This refurbed Samsung Galaxy S9+ DuoS is as well designed a smartphone as they come. This is mainly due to its huge AMOLED display that features a resolution of 2960x1440 pixels and makes it perfect for multimedia applications. What’s more, its 12-megapixel dual-camera enables you to take photos of breathtaking quality. Add to that the modern USB-C port and plenty of performance (thanks to its Exynos 9 processor and 6GB RAM), and you are left with a smartphone that masters all situations with supreme confidence.