syncing the contacts in whatsapp to iphone 16 contacts
why all the contacts in Whatsapp are not appearing in iphone 16 contacts
iPhone 14, iOS 26
When you add a contact in Whatsapp using a phone number that is not in your phone contacts, they are not automatically added to phone contacts, but there again it would be unusual to Whatsapp someone you didn't already know.
Best keep them separate, despite Whatsapp trying to merge them occasionally