If you are building an online store on Wix, then I would recommend using Wix-Stores . As the documentation states:
Wix Stores gives you all the tools you need to create a sleek, professional online store and grow your eComm business. You can display your products in stunning galleries, accept secured checkout, sell on multiple sales channels, and add dropshipping products to your store.
Regarding dynamic pages , the documentation states:
A dynamic page is a page that can change its content, while keeping the same design and layout. In Wix, any dynamic page that you add is connected to a collection in your content manager. This way, you can automatically populate 100’s of pages, just be entering info in your database collection.
While dynamic pages are powerful, and not really all that hard to work with, setting up a Wix Store is way easier than having to deal with dynamic pages and building your own store.
If you need further details or clarification regarding setting up your own Wix Store, I would recommend contacting Wix Customer Care .