Apple - Vision Pro vs Valve - Index

The Index is the clear pick on raw spec strength, leading by 37.3 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the Vision Pro if you care most about eye tracking and color passthrough. The biggest gaps in its favor are eye tracking, color passthrough, standalone.

Pick the Index if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. Its strongest claims are refresh rate, field of view.

There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.

Bottom line: the Index is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.