Browsers and Devices

Viewport and screen resolution are related to the display of web content, but they represent different concepts.

On any device, you can visit What is my viewport to check the viewport for your screen.

Viewport refers to the visible area of a web page within a browser window or device screen. It is the portion of the screen where the web content is displayed. The size of the viewport can vary depending on the device and the browser window size. In responsive web design, the viewport is an important consideration for designing and adapting the layout of web pages to different screen sizes and orientations.

Screen resolution, on the other hand, refers to the number of pixels available on a display screen. It represents the level of detail and clarity of the visual output. Screen resolution is typically expressed as the number of horizontal pixels multiplied by the number of vertical pixels, such as 1920x1080 (Full HD) or 3840x2160 (4K Ultra HD). Higher screen resolutions generally provide sharper and more detailed visuals.

The viewport and screen resolution are related because the size and resolution of the screen influence the size and rendering of the viewport. However, it's important to note that the viewport can be smaller or larger than the screen resolution due to factors like zoom level, device pixel ratio, or the presence of browser toolbars.

In summary, the viewport represents the visible area of a web page within a browser window or device screen, while screen resolution refers to the number of pixels available on a display screen. The viewport adapts to different screen sizes and orientations, while screen resolution determines the level of detail and clarity of the visual output.