This bubble chart visualizes the correlation between processor speed, RAM, and battery life for 20 smartphone brands. Each circle’s x-position maps to processor speed, its y-position to RAM, and its radius encodes battery life hours, with color distinguishing brands. The visualization uses D3.js v7 with SVG rendering, employing `d3.scaleLinear` for axes and bubble size, `d3.scaleOrdinal` with `schemeCategory10` for colors, and `d3.axisBottom` and `d3.axisLeft` for axes. Data is loaded from a CSV file, and a legend identifies each brand.