$SUI is the native currency of the Sui Network, a modern blockchain focused on speed, scalability, and user experience. It uses the Move language and allows for very cheap and fast transactions, making it suitable for Web3 applications, games, and NFTs. $SUI can be used to pay fees, stake, and participate in network governance. The currency has attracted investor interest after being listed on major platforms. However, it is a new currency and subject to high volatility, so caution is advised, and following news before investing is recommended.