Lenovo “Magic View” concept is a crazy mix of a smartwatch and Google Glass
Ars Technica 2015-09-02
The viewfinder reminds us a lot of Google Glass, and it seems to be based on the same technology: light is projected into a prism that serves as the display surface. Google Glass used this to make a see-through display, but on the Magic View, the prism is encased in the watch, so there is a solid black background. And just like Google Glass, the display was so pixel dense and the lenses focused it so that holding it up to your face made me think I was looking at a much larger display
Lenovo's Android-based watch OS would allow you to send certain images or movies to the viewfinder by swiping down with two fingers. Then just hold the display up to your eye to enter a little world of media. The display is virtually impossible to see unless you're holding it right up to your eye—from any other angle it looks like a solar panel from a cheap calculator.