The 1Rollo one-wheeled AI security robot uses a spinning flywheel to balance while patrolling properties at speeds up to 19 mph on a single charge.

Why pay to design and mass-produce a four-wheeled autonomous security robot, when you can make a less costly one with just one wheel? That's the thinking behind the 1Rollo, a monowheel-bot that could soon be patrolling near you.