![Person wearing XREAL Air 2 AR smart glasses](https://cdn.mos.cms.futurecdn.net/JZ2igdcfAcTZsUvyRHz5DV-320-80.jpg)
What are smart glasses? Yesteryear’s ‘next big thing’ is finally finding an audience
After a false start with Google Glass, smart glasses could be primed to finally make it in the mainstream. Here's an introduction to the wearable ten years in the making.