IPhone Backup Transfer Without Reset?

I got a new iPhone. I put set it up with the wrong backup. I want to get the backup of a different device onto it. Is that possible without reseting my iPhone?

No. In an iOS device you can't access or restore different backups onto your device without restoring your device to factory settings first then going back through the setup wizard to choose the correct backup.

Since you just got a new iPhone, remember that you're eligible for phone support with AppleCare for 90 days at 1-800-MYAPPLE.

Hope I could help.