Apple's refurbished products are backed by a one-year warranty.
Brad's Deals Editor David,
Get an Apple-Certified Refurbished 256GB iPhone 8 (in silver only) for $319 with free shipping at Apple.com. This is the lowest price on a refurbished model, and Apple's refurbishing process is rigorous. It includes the same one-year warranty as a brand-new model and is eligible for an Apple Care extended warranty. Sales tax is charged in most states.