What’s the difference between A/B testing and usability testing?

Many UX specialists consider A/B testing as a usability testing method. It’s vital to understand that usability is all about having individuals experience a product’s functionality. And as we know, A/B testing is about experimenting with two or more versions of a page/screen to see which is most effective. The goal of A/B testing is to find the page that will convert better, while the purpose of usability testing is finding usability issues that prevent users from having great user experience.