Trezor Safe 3
- Useful for
- A compact device with physical buttons and on-device transaction confirmation.
- Check first
- Confirm supported assets and your phone or computer. Current Trezor documentation lists limits on setup and transactions with iOS.
Your wallet. Your recovery plan.
Protect your wallet
A device can be replaced. A lost recovery phrase may not be. Start with a backup plan, then choose the tools that fit your wallet.
Keep the backup offline
Five checks before you buy anything
Use this checklist to review your plan. It asks for no recovery words, passwords or wallet balances.
Your backup checklist0 / 5
Match the format before choosing the metal
A steel backup stores information; it does not encrypt it. Anyone who can read a complete recovery phrase may be able to use it.
BIP39 · 12 or 24 words
Check the word count and alphabet. Tile products that store the first four letters are usually designed around the English word list; verify support for your language.
SLIP39 · 20-word backups
A 20-word SLIP39 share is not a 12/24-word BIP39 phrase. Keep Metal 20-word is designed for this format; it is not the right model for a SeedAddress phrase.
Compare the tools
Tools to compare
Seven options, grouped by their job. Compare the manufacturer’s current compatibility and instructions with your own setup.
Choose your Amazon country. When a product listing has not been verified there, the button opens the manufacturer-listed store. Confirm the model and seller before buying. See stores by country
As an Amazon Associate I earn from qualifying purchases. Recommendations are based on compatibility and documented features.
Hardware wallets
A signing device and its recovery backup are separate parts of your setup. For a new wallet, follow the device’s documented generation and backup process.
Trezor Safe 5
- Useful for
- A touchscreen interface for reviewing and confirming transactions on the device.
- Check first
- Check the backup format selected during setup and current iOS compatibility before buying.
Ledger Nano S Plus
- Useful for
- A USB-C device for a desktop or Android setup.
- Check first
- Nano S Plus does not support iOS. Check asset support and the apps needed for your wallet.
Ledger Flex
- Useful for
- A touchscreen signer with wireless connectivity for compatible mobile setups.
- Check first
- Confirm device compatibility and review transaction details on its screen before approving.
Physical backups
Choose storage that matches your existing backup. Buying a new device does not strengthen a phrase that was generated from weak inputs.
Cryptosteel Cassette Solo
- Useful for
- A reusable steel tile cassette for an English BIP39 backup of up to 24 words.
- Check first
- It abbreviates words to four letters. Confirm the alphabet and capacity; assemble and verify the tiles carefully.
Billfodl
- Useful for
- A steel tile cassette for storing a BIP39 recovery backup offline.
- Check first
- Check word-list language, tile capacity and the manufacturer’s assembly instructions. Keep the completed cassette private.
Trezor Keep Metal 20-word
- Useful for
- A permanent punched backup for Trezor’s 20-word SLIP39 format.
- Check first
- This model does not fit SeedAddress’s 12/24-word BIP39 output. Verify every word before punching; the marks are permanent.
Selection based on manufacturer documentation, reviewed on 9 October 2026. These are feature comparisons, not hands-on reviews or a security ranking. Prices, stock, shipping and specifications can change.
Amazon
Choose a manufacturer-listed Amazon store
These links open the brand’s store or seller page, rather than an unverified individual listing. Check the seller again on the product page and at checkout.
As an Amazon Associate I earn from qualifying purchases. Recommendations are based on compatibility and documented features.
Availability and delivery depend on the store. If the seller differs from the manufacturer’s authorised list, check that list before purchasing.
Before you trust a backup
Does buying a hardware wallet make a SeedAddress phrase stronger?
No. The current SeedAddress method is deterministic and adds no random entropy. Keep it for its documented use or for reproducing a phrase originally created here. For a new wallet, prefer the wallet’s documented random generation process.
Is a metal backup encrypted?
No. Steel changes the storage medium. It does not hide the recovery words from someone who can access and read them. Choose both the medium and the storage location carefully.
Is the SeedAddress password a BIP39 wallet passphrase?
No. SeedAddress’s password is an input to its own generator. An optional BIP39 wallet passphrase is a separate part of wallet derivation. If your wallet uses one, its recovery plan must include it.