Delete old iphone
I have transferred all data from an i phone 6s to an i phone 11 how can I delete all info and data from the i phone 6s so that I don’t delete from i phone 11 I want to give the i phone 6s away.
iPhone 6s
Go through the steps in here. You can skip the section about transferring the data since you already did that.
What to do before you sell, give away, or trade in your iPhone, iPad, or iPod touch - Apple Support
Erasing the old phone will not affect anything on the new phone.