The duration of an iOS update, specifically iOS 18, varies based on several factors. These factors collectively influence the overall time required to complete the installation process on a compatible iPhone or iPad. For instance, the speed of the network connection used to download the update file directly affects the initial phase of the process.
Understanding the potential timeframe for a major operating system upgrade is beneficial for users planning their update schedule. It allows for appropriate time allocation and minimizes potential disruption to device usage. Past iOS updates have exhibited varying installation times, demonstrating the influence of server load, update size, and device capabilities.