Why speed test result using the Zyxel Air App show lower speeds compared to the speed test on router

Zyxel_Bella

When using the Zyxel Air App, the speed is measured from the end device to the speed test server, due to end device connects to Wi-Fi radio 2.4GHz with low rate so it will have lower speed result.

The speed test on router GUI is measured from the router to the speed test server.

The speed test results may differ due to the method and path each application uses to measure speed. Thus, two ways may result in huge difference.