unit 14 M2

The main difference between 3g and wifi is the speed of the network, wifi is generally a lot faster than 3g. This is because you are closer to it so the signal is stronger. But with 3g you are always connected but it is kind of slow. Wifi is good because it allows you to access all areas of the internet a lot faster than 3g would allow you to. Although 3g is faster for emails. Another difference is that sending a picture message over 3g cost £1.50 whereas with wifi it is free.