopen the right wallet

    If you used a passphrase, reopen that wallet with the exact same spelling, capitals and spaces.

  4. In Suite

    Step 4:Bring your accounts back

    Enable the networks you used and check the expected history and balances.

Enter recovery words on Safe 3, never on the computer’s keyboard or clipboard.

An empty wallet isn’t proof the funds are gone

It can mean a different passphrase, or a network you haven’t enabled yet.

Go further

If something goes wrong · 15 of 16

Forgot your PIN

Getting back in means resetting Safe 3, which erases it, then restoring from your backup.

Don’t reset until you have your backup and any passphrase the wallet needs.

You’ll need

  • Your wallet backup, or enough shares to meet its threshold
  • Any passphrase the wallet needs, exactly as written

Use the lost-PIN section of Trezor’s reset instructions: it starts in bootloader mode. The ordinary wipe in Suite asks for the PIN you’ve forgotten.

Still able to unlock it?

To verify your backup on a device that still unlocks, use Check backup instead. It doesn’t erase anything.

Check your backup

Then restore from your backupRestore onto a new or wiped Safe 3 with your recorded backup, plus any passphrase you used.

Go further

If something goes wrong · 16 of 16

Backup missing or invalid

If Safe 3 can still approve payments, move the funds to a new wallet with a checked backup.

Don’t wipe or update the device while it’s your only way to approve those payments.

In this order

  1. Leave Safe 3 as it is: no wipe, no update.
  2. Set up a separate wallet with its own new backup, and verify that backup using the wallet’s procedure.
  3. Verify the new wallet’s receiving address using its procedure, and match the asset and network.
  4. Paste the verified address into Suite’s Send form and compare it with the full address on Safe 3. Send a small test and confirm arrival in the new wallet.
  5. Move the remainder while Safe 3 can still approve payments.

Why a reset doesn’t help

Trezor’s single-device reset needs a valid original backup, so it can’t fix a missing one.

Go further

Sources · 30 checked pages

This page is based on manufacturer documentation.

Documentation checked: · · · · · · ·

How we compare

Trezor Safe 3Multi-coin edition

Check price at Trezor

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