World's Smallest

In a perfect world, the only objects that anyone would ever wish to print on would be sheets of paper. Given that this isn't a perfect world, though, The God Things has created what it claims is the smallest-ever mobile color printer – the PrinCube.

If you're going to be using a "smart" eyewear device for long periods of time, then it had better be light and unobtrusive. Well, ThirdEye's X2 Glasses may fit the bill, as they're said to be the world's smallest mixed reality glasses.

OmniVision has announced that its OV6948 unit has been declared the world's smallest commercially available image sensor by Guinness World Records. And the company has now squeezed it into a new camera module.

Researchers at Cambridge University have managed to create the smallest pixels in the world, about a million times tinier than those in a phone. These new pixels could be used in huge, flexible displays that are relatively easy to manufacture and cheaper to run.

​Ordinarily, cycling power meters are mounted on the crank, pedal, or sometimes even the rider's shoe. The AroFly, however, takes a different approach – it threads onto the rear tire's Schrader or Presta valve stem. It's also claimed to be the world's smallest power meter.

"World’s smallest computer” is a contentious title, not just because scientists are racing to shrink devices, but because the very definition of a computer could be up for debate. The latest claim to the title is a tiny device that communicates through light and makes a grain of rice look gigantic.

​OK, we know that tiny houses are becoming increasingly popular, but this is really taking things to an extreme. In order to demonstrate the capabilities of a new nanorobotic system, French scientists have built a "microhouse" that sits on the cleaved end of an optical fiber.

​According to its creators, the currently-crowdfunding PocketSprite is the world’s smallest playable emulation device. It isn't just tiny, though – it plays all Game Boy, Game Boy Color, Sega Master System, and Game Gear games, plus users can upload other games via Wi-Fi.

​We've already seen bracelets that monitor the wearer's exposure to the sun's ultraviolet rays. Now, L’Oréal has teamed up with Northwestern University to create a thumbnail-mounted gadget that does the same job. According to the university, it is the world's smallest wearable device.

While myFC's PowerTrekk fuel cell/battery is a handy device for off-grid device-charging, it's not exactly the type of thing that you'd just slip into a purse or pocket. The company’s new JAQ, however, is exactly that. It's being billed as the world's smallest fuel cell charger.​

Lance Abernethy, a maintenance engineer from Auckland, New Zealand has 3D-printed a working circular saw that fits in a briefcase slightly bigger than a thumbnail. It took him less than an hour to print the entire thing.

According to its manufacturers, the human-powered A-Bike is the world's smallest, lightest folding bicycle. It's certainly also one of the strangest-looking. Now, a group of entrepreneurs are hoping to extend its claims to the world of e-bikes, with the A-Bike Electric.