A free cell phone upgrade is available from Sprint when 12 consecutive $10 payments have been made through the early upgrade option. The early upgrade option is available on either the $60 unlimited plan or the Sprint Family Share Pack, as of 2015.
Specific terms and conditions that must be met with the Sprint early upgrade option. For example, the old phone must be turned in at the time of the upgrade, and the early upgrade option is only available to phones purchased with the Sprint Easy Pay plan. Any phone purchased on a 2-year service agreement is not eligible for an early upgrade.