Sony Xperia 5
Creating contact
You can save your contacts in your phone's address book. You can save additional information to a contact such as email address and personal ring tone.
Slide your finger upwards starting from the bottom of the screen.
Press Contacts.
Press the new contact icon.
Press the address book drop down list.
Press the required setting.
Press First name and key in the first name.
Press Surname and key in the last name.
Press Phone and key in the phone number.
Press Save.
Press the Home key to return to the home screen.