Apple is rumored to kick off a massive iPhone 5s and iPhone 5c sale campaign this week in its retail stores, enticing existing iPhone users eligible for an on-contract iPhone upgrade with new iPhone trade-in deals. However, Apple isn’t the only company ready to offer better prices on its newest iPhone models, as Target already has a few hot offers of its own for iPhone buyers. From May 4 through May 10, Target will offer iPhone fans who want to trade-in their older smartphones up to $300 toward the purchase of an off-contract iPhone 5s or iPhone 5c. Shopping with a Target REDcard will add further discounts, with Target offering an additional 5% of the price of the chosen iPhone for such purchases.