What You Need to Save Data to an SD Card on Android
Starting with Android 4.0 (released in 2011), you can save your Android smartphone or tablet data to an SD card. High-capacity SD cards ranging up to 2 TB aren’t expensive. Double-check the maximum capacity of the MicroSD card that your device supports before you buy one. Aside from clearing storage space, the other benefit of saving files (mainly music, videos, and photos) to an SD card is that you can swap the files to another smartphone or tablet.
How to Move Files From an Android Device to an SD Card
The accumulation of apps, files, photos, and updates on smartphones and tablets consumes system resources, which results in slower operation. One way to free up space and improve the performance of your Android device is to transfer files to an SD card. If you see a notification after you insert the microSD card, tap it to start transferring files. Otherwise:
How to Move Apps to an SD Card
Android OS allows you to move apps to and from the SD card:
How to Set Default Camera Storage to the SD Card
You can change your camera’s default storage location so that all photos and videos you take are saved to the DCIM folder on the SD card:
How to Transfer Files to Long-Term Storage
Eventually, the SD card will fill up and run out of space. Move files from the SD card to a laptop or desktop using a memory card reader to remedy that. Then transfer the files to a high-capacity external hard drive or upload them to an online storage site like Box, Dropbox, or Google Drive.