I have 64 GB and my storage space is completely full I have already deleted a lot of data, what should I do? Can I buy a memory card? And how can I then put my data on it? And what memory cards? Do you have recommendations?
Which memory is full? Internal or RAM?
If your device has a slot for memory cards, you can logically insert and use a memory card. Which card model depends on the specific purpose. For camera use with 4K is just another thing to consider, such as when used as a data grave.
Where the data is then saved, you can (in Huawei) in the system menu or - depending on the app - in the settings of the app.