Why Use an SD Card as Internal Android Storage? The option to use an SD card as internal storage is primarily useful for Android devices that don’t have a lot of built-in storage space.

If your Android phone is running out of storage space, many phones will allow you to insert an SD card, which you can set as the phone's primary storage.

For extra storage space, you can set your Nokia phone to save images and other media to an internal memory card.

Alternatively, you can change the default photo storage through the Gallery app’s storage settings. And that’s how to change the default camera storage on the Redmi Note 8 Pro smartphone.