Mobile Data vs. Wi-Fi

"When both Wi-Fi and mobile data are enabled on your smartphone, the device typically prioritizes Wi-Fi for data transfer because it is generally faster and more cost-effective than using mobile data. The device doesn't continuously switch between the networks just for the sake of speed; rather, it automatically uses Wi-Fi when it's available and falls back to mobile data when Wi-Fi is not present or the Wi-Fi signal is weak.

The decision to switch between Wi-Fi and mobile data is generally based on factors like network strength, data cost, and user preferences. If your smartphone is connected to a Wi-Fi network and the Wi-Fi signal is strong, it will prefer using Wi-Fi. If the Wi-Fi signal becomes weak or is lost, the device may switch to mobile data to maintain an internet connection.

This behavior helps in optimizing data usage and ensuring that your device uses the most efficient and cost-effective network available at a given moment."