A portable device and an electronic payment method of a portable device are provided. For example, a portable device and an electronic payment method of a portable device capable of performing a payment by an electronic card having a card payment limit for each category of products (or services) are provided. Various example embodiments provide a portable device and an electronic payment method of a portable device capable of providing a user with a payment processing notification and a payment holding notification by an electronic card having a card payment limit for each category of one or more purchase categories before the payment is completed.