Oura’s Ring 5 claims the title of the world’s smallest smart ring.

Following his work on the world's smallest tiny house, YouTuber Levi Kelly is back with another exercise in extreme downsizing. This time, he’s created what he calls the world's smallest mobile tiny ...

If you've ever wondered how small a tiny house can actually get, this recently completed project by Levi Kelly may well provide an answer. Measuring a mere 19.46 sq ft (1.8 sq m), the extraordinarily ...

The world’s tiniest pacemaker — smaller than a grain of rice — could help save babies born with heart defects, say scientists. The miniature device can be inserted with a syringe and dissolves after ...

Add Yahoo as a preferred source to see more of our stories on Google. The world’s smallest park in Nagaizumi, Japan. - Guinness Worlds Record If you want to take a stroll around this park in Japan, ...

Cornell researchers in physics and engineering have created the smallest walking robot yet, and its tiny size is only a side-effect. Controlled by magnets and small enough to diffract visible light, ...

The world’s smallest Rubik’s Cube might have the world’s highest price tag, too. The fully functional six-sided puzzle cube by Japanese toymaker MegaHouse is so tiny it could fit under a finger nail, ...