A smoothed radar chart visualizes three mobile phone brands—iPhone, Samsung, and Nokia—across eight attributes such as Battery Life, Brand, and Price of Device. Each brand appears as a colored, semi-transparent polygon overlaid on a circular grid of seven concentric rings, with glowing SVG paths and dot markers at each axis value. The chart is rendered in React using D3.js v3, leveraging the `d3.scale.linear` API for radial scaling and `d3.select` to append SVG elements, with an animated glow filter applied via `feGaussianBlur`.