There is no industry standard definition of a smartphone. However, in general a smartphone is a mobile phone that offers advanced features, often similar to the capabilities of a personal computer.
Basic features of a smartphone include e-mail, Internet access, document editing and more. A smartphone will run an Operating System, which allows it to run different programs or applications (apps).
To become more familiar with the features of your phone you should consult the owners manual or discuss the features with the representative who helped you purchase your phone.