They believe X-Ray vision, allowing users to see through walls, could be possible because of an extension of existing research on ultrasound.
Invisibility cloaks, like those worn by fictional characters including Harry Potter, could also become available in shops. Researchers are said to be developing fabrics that deceive the human eye by distorting light waves.
Meanwhile, material replicating a gecko's foot could be developed for gloves and boots, allowing people to stick to walls and climb like Spiderman.
The predictions were gathered by New Scientist magazine to mark the 30th anniversary of the first mobile telephone network. A Japanese company launched the first cellular network in Tokyo in 1979.
Scientists surveyed by the magazine also believed that within 30 years a handheld language-translating device, like the "Babel Fish" in The Hitchhiker's Guide to the Galaxy, could be developed, allowing the instant conversion of foreign words being heard by the user.
It could build on technology already used by US soldiers in Iraq, which recognises common speech patterns to translate Arabic into English.
A "handheld healing machine", similar to that wielded by Dr McCoy in Star Trek, was also included on the list. Scientists believe it could be pointed at a user's body to discover internal injuries and encourage healing.
An affordable and readily-available jet pack, like that used by James Bond in the film Thunderball, could also become part of consumer life in 2039, according to the experts. It would allow users to travel short distances quickly and to avoid roads.