4G：
4G是一种手机网络技术，和它的前身3G一样，可以用来下载数据和上网，但不同的是它比3G快很多。
5G：
5G 是第五代无线网络技术。它建立在所谓的毫米波之上，这是一段从 20 GHz 一直到 96 GHz 的非常高的频谱。
4G和5G的区别：
| S No. | 4G technology | 5G technology |
|---|---|---|
| 1. | It stands for Fourth Generation technology | It stands for Fifth Generation technology |
| 2. | The maximum upload rate of 4G technology is 500 Mbps | While the maximum upload rate of 5G technology is 1.25 Gbps |
| 3. | The maximum download rate of 4G technology is 1 Gbps | While the maximum download rate of 5G technology is 2.5 Gbps. |
| 4. | The latency of 4G technology is about 50 ms | While the latency of 5G technology is about 1 ms |
| 5. | 4G offers CDMA | While 5G offers OFDM, BDMA |
| 6. | 4G can’t differentiate between fixed and mobile devices | While 5G has the capability to differentiate between fixed and mobile devices. It uses cognitive radio techniques to identify each device and offer the most appropriate delivery channel. |
| 7. | 4G has the advantages of high speed handoffs, global mobility | While 5G has the advantages of extremely high speeds, low latency |
| 8. | 4G can be used for high speed applications, mobile TV, wearable devices | While 5G can be used for high resolution video streaming, remote control of vehicles, robots and medical procedures |
| 9. | It is slow and less efficient in comparison of 5G | It is fast and more efficient than 4G |