To check how much system storage takes up on your iPhone, run with this.
On your iPhone, tapSettings.
Wait for your iPhone to finish calculating how space is used.

Depending on the capacity of your iPhone, this can take some time.
The gray bar represents how much space is taken up by system storage.
How Can I Reduce iPhone System Storage?
Here’s an overview of how to reduce iPhone system storage.
What Is iPhone System Storage?
iPhone system storage includes a lot of different files that you might not think about.
), so it can increase pretty quickly.
it’s possible for you to quickly reduce it with a restart or installing an update, however.
To do this, go toSettings>Messages>Keep Messagesand select30 Days.