You really can’t use up all the space your phone comprises. For instance, if your iPhone’s memory is 16 GB then you can’t really use the whole of 16 GB. This limits your phone’s storage, but if you wish to increase your phone’s memory then your best option is to clear off the junk you have on your phone which is taking up too much space. Here is 10 Easy Ways to Free up A Lot of Space on Your iPhone:
10. Check your usage
The first thing you need to do is find out what’s taking up the most space on your phone because you may have some unexpected storage hogs. So to do is you need to Open the Settings app then go to General > Usage > Manage Storage. You can see how much space you’ve used and how much you have available at the top, and below you can see there is a list of your apps ranked by how much space they’re using. This might take a minute to load.