The primary function of a digital wallet is to securely store and manage digital currencies or payment information. Users can link their bank accounts, credit, or debit cards to a digital wallet, enabling them to make purchases online and in physical stores with convenience. Digital wallets enhance transaction speed, reduce the need for cash, and often come with added security features, such as encryption and biometric authentication. They also often support loyalty cards and coupons, simplifying the payment process for consumers.