Currently using my iPhone 8 Plus which is on its last legs. Currently on a very good sim only deal.

Finally getting a new phone.

The 15 pro on contract (in the U.K. at least) is like £80 a month. So I looked online and can get an iPhone 13 Pro for £600 (used but excellent condition 256gb)

Should I get the 13 pro? Or do I just get the 15 pro on contract and spend the extra £££. Ideally I don’t want to spend that much a month if I’m not really getting anything extra