Keystone
QR Code (air-gapped), USB-C (charging only)
LCD 4" colour touchscreen
5,500+ coins
2023
$149
The Keystone 3 Pro is an air-gapped hardware wallet that communicates exclusively through QR codes. It features a large 4-inch touchscreen, triple secure element chips (EAL5+), a PCI anti-tamper self-destruct mechanism, and fingerprint authentication. The device supports multi-chain and multi-signature setups, is compatible with MetaMask, and runs open-source firmware. It represents one of the most feature-rich air-gapped wallets available.