While Apple has committed a considerable investment toward its augmented reality project, the Financial Times reports the company still has multiple prototypes for its rumored AR glasses. People familiar with the project said some of Apple’s AR glasses are separate units that rely on their own internal displays to overlay a virtual world on top of the real one, other methods rely on an iPhone inserted into a headset to create the effect. Some Apple engineers have pushed for the glasses to have their own 3D cameras, but rely on the iPhone for display purposes. The iPhone’s pixel count is lower than that of the Oculus Rift or HTC Vive—making it likely to fall far behind those devices when used for up-close viewing—but with the iPhone 8 expected to contain a higher pixel density than the iPhone 7 Plus and the latest iPad Pros getting a bump to a 120Hz refresh rate, Apple is showing signs of closing the gap. [via AppleInsider]