With a smart projector, you have access to smart platforms via the internet to stream movies, series, and videos. As a result, you don't need external devices, such as a laptop and an HDMI cable. So you can easily watch your favorite Netflix series or YouTube videos. Some projectors have a smart platform and other smart projectors have a built-in media player, such as a Chromecast. Note: not all projectors support the same apps and functions. So keep in mind which apps you like to use.