When shopping for an LED display, pixel pitch (labeled P2.5, P3, P4, P6, and so on) is the single factor that most shapes overall cost, the minimum viewing distance you need, and which applications the screen is suited for. A smaller pitch number means denser pixels and finer image detail, but a higher cost per square foot for the same area. A larger pitch number is better suited to long-distance viewing on large-format screens, and typically costs less per square foot. This guide walks through P2.5, P3, P4, and P6 pitch classes, the applications each is commonly used for in…