https://www.cnet.com/news/kopins-new-tiny-usb-c-ar-headset-clips-onto-anything-and-runs-off-your-phone/

Is it better to have a self-contained pair of smart glasses, or something that simply uses your phone to do the heavy lifting and battery power? Kopin, a manufacturer of microdisplays and smart glasses components, is betting on the latter.

The Kopin Golden-i Infinity isn't really an AR device, so much as it is a smart screen that plugs into an Android or Windows device. Using a USB-C cable, it runs power and can connect to apps. And the whole things works with voice control, or taking your phone out and using apps directly.