As of March 2015, Samsung certified refurbished products come with a 90-day warranty from the date of purchase, according to the Samsung website. The warranty is valid on all refurbished phones purchased on Samsung's outlet store.
Samsung's refurbished products are thoroughly tested before being sold. The units are fitted with new replacement parts, and each undergoes a thorough cleaning and inspection process. The testing of these products is the same as for a new phone, and customers can expect a refurbished phone to work as well as a new phone.
If a refurbished phone is defective on arrival, users have 30 days to return the product to Samsung. Refurbished items are sold on a first-come, first-served basis and quantities are limited.