This is a good question, why would you buy a device from us when cheaper alternatives are available? There are some cheap brands on the market that equip their unicycles with inferior materials and gyroscopes.
This puts your safety at risk. Gyroscopes that react slower are guaranteed to cause a lot of falls.
In addition, the engines are of less quality and can block at cruising speed. Even explosions of the engine are not rare.
Only a few known brands are reliable on the market and of all of these known brands, Ninebot has the leading market position.