Small mice are generally under 115mm (4.5 inches) in length, while medium mice range from 115mm to 125mm (4.5 to 4.9 inches). The width and height are also key factors for a comfortable fit.

A lightweight mouse, typically under 80g, is highly recommended for FPS games. Lighter mice allow for faster, more reactive aim, which is crucial for making split-second decisions.

Ambidextrous, symmetrical shapes are often preferred by gamers with small hands. They work well with various grip styles and are ideal for quick, agile movements without the bulk of ergonomic contours.

Extremely important. A high-quality sensor from brands like PixArt or a modern proprietary sensor ensures pixel-perfect tracking and no spin-outs, which is critical for precision in competitive gaming.

High-quality switches are designed to withstand tens of millions of clicks. Look for reputable brands or specific switch types like Kailh or Omron, which are known for their longevity and crisp feel.