Faster Navigation: SPAs fetch a single HTML page and content is dynamically updated. So, the page reloads are reduced and this gives better speed.
Improved User Experience: The navigation from one view to another will be smooth and responsive because of no page reload.
Asynchronous Data Loading: SPAs fetch data asynchronously from the server, through AJAX or similar techniques.
Rich UI Components: SPAs are often used in application-type UIs that have complex UIs, such as dashboards or content management systems.
Advantages of SPAs
SPAs have faster interactions since the full page reload is less frequent.
It has better performance when data is cached because only the needed items are fetched.
A very interactive yet responsive user experience is achievable.
Drawbacks of SPAs
The content of the page cannot be indexed by search engines as it is loaded dynamically.
The first load could be slower since both the framework as well as the content have to be pre-fetch.
Browser history and state will add more complexity.
SPAs are suitable for applications where the user experience needs to be smooth and rather interactive, such as dashboards, social media, or even a web-based email client.