Unlike older versions of Android, it doesn’t matter whether the developer has disabled the “move to SD card” permission or not. In fact, since it’s considered internal storage, any type of app can be installed to the SD card–including apps that provide widgets and background processes. It’ll be treated as part of your internal storage, and Android can install apps to it and save app data to it.
In this case, your Android device “adopts” the SD card as part of its internal pool. Starting with Android 6.0 Marshmallow, though, some phones can use SD cards as internal storage as well. Your Android device will continue working properly if you remove it.
You can remove the SD card from the device and plug it into your computer or another device and transfer files, like videos, music, and photos, back and forth. In the past, Android has traditionally used all SD cards as portable storage. There are two ways to use an SD card with your device. RELATED: How to Buy an SD Card: Speed Classes, Sizes, and Capacities Explained
