The most intuitive difference is the difference in power, the power of a car is 50 watts, the power of another car is 20 watts, which also leads to the difference in its charging speed, the charging speed of 50w wireless car is much faster than that of 20w. The appearance of the car charger is different, the front panel ring indicator of the 20w wireless car charger is replaced with a blue indicator, and there is no on-board charger.