Hai Friends… You can’t effectively use an iPhone without an Apple ID.
If you want to Download apps in the App Store,
sign up for Apple Music or an iTunes account,
or use iCloud, iMessage, or FaceTime,
you’ll need your own Apple ID first.
Once you’ve created your Apple ID, you can use it for all of the purchases, services, and accounts I mentioned before; it’s really nice not to have multiple login names and passwords to remember. Signing up for an Apple ID is free and easy to do; let’s get started learning how to sign up for a new Apple ID on your iPhone.
Apple ID user name is a mail address. you can use your gmail , yahoo or create your own apple mail icloud
password must be 8 character minimum , one capital letter at least one number
also need answer for 3 security questions and your date of birth