Ledger Nano S is a hardware wallet that stores cryptocurrency in a secure offline environment. It is a small, lightweight, and low-cost device that can be carried in your pocket or on your keychain. It has been in the market for a while and it is one of the most popular hardware wallets available.
The Ledger Nano S is not obsolete because it still provides the same level of security as it did when it was first released. It also has a lot of features that other hardware wallets don’t have such as the ability to store many cryptocurrencies and altcoins, and the Ledger Live mobile app which allows you to manage your coins from anywhere.