Viewport Width Distribution

Each visitor's actual screen width is measured and placed into one of five predefined buckets: small mobile under 360, mobile 360–428, tablet 429–1024, desktop 1025–1440, and large desktop over 1440 pixels.

This metric lets you watch your audience's real engagement surface instead of relying on generic industry assumptions. Imagine the frontend team wants to know which breakpoint to start responsive design from; this card shows your audience's real, live breakpoints so frontend and QA teams set design and testing priority exactly on this real distribution, with no wasted development effort.