Where should i store the user data to the database or to Redis cache

I have a workflow wizard type of web application (built with ReactJS) with 5 pages, with each page having some input fields and a “Save and Next” button and the final page has “Save and Submit” button.

The logged-in user has an option to logout after any page, he should be able to continue from where he left off when he logs-in back to the application.

My question is where should I save the user entered data on clicking “Save and Next” button on each page, I have an option of storing data to the database or Redis cache.