Sprint One Up logo leak

New documents show that Sprint is preparing to launch its own early update plan called Sprint One Up. This will mark the last of the four major U.S. carriers to launch such a plan, but it’s better late than never.

According to documents obtained by CNET, the Sprint One Up plan will launch on Sept. 20, and will bring a couple of twists to the model we’ve been seeing over the past few months since T-Mobile launched its JUMP plan. Customers will be able to pick up a phone for $0 down and then pay for the phone over 24 months with the extra balance being paid in the final month. Customers who go for this plan will be able to upgrade to a new handset at the end of 12 months so long as they agree to another 24 month contract.

The big savings on the Sprint plan comes in the form of also picking the Unlimited or My-Way plans. If you combine One Up with the unlimited plans you will receive a $15 discount on your plan meaning that an unlimited plan could cost the customer as little as $65 a month. According to the leaked plan chart from Sprint, this will end up making the One Up plan the cheapest option on the market compared to T-Mobile JUMP, AT&T Next and Verizon Edge.

Sprint One Up Chart leak

Customers who are at least one year into their agreement with Sprint can opt to change over to the new plan and trade in their phones now if they so choose. In other words, iPhone 5 customers who got the phone on launch day can pick up an iPhone 5s or 5c. We’re sure the rumored launch date for this plan being Sept. 20, the same day the new iPhone models will launch, is not just a coincidence.