Smart glasses include any eyewear that contains electronic components and can do anything beyond correcting your vision or protecting your eyes. As you can imagine, that covers a wide array of devices that can do completely different things. We can sort smart glasses down to a few specific types, with some overlap between them. Audio smart glasses have speakers built into the frame, allowing them to function as headphones. Augmented reality smart glasses use tiny projectors and lenses to display a picture as if there were a screen in front of your eyes. Social media-focused smart glasses feature built-in cameras to let you capture photos and videos, and even live stream. There are some rarer types of smart glasses as well, like Chamelo's Music Shield and Dusk glasses. They use liquid crystal lenses to provide an adjustable tint, switching from transparent to sunglasses with a tap or through an app. Some AR glasses like the Viture Pro and the XReal Air 2 Pro use a similar technology with less precise control. Their displays make them bulkier and less suitable for casually walking around. While they have strong connections to computers and video games, blue-light-blocking glasses aren't actually smart glasses. They don't have any electronics inside and simply rely on lens coatings to reduce the amount of blue light exposure to reduce eye strain. They can be soothing but are not smart in the vein we're talking about here.