Question about backup.
So, to begin with, I haven't backed up my phone for quite some time ever since I changed to a different iPhones (Had a 5, currently have a 6s). However, my problem is that I don't have enough iCloud storage space and I dont know what to do besides buying more storage (don't really want to). Can I delete the old backup I have and then backup the phone I currently have, or will it delete everything, because the last backup was before I changed phones I think.. Don't know if it'll make any difference, but here are some pictures.
iPhone 5, iOS 8