Ledger Nano S, also called Ledger Wallet, is a hardware cryptocurrency wallet that allows you to safely store your cryptocurrency. But this is not the main thing that this wallet allows you.
Hardware wallets, such as the Nano Ledger S, differ from software wallets in greater security. They store your private keys on a separate physical medium instead of storing them at the software level and endangering them! It also means that your coins are always offline, which makes it virtually impossible to remotely access them because it is an offline cryptocurrency wallet.
The main advantage of buying a Ledger wallet is that it is the safest way to store your cryptocurrency! In fact, owning a hardware wallet is like storing your cryptocurrencies in a real safe!
Ledger Nano S stores your private keys on a real device. In addition, because the wallet is always offline (except for the process of sending funds - more on this later), no one will be able to access them via the Internet.