What is 5G? The"G"in"5G" refers to the generations(代) of mobile network technologies. IG let us talk to each other, 2G let us send messages, 3G gave us mobile data and the Internet, and 4G made all of these things faster. Now 5G promises much faster data download (下载) and upload speeds, and better connections. This means that you will be able to download a whole HD movie in seconds and only experience a short delay( 延迟) between sending and receiving data. For example, when you have a video chat with your friend, there is generally a 100 to 200 millisecond delay with 4G, but 5G will decrease the delay to 1 millisecond or less. Which is almost real time.
According to the Straits Times, 5G will be able to improve many technologies, such as driverless cars, wearable devices(可以穿戴或佩带的装置或设备) and amusement. With a 5G network, the short delay will allow driverless cars to run more safely. They will be able to communicate in real time so as to avoid some dangers. What's more, wearable devices with 5G will help doctors watch better the health condition of their patients. I f there's something wrong, they will warn doctors at once. Besides, VR games will become more popular with 5G. The short delay of 5G will make the games feel even more real.
