The best smart glasses can display massive virtual screens but require a phone ... spurred by an impressive Meta Orion prototype demonstration and the powerful new Snap Spectacles update.

The Total Immersion developers released a free iPhone app in the App Store a few days ago that uses augmented reality face-tracking technologies to let you try virtual glasses and see how they fit.

According to IDC "Worldwide Augmented and Virtual ... interactive demonstrations featuring real-world applications, including the reference design (verification model) of the AR glasses announced ...