5G, original name 5th generation mobile networks or 5th generation wireless systems, succeeds the 4G (LTE/WiMax), 3G (UMTS) and 2G (GSM) systems. It means that you can use the 5G mobile phone to make a phone call with 4G/3G/2G mobile phone.
Because we need faster network and better service, there have tens of countries being closed the 2G network, for example, US, Australia, Canada, Japan, China, and the time to close 3G network is on schedule. We need to upgrade the 4G network because it is not fast enough.
The first one international 5G standard(R15? was set at the 3GPP(3rd Generation Partnership Project) conference in San Diego On June 13, 2018, US time. The complete 5G international standards will be finished in 2020 and Submitted to ITU (International Telecommunication Union).
What Advantage does 5G network have?
Faster download/upload speed than 4G network.
Wider signal range than 4G network.
Less Network latency than 4G network.
Theoretical maximum speed of 4G is 50M/S-1G/S, but the speed of 5G is up to 20G/S. 5G is faster than 4G in speed. You can download a 2G movie with seconds.
Qualcomm Announced that 5G Andoird phone will be available in next year, 2019 on Qualcomm 4G/5G Summit. It will be a good news for you.
XIAOMI company said that the first 5G mobile phone of XIAOMI will be available in first season in 2019.
Unfortunately, to against Qualcomm company, the first 5G Iphone will be available in 2020, which will use Intel chip instead of Qualcomm chip.
The 5G mobile phone will be available in 2019, but I doubt that the 5G mobile phone will not be suit for everywhere. Because the base station construction will be a big problem. Without upgrading base station, the 5G network cannot be as popular as 4G network. 4G network has taken 3-4 years to upgrade the base station construction, so how long do you think the 5G base station construction take?
The 5G mobile phone is a good phone, but however, your guys still have to use the 4G mobile for 1-3 years. So 4G mobile phone is still an important part of phone market next 1-3 years.