The Smart Switch comes pre-installed on most the Samsung’s smartphones. This application has been built to move files across different devices. This application has been developed, and distributed by Samsung officially. To back up your phones, we use an application Smart Switch. The solution is simple, you can back up almost all of your files to your Windows PC, and this tutorial will help you correctly. However, soon or later, you’ll realize you’re running short on storage space, and then you’ll look for alternatives. Both the smartphones have been powered with plenty of internal memory, and capabilities to expand it more through an SD card. And most importantly, we are going to create an offline backup. This is a detailed guide on how to back up Samsung Galaxy S9 and S9 Plus on Windows PC, or Mac using the Smart switch application.