My iPhone's backup file is too large
Hi. I have an iPhone 7 with 256GB of storage; I've just bought a new iPhone X with 64GB of storage. I'm trying to transfer my information and data to my new iPhone. When I plug my iPhone 7 into iTunes, it shows 220 GB Free. However, when I back it up, the backup file is 68GB and it doesn't fit into my new iPhone. Is there a reason the backup file is twice the size of what my old iPhone has? How can I reduce the backup file size? I haven't been able to use my new iPhone since I need my information to be transferred.
Appreciate the help!
iPhone 7