Hardware Wallet Basics

Hardware wallets store your cryptocurrency private keys on a physical device that never exposes them to your computer or the internet. Transactions are signed on the device itself, providing air-gap security.

All major hardware wallets use the same recovery mechanism: a BIP39 seed phrase (12-24 words). Your choice of hardware wallet is about the security and usability of the signing process, not about lock-in.

Comparison

Ledger Nano X / S Plus: Most popular, supports 5,500+ tokens, Bluetooth (Nano X), Secure Element chip, closed-source firmware (controversial). $79-$149.

Trezor Model T / Safe 3: Pioneer hardware wallet, open-source firmware, touchscreen, wide token support. No Secure Element (controversial). $69-$179.

Coldcard Mk4: Bitcoin-only, air-gapped (USB or microSD), fully open-source, most security features. Not beginner-friendly. $150.

BitBox02: Swiss-made, minimalist, open-source, Bitcoin-only and Multi editions. Good balance. $130.

For beginners: Trezor (easiest) or Ledger (most tokens). For Bitcoin maximalists: Coldcard. For balance: BitBox02.

Backup and Inheritance

Regardless of which hardware wallet you choose, your seed phrase backup strategy is identical:

  1. Write seed phrase on metal plates
  2. Store in fireproof safe
  3. Store encrypted copy in ZeroLatch vault for inheritance
  4. Document wallet PIN and device info alongside the seed phrase

Your hardware wallet choice doesn't affect your dead man's switch setup. The seed phrase works across all compatible wallets.