There are many components to a fully realized virtual reality experience. The visual aspect is obviously the most important piece of the puzzle, but it’s far from the only one. Accurate hand tracking is key as well. While hand tracking is pretty good in its current form on systems like the HTC Vive and Oculus Rift, there is room for improvement,

Source: Hot Hardware – Oculus Claims To Have Mastered Hand-Tracking Accuracy For Better VR Immersion