How to I rename a device?

To change the name of your iPhone, iPad, or iPod touch, follow these steps: On your iOS device, go to:

Settings > General > About

Tap the first line, which shows the name of your device. Rename your device, then tap Done.

From:

Change the name of your iPhone --> https://support.apple.com/guide/iphone/change-the-name-of-your-iphone-iphf256af64f/ios

Change the name of your iPad --> https://support.apple.com/guide/ipad/change-the-name-of-your-ipad-ipad120528d3/ipados