This radar chart compares three smartphone brands—iPhone, Samsung, and Nokia—across eight attributes such as battery life, brand, and contract cost. The chart uses smoothed, rounded paths and colored blobs with glow filters to highlight each brand’s profile, with seven concentric grid levels and percentage labels. Built with D3.js v3 and React, it renders as SVG with animated transitions, using an ordinal color scale and a linear radius scale to map values within a circular grid.