Keycard Shell is a modular, fully open-source, air-gapped hardware wallet that signs via QR codes (ERC-4527). It has a built-in keypad, display, and camera, optional USB (can be turned off), and uses removable Keycards for secure key storage and backups. Keycard is a BIP-32 HD wallet running on JavaCard with EAL6+ secure element. Supports BIP-39 and SLIP-39 seed phrases.

Incubated by imToken, imKey is a reliable digital wallet that supports access to 50+ major networks (including Bitcoin, Ethereum, and Tron). Built with an EAL6+ certified secure chip, imKey ensures private keys are generated, stored, and used entirely within the device for maximum protection. Seamlessly integrated with imToken on mobile and compatible with the Rabby browser extension on PC, imKey enables users to manage assets, interact with apps, and perform transactions with enhanced security and flexibility.

GridPlus Wallet is a secure hardware wallet that combines secure key storage with convenient authentication methods.

OneKey Pro is a hardware wallet with excellent haptic feedback, air gap mode, and EAL6+ secure element.

The Cypherock has a secure element (EAL6+ rated) and uses a unique card-tapping system for transaction authorization.

BitBox02 is a hardware wallet with fully open-source firmware and a unique secure chip architecture that doesn't require trusting closed-source code.

Ledger Wallet is a self-custodial wallet built by Ledger. It integrates with Ledger hardware wallets to provide secure cryptocurrency management.

Keystone Wallet is a self-custodial hardware wallet that provides secure private key storage. It uses QR codes for air-gapped transaction signing.

NGRAVE Zero is a hardware wallet with EAL7+ secure element, biometric authentication, and QR code scanning capabilities. However, it fails to properly display transaction and message data for verification.

Trezor Wallet is a self-custodial hardware wallet built by SatoshiLabs. It provides secure storage for cryptocurrencies with an easy-to-use interface.

Firefly Wallet is a hardware wallet that uses biometrics for user authentication and secure private key management.