4G and 5G are two generations of mobile network technology. The main differences between 4G and 5G are:

1. Speed: 5G is much faster than 4G, with speeds up to 100 gigabits per second, while 4G only has speeds up to 100 megabits per second.
2. Latency: 5G has much lower latency (the time it takes for data to travel from one device to another) than 4G, with typical latency of just 1 millisecond compared to 50-60 milliseconds for 4G.
3. Capacity: 5G can support many more devices in a given area than 4G, enabling the growth of the Internet of Things (IoT) and other high-density use cases.
4. Bandwidth: 5G operates in a wider range of frequency bands than 4G, including high-frequency millimeter wave bands, enabling greater capacity and faster speeds.
5. Network architecture: 5G uses a more sophisticated network architecture than 4G, including cloud-native networking and network slicing, which enables new use cases and services.