My iPhone virus watering from apple or scam

No, Apple does not send virus warnings because there are no known viruses on a non-jailbroken phone. It's just a scam designed to get you to purchase unnecessary software.

Read about it here.

Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

No, all such messages are scams presented by criminals. Close the offending page and avoid sites that are involved in such bogus advertising tactics.

Phony "tech support" / "ransomware" popup… - Apple Community