As of 2015, customers of AT&T can upgrade their phone any time they want with the Next Plan. Upgrade options also include obtaining a new phone every 24 months with a contract, notes AT&T.
With the AT&T Next Plan, consumers have the option to finance their devices for a set period. Some of the time options include 18-month or 24-month financing. After that time, consumers can exchange their device for another device. With the Next Plan, clients have the option to pay off the device at any time and upgrade whenever they want. As of 2015, the cell provider offers the two-year contract to consumers on many devices. However, consumers do not have the option of a two-year contract with an iPhone.