New Delhi, March 23 -- Earlier this month at MWC Barcelona, which took place between 3 March and 6 March, the tech showcased was not just about new smartphone launches, announcements related to mobile communications, and artificial intelligence. The show's real star is actually the multitude of prototypes and concept devices on display.

With over 100,000 attendees year after year, the Fira de Barcelona Gran Via show floor attracts people who seek outlandish tech and sometimes ready-for-release prototypes.

Here are all the wacky, practical, and never-to-be-released items showcased on the show floor at MWC Barcelona this year.

Two major smartphone manufacturers came to MWC Barcelona armed with ultra-thin smartphones. Manufacturers want t...