Project Ara is an open-source modular smartphone concept that allows users to customize their device by attaching individual third-party components called "modules". The goal is to reduce electronic waste by allowing users to replace specific broken modules rather than the entire device. Project Ara smartphones are made of interchangeable modules that slide into an endoskeleton frame. Example modules include cameras, batteries, processors, and specialty additions like air quality sensors. The project aims to launch pilot programs in 2016 and release affordable basic devices for $100 that can be customized with a wide variety of third-party modules.