This is not really a fair fight, and that is the first thing to understand. Wix is a website builder. Vercel is a hosting and deployment platform for sites that someone has built in code. Comparing them is like comparing a furnished apartment to a plot of land with utilities. Both can be the right answer. They are answers to different questions.
Wix gives you the editor, the templates, the hosting, the domain management and the app marketplace in one subscription. You can have a respectable site live in a weekend without writing anything. The tradeoff is that everything runs inside Wix's box. Performance is what Wix decides it is, animation and interaction are limited to what the editor supports, and if you ever want to move, you rebuild from scratch because there is no export of the site as code. Domain and email arrangements bought through Wix can also get tangled with Wix's resellers, which is a headache you only discover when you try to leave.
Vercel gives you almost nothing out of the box except an excellent place to put a site. You bring the code, whether that is a framework like Next.js or plain HTML, connect a repository, and every push deploys automatically with a preview link. Domains are simple and cheap to attach, performance is excellent by default because it serves static assets from a global edge network, and you have total control over what the site does. The tradeoff is that someone has to build and maintain the thing, and if that someone is not you, you are paying a developer or an agency.
So the real differences are control, ceiling and ownership. Wix has a low floor and a low ceiling. Vercel has a higher floor and no ceiling. Wix owns the site. On Vercel, you do.
When we rebuilt our own site this year, we moved from Wix to Vercel for exactly those reasons. We wanted custom motion, a portfolio that behaves the way we designed it rather than the way a template allows, and the ability to spin up additional domains and landing pages in minutes without another subscription. That is an agency's list of needs. It is not everyone's.
Here is how we would choose. If you need a site up this month, you will maintain it yourself, and your business does not compete on the site experience, use Wix and do not overthink it. If the website is a meaningful part of how you sell, if you care about speed and search performance, or if you expect the site to grow into something custom, build it properly and host it on Vercel. And if you are on Wix today and feeling the ceiling, plan the move before the ceiling starts costing you customers.
Building and hosting on Vercel is now our default for client sites at Burgama, for the same reasons we chose it for our own.