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.

Snap has focused on improving the AR capabilities of its Spectacles, which now offers new features for users to enjoy.

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