Android’s storage management has steadily improved over the last few years, using a storage manager added in Marshmallow and adoptable SD cards as well. The next little, iterative improvement arrives within Android 7. 1 Nougat, with System now separated out into its own entry in the storage management display.
This means that, when viewing the storage that has been used, it will now display System storage and how much has been taken up by the System – on my 6P running 7. 1, Program takes up 4. 57GB.
Android 7. one feature spotlight: Storage right now separates System into a good entry all of its own had been written by the awesome group at Android Police.