Is it really necessary to turn off mobile data when using WiFi?

Many people wonder whether they should turn off mobile data when connected to WiFi to save data and avoid losing money silently.

According to Wired, when using public WiFi with a weak signal, the phone can automatically switch to the cellular network to stay connected.

This helps surf the web more smoothly but also silently "consumes" 4G data without the user knowing.

If you are at home with a stable WiFi network, you do not necessarily need to turn off mobile data.

However, if you travel a lot or often encounter weak WiFi areas, turning off 4G helps limit unwanted data leakage.

Some modern smartphones support the WLAN+ feature to automatically choose the best network between WiFi and 4G.

This feature can use both connections in parallel, optimizing the experience but consuming quite a bit of data.

If you are on a limited plan, be proactive in turning off mobile data when not needed.

In short, turning on or off 4G when WiFi is available depends on your usage needs and the data package you are subscribed to.

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Source: https://khoahocdoisong.vn/tat-du-lieu-di-dong-khi-dung-wifi-co-that-su-can-thiet-post1555096.html