Back Market is an online marketplace that sells refurbished electronics like smartphones, laptops, and tablets through certified third-party sellers, focusing on lower prices and sustainability. Founded in Paris in 2014, Back Market connects buyers with vetted refurbishers who repair, test, and resell used devices at discounted prices, often with a 30-day return policy and a one-year warranty for added security. The platform operates in more than 17 countries and has sold tens of millions of devices, aiming to extend product lifecycles and reduce electronic waste by promoting reuse instead of buying new technology.