Unlike what most people think, the suction powers of your vacuums aren’t measured by the wattages or the amperages that were displayed on the machines. These are just mechanical data that can be used to measure their motor units. And more specifically, the wattages measure how much electric power can the motor draws out, while the amperages show the amount of electricity that is passing the current. These can come handy in measuring certain vacuums with similar designs, but shouldn’t be used for universal comparisons. For that, you should take into account the designs, filtration system, and efficiency of the machines. And the best measurement unit should be the airwatt, which refers to the airflow that the vacuum produces and the amount of watts that were drawn out by the device.