The Ledger Nano S is a hardware wallet that can be used to store bitcoin, ether and a range of other cryptocurrencies. One of the most popular cold storage wallets on the market, the Nano S connects to a computer via USB and features an OLED display that makes it easy to check and confirm transactions by pushing the buttons on the side of the device. Private keys are retained by the user at all times and the Nano S can also be secured with a PIN code.
The wallet ships with a number of apps by default, enabling users to store Bitcoin, Litecoin, Ether and Ethereum Classic. Apps can be installed for other cryptocurrencies however and a single device can be used to store multiple wallets. Although designed as a cold storage wallet, the Ledger Nano S can also be used daily to send and receive payments. Security is beefed up with the aid of Universal Second Factor authentication.