-Ledger Nano S is the best-selling cryptocurrency hardware wallet with over 1.4 million units sold. It is the most affordable option on the market with strong encryption and security mechanisms. Ledger devices are known for supporting a wide range of cryptocurrencies - which is their hallmark in the wallet market. Ledger Nano S is no exception, it supports over a thousand different types of crypto, including such popular coins. The Ledger Nano S is a great hardware wallet for storing multiple types of coins (like BTC and ETH). Plus, it's the perfect storage solution for your entire altcoin portfolio.