Trezor Safe 5 or Ledger Flex?

Flex signs with Ledger Wallet on iPhone over Bluetooth. Safe 5 uses Trezor Suite over USB with a computer or compatible Android phone; displaying a balance on iPhone does not give it iPhone signing.

On Android, both can fit: Safe 5 uses a data cable, while Flex offers USB or Bluetooth. Check the actual asset and network in the app you will use rather than assuming both apps offer the same accounts.

Compare wallets that sign with iPhone 

Check the asset, network and app 

Safe 5 has a 1.54-inch colour touchscreen and draws power through USB, without a battery to charge. Flex has a 2.84-inch E Ink touchscreen and a rechargeable battery, so Bluetooth use can be cable-free after charging.

For repeated PIN entry and transaction checks, Flex gives you more screen area; Safe 5 is the smaller device. Neither choice removes scrolling or checking the complete recipient and amount. A readable request can still ask you to approve something you did not intend.

What to check before approving a payment 

The standard new Safe 5 setup uses a 20-word SLIP39 backup; a new Ledger wallet creates a 24-word BIP39 phrase. Flex’s documented manual restoration accepts BIP39, not that 20-word SLIP39 backup. If your existing Trezor wallet instead uses BIP39, the compatibility question is different: check its phrase length, accounts and any exact optional passphrase.

You can also create a new wallet on the replacement and transfer funds to its new addresses. Keep the original wallet usable until access and transfers are checked. Safe 5 has a separate Bitcoin-only edition; the comparison here uses its Universal edition alongside the multi-asset Flex.

Check compatible recovery formats 

Restoring a wallet or creating a new one 

Compare Ledger and Trezor beyond these two touchscreen models