Apple Inc. (NASDAQ:AAPL) will finally unveil the iPhone 6 later on this afternoon, and a few phone carriers are ahead of the game. Sprint Corporation (NYSE:S) and T-Mobile US Inc (NYSE:TMUS)just launched trade-in programs that will save customers serious money.

Sprint Corporation

The Sprint Buyback program offers up to $300 on eligible phones. This offer is also good on phones from other carriers. The trade-in value can be used as a credit or it can be used towards a new phone. If a user finds a better deal elsewhere, Sprint promises to meet or beat the deal.

T-Mobile’s deal may top Sprint’s deal

T-Mobile’s offer is similar to Sprint’s but it offers a little more. The carrier will watch trade-in market prices on a daily basis just to ensure it is offering the best value. If a user finds a better deal from a competitor, T-Mobile will not only match the price but they will offer an additional $50 credit. Sprint’s offer starts today but T-Mobile offer starts September 17th.

There are notable limits and exclusions to the offers. The T-Mobile offer will only allow one trade-in per active line with a total limit of trade-ins per 10 active lines. Sprint allows users to trade in up to three phones per active line and up to five buyback trade-ins a year.

Sprint and T-Mobile compete for trade-ins

Both new offers sound enticing for anyone who wants to sign up with T-Mobile or Sprint. The ultimate decision will have to come down to what carrier offers the better service in that area. Phone shoppers may also want to compare the trade-in offers with the other two major carriers AT&T and Verizon.

The new trade-in programs come just in time for Apple’s iPhone 6 as well as Android’s upcoming devices Samsung Galaxy Note Edge, Sony Xperia Z3, and Moto X. These trade-in offers are ideal for those who want a new phone and save money  at the same time.