What is 3G and 4G? What is the difference?

3G is the third generation of wireless telecommunication technology that uses a network of phone towers to pass signals over long distances.

4G, as the fourth generation of wireless telecommunication technology, builds upon what 3G offers but provides a more consistent and faster experience. Devices connected to a 4G mobile network will get a quicker response to a request than the same device connected to a 3G network, due to much lower latency.