A mobile wallet is a digital application that allows users to store and manage their payment information on their smartphones. It enables users to make purchases, send money, and receive funds without needing physical cash or cards. Popular mobile wallets include Apple Pay, Google Pay, and Samsung Pay, which use secure technology to protect user data. Mobile wallets often support various payment methods, including credit and debit cards, bank accounts, and even cryptocurrencies. They can also store loyalty cards, coupons, and tickets, making it easier for users to access all their essential items in one place.