From the numerous reactions of floored amazement, HTC/Valve’s Vive seems to have surpassed the other contenders.
The key features that enable a more complete VR experience:
Lighthouse: extremely precise body and head-gear position-tracking via two wall-mounted sensors.
SteamVR Controllers: dual controllers for touch and motion, the positions of which are also precisely tracked.
Source: HTC Vive: Virtual Reality That’s So Damn Real I Can’t Even Handle It
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Once upon a midnight dreary, while I pondered, weak and weary,
Over many a quaint and curious volume of forgotten lore,
While I nodded, nearly napping, suddenly there came a tapping,
As of someone gently rapping, rapping at my chamber door.
“‘Tis some visitor,” I muttered, “tapping at my chamber door;
Only this, and nothing more.”
- Edgar Allen Poe, The Raven
In order to produce a truly stand-out watch, Apple had to radically improve upon or create new methods of interaction. Otherwise, the Apple Watch would just be a shrunken-down phone/pad.
The human input and output of the Apple Watch mainly focus on watch-face interaction and the “Digital Crown” controller, which on its own is quite clever. But one i/o feature that I find sublime is the ability for the watch to send and immediately receive taps via the “Taptic Engine”.
Taptic might be powered by some sort of tiny electromagnetic solenoid, or perhaps a deep-base speaker. What it enables is for people to send a series of taps to each other.
The possibilities for subtle and silent communication are endless.
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