The S4D team brings many years of experience within the used and refurbished mobile sector and understands the importance of maintaining the highest standards when grading and testing stock. Our expertise ensures that every device is carefully assessed to guarantee quality, reliability, and consistency for our customers.
All used and refurbished mobile devices undergo a comprehensive testing process, including up to 47 functional checks. This rigorous inspection covers key components such as battery performance, screen condition, connectivity, camera functionality, and overall device performance. Our detailed quality control procedures ensure that every handset meets strict standards before it is approved for resale, providing our partners and customers with confidence in the products they receive.