i need to reset my iphone
i have a iphone 11 that i use now but my old iphone 8 needs to be reset so i can give it away
iPhone 11, iOS 16
Question marked as
See -> What to do before you sell, give away, or trade in your iPhone, iPad, or iPod touch -> What to do before you sell, give away, or trade in your iPhone or iPad - Apple Support
Then you have to remove the iPhone from your account, see this Apple article:
Check your Apple ID device list to see where you're signed in
Check your Apple ID device list to find where you're signed in - Apple Support