The Genie S-125 is a telescopic boom lift in Genie's aerial lift lineup, designed for high-reach access in construction, maintenance, industrial, and utility applications. It is commonly used for tasks requiring elevated work platforms, such as steel erection, building envelope work, facility maintenance, and overhead installation. The S-125 features a boom configuration intended for extended horizontal outreach and vertical access, with a self-propelled chassis for jobsite mobility. As an aerial lift, it is typically selected for work at height where stable platform positioning and reach are required. Specifications may vary by model year and configuration.