You can set up voicemail on your iPhone through the Phone app, which will let you record a custom greeting that you can edit at any time.

You can set up Face ID on an iPhone in just a few seconds in the "Face ID & Passcode" section of your phone's Settings app.

Here's how to turn off Find My before you get rid of your old iPhone.  How to turn off Find My 1. Tap Settings on your iPhone. 2. Tap your name across the top of the menu. 3. Tap Find My. 4. Tap Find ...