How to transfer Contacts from iPhone to iPhone using an iTunes Backup?

Mobile Devices | iPhone

Open iTunes on your computer.

Connect your old iPhone to your computer via USB.

Your iPhone should appear in the top row of buttons in the iTunes window.

Select your iPhone in iTunes.

This will open the Summary page.

Select "This computer" and click "Back Up Now".
(This will create a backup of your old iPhone, that will be saved on your computer).

Start the setup process on your new iPhone.
(Make sure to log in with the same Apple ID you used on your old iPhone).

Restore your backup by selecting "Backup from iTunes".

Once the backup restore is completed, the contacts from your old iPhone should now be available on your new iPhone.
Mobile devices, iPhone, iCloud, transfer Contacts