High-fidelity prototyping closely mirrors the final product's look and functionality. It involves detailed representations, like a 3D plastic model with movable parts or an interactive software version built using design tools.

Ideal for later design thinking stages like testing and implementation, high-fidelity prototypes provide stakeholders with a tangible realization of the shared vision. User testing with high-fidelity prototypes can yield valid insights into user responses, boosting design team confidence.

However, drawbacks include longer production times and higher costs. There could also be resistance to changes after an initial significant investment and the potential for giving a false impression of the final product's quality.