Wallets
NGRAVE ZERO review: setup, GRAPHENE backup and security
The NGRAVE ZERO is a fully air-gapped hardware wallet with an EAL7 certified OS and a stainless steel GRAPHENE backup. Setup is guided, and the combo pack costs $498.
Tag
Air-gapped wallet
Wallets
Keystone 3 Pro review: an air-gapped Bitcoin wallet setup
The Keystone 3 Pro keeps Bitcoin keys offline and signs transactions by QR code. Setup covers firmware, a seed phrase and passphrase, and signing in Sparrow Wallet.