Mobile environments require simpler navigation, focused content and fast page loads. If a website has a responsive web-design, the user does not have to manipulate the site using “pinch and zoom,” and the flow of content is more appropriate for a smaller screen. The site may reduce the amount of content presented to the mobile visitor, so it has less clutter and is easier to use.
You must zoom to read the buttons and then you can view only 2 or 3 at a time. The Responsive website is much easier to use. Think of responsive design as toolkit for web designers that enables them to offer a more app-like experience in their clients’ websites when viewed on a mobile or tablet device, all without having to build an app version.