There is much fictional technology that should be real throughout the world of science fiction and fantasy. Part of the fun of these devices is that they are so far removed from our reality. Hoverboards and memory scanners would look a lot less impressive onscreen if we already used them in our everyday lives.
However, tech that doesn’t exist can even be inspiring for real world inventors and scientists. In a few decades, these devices might be very real.
Transporters Taken form the hit series Star Trek. This device would be able to instantaneously transport someone from one location to another location.
Holodeck Another device from the Star Trek series. This is an advanced virtual reality machine that allows the user to live out whatever fantasy they have in a very realistic environment.