: Highly recommended for its rigorous verification process. Swappa reviews every listing to ensure the IMEI is clean (not stolen) and requires sellers to provide photos of the device powered on.

Purchasing an iPhone 6 Plus Go to product viewer dialog for this item.

: A dedicated marketplace for refurbished tech that offers a minimum one-year warranty on all devices. Reviewers from Back Market frequently praise the "like new" condition of their older iPhone models.

: Offers refurbished models with a 90-day warranty and the benefit of Amazon's extensive customer service for easy returns.

: One of the original reliable sources for used iPhones, Gazelle performs a 30-point inspection on all devices and provides a 30-day return period. Major Retailers with Used Inventory

Standard big-box retailers also maintain used and restored inventories through their online outlets. : Often carries "Restored" iPhone 6 Plus

units through its website. You can find pre-owned Apple iPhone 6 Plus (16GB) models for as low as .