Sun Device Group

sundevice is a fast-growing b2b marketplace of used smartphones and tablets. founded in 2017, our aim is to provide all smartphone retailers access to high-quality devices at a competitive price. through our relationships with major actors in the used smartphone industry, we can guarantee consistent quality and inventory. through our relationships with major actors in the used smartphone industry, we are able to offer a wide range of devices at a competitive price. our prices are updated every 30 minutes and we receive new inventory, that is tested and graded on a daily basis. process: all of the devices we supply go through a rigorous testing and grading system. all phones must pass 28 key feature tests in order to be graded cosmetically. once graded, based on a trace of wear and scratches, the units are stored and ready to be shipped. warranty: we are confident in the quality of our devices, allowing us to offer a 6-month warranty on all faulty devices due to a defective motherboa