The DC electric motor is the powerplant of your electric scooter. It determines top speed, acceleration, hill climbing ability, power consumption, and performance with a heavier rider. All electric scooters have at least motor, while high performance scooters will have two.
A higher motor watt rating, in general, means the motor will accelerate more quickly, carry more rider weight, and climb steeper hills.
Electric scooter brushless motor is newer a technology that are better than brushed motor. Electric scooter brushless motors are more efficient, have better power-to-weight, and are more durable. Most quality electric scooters will have them.