While ether (ETH) is the native cryptocurrency of the ethereum blockchain, there are many applications or cryptocurrencies that are built on top the ethereum network. Think for example a non-fungible asset. By using a smart contract to convert your ETH to wrapped ether (WETH), you can use your ETH to transact on those platforms. Converting your ETH to a wrapped ETH is simple and an option that many digital asset exchanges such as OpenSea allow with a simple touch of a button.