Hardware wallet
A physical offline device that stores your private keys.
A small device (Ledger Nano, Trezor, GridPlus) that holds your private keys offline, they never leave the device. You physically confirm each transaction by pressing a button. Even if your computer has malware, the attacker can't extract the keys. Standard for amounts above a few thousand dollars. Price: $80-200. Critical: buy DIRECTLY from the manufacturer, used or marketplace devices can be tampered with.
In plain words
A small device that stores your private keys offline. Even if your PC is infected, the attacker can't extract them. You confirm every tx with a physical button on the device. Most popular: Ledger Nano and Trezor. Standard for amounts above a few thousand dollars. BUY ONLY DIRECTLY FROM THE MANUFACTURER, used ones may be tampered with.
Example
Ledger Nano S Plus: €79, supports BTC, ETH, SOL and 5000+ other tokens.
Also known as: ledger, trezor, cold wallet