If you're new to the concept, an interactive projector is a device that allows you to interact directly with the projected image, turning any surface into an interactive touchscreen. This is particularly useful in educational settings, business presentations, and even home entertainment, as it combines the functionality of a traditional projector with the interactivity of a smartboard or tablet.

Here's how it works: the projector uses sensors, cameras, or infrared technology to detect touch inputs, whether you're using a finger, stylus, or even a dedicated pen. This allows users to draw, write, or control applications directly on the projection surface.

It's important to note that not all interactive projectors come with built-in Android. While some models, like the Epson BrightLink series or BenQ’s interactive projectors, do offer built-in Android, allowing you to run apps and stream content without needing an external device, many others rely solely on the interactivity feature without the Android platform.