The Fiido operates with a geared motor which means its case is connected to the stator through a planetary gear reduction system. To take the explanation one step further: in an electric motor, the stator provides a rotating magnetic field that drives the rotating armature. For every rotation of the case, the motor inside, in reality, turns many times faster.
Technical jargon aside, this means the geared motor system allows the motor to work at much higher and more efficient speeds thereby producing more torque and more power. You might have to be a techie to understand it, but anyone who rides this beauty will appreciate it.