4G is a network service that allows you to access the Internet while you are away from a Wi-Fi signal, for example when travelling. It’s an amazingly useful service, due to the fact that, as communication networks expand, online access is becoming more and more expensive. While public Wi-Fi spots are becoming more numerous – everywhere from pubs to McDonald’s has them, and many are free – there can still be charges, in some hotels for example.
4G access comes with all iPhones and is enabled by default, which means you can access the Internet wherever you happen to be, whether there’s a Wi-Fi signal or not. However, if you’re going abroad or looking to save on battery life, it’s a good idea to know how to tweak your settings,…
