4G is the latest 4th generation mobile phone technology which follows on from 3G.
Because of the improvement of technology, 4G means that connection to the internet is stronger and more reliable so you’re less likely to lose connection when you’re out and about, plus you’ll see improved reception for calls and texts as well.
It is up to 5 times faster than 3G – to download a 10 minute video over 3G takes minutes, whereas on 4G it takes seconds.
4G speed will depend on your location and the number of people using 4G. If you move out of a 4G area you usually have access to 3G network.