For those looking to buy used iPhones for cheap in 2026, the best options range from stores for reliability to third-party marketplaces for the deepest discounts. Certified sellers like Apple and Amazon Renewed offer warranties and quality guarantees, while platforms like Back Market and plug often provide the lowest prices. Top 2026 Recommended Retailers Typical Savings Apple Certified Refurbished 12-22% off "Like-new" quality and new batteries Back Market 40-60% off Deepest discounts and large selection Amazon Renewed 25-45% off 90 days - 1 year Prime members and "Renewed Premium" tier Swappa Safe peer-to-peer buying with IMEI checks plug 30-55% off Guaranteed 90%+ battery health Best Buy 20-35% off 15-60 days In-store pickup and inspection Back Market