What is the fastest app to transfer data between two apple phones

what is the best way to transfer data between two iPhones?

I want to do it blink fast.

There really is no "Speedy Gonzalez" Way to really transfer everything over. It all depends on how much stuff you had on the old iPhone. After that, Use Apple's Quickstart, link is down below.


https://support.apple.com/en-us/HT201269