Display head tracking is the standout missing capability. The screen generally follows head movement instead of staying fixed in the room, which limits spatial use and can trigger motion discomfort.
Pros: offline functionality, cloud dependency
Cons: tracking stability, power efficiency
There is no native head-tracked anchoring, so the image follows every head movement. That keeps cost down but is one of the most frequently cited missing premium features.
Pros: heads-up display, charging method
Cons: low-light visibility, Bluetooth connectivity