A key difference between the Crystal Light and Crystal Super is the presence of eye-tracking. Eye-tracking in VR is primarily used for Dynamic Foveated Rendering (DFR) or capturing facial expressions. For flight and racing simulation enthusiasts, the presence of foveated rendering is particularly important.

The Crystal Light does not include eye-tracking, but it uses an advanced Fixed Foveated Rendering 2.0. This technique reduces the resolution in the peripheral vision, aligning with how the human eye naturally perceives the world. FFR allows for improved performance without sacrificing clarity in your central screen. Many players who haven't experienced DFR report little to no issue with the reduced resolution at the edges of the screen.

The Crystal Super, on the other hand, utilizes eye-tracking to enable DFR. This dynamically adjusts image quality based on where the user is looking, ensuring the center of where you look is rendered with full detail. In fast-paced scenarios like combat flight, DFR helps you spot enemies or cockpit instruments quickly while maintaining immersion without inconsistencies in clarity. This is particularly beneficial in high-dynamics scenes, where rapid visual adjustments are crucial.

For games that typically focus on the central area of the screen or don't require rapid visual switching, eye-tracking may not be an essential feature. However, for players engaging in dynamic, high-speed simulations, DFR offers a noticeable improvement in both immersion and visual responsiveness.