Mobile data, such as 3G and 4G, is very useful when you’re away from home, because it lets you stay connected to the internet when you can’t get access to Wi-Fi. Most mobile contracts include a free data allowance – but this allowance can run out in no time, after which it quickly gets very expensive indeed.
So if you’re travelling or sending photos and videos
to someone abroad, don’t use mobile data. To be on the safe side, switch
it off in your device settings. With mobile data switched off, your
phone or tablet will only use Wi-Fi, which is often free, even when
you’re far from home.
If you have an Android device, go to the main Settings menu and look for
a mobile data setting (usually called something like Mobile Data or
‘Wireless & Networks’). Untick or switch off settings for both
mobile data and roaming data. If you have an iPad or iPhone, tap
Settings, then Mobile, and move the Mobile Data slider to Off.
To make sure your device isn’t using mobile data, download the free app My Data Manager (www.mydatamanagerapp.com,
Android or iOS – see screenshot). The app alerts you if your device
downloads just 1MB of data via 3G or 4G, or incurs any roaming charges.
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