Unable to update ios due to low storage
Have an iPhone 11 with 64GB of storage, but have insufficient storage available to update to iOS 18.1.1
Most of the storage is taken up by Messages. I have not been synching messages to icloud. If I decide to upgrade to an iPhone 14 with 128GB storage, will I need to update the iOS before transferring my data? Is there a way of synching messages to iCloud and then deleting them to free up the storage needed to update iOS?
iPhone 11, iOS 18