How to buy 4 iPhones as gifts

Easiest is to buy them one at a time on Apple's site and have each delivered to the recipient rather than yourself. Or, you can go to an Apple Store and do the same thing.

Important notes!

1. Make sure to buy unlocked phones. Then the person getting the phone can connect to any carrier they want.
2. Do not buy phones for people outside of your region. Example: A phone purchased in the U.S. may not work if shipped to another country. Such as, all U.S. phones are eSIM only. If sent to a county that requires physical SIM cards, they won't be able to use it. That, and any warranty work would require shipping the phone back to the U.S. (if they were purchased here).