Hoverboards are manufactured by different companies given you a much wider range of options to choose from, but Segway is the name of a specific product made by one company with a patent. Another crucial difference between a Segway and Hoverboard is their size. Segways are much larger machines with large wheels and weigh upwards of 50kg. But Hoverboards just weigh 10kg and can be carried easily. There are even mini segway at best price available in the market.