Generally speaking, the closer the mobile phone is to the base station, the smaller the radiation will be, and vice versa, because the farther the distance is, the greater the transmission power is needed, which is why satellite communication cannot be popularized. The power requirement is too high and the power consumption is high.
The development direction of 5G technology using high-density small base stations. Relatively speaking, the distance between the mobile phone and the base station will be shortened and the power will be reduced. On the other hand, 5G adopts phased array system, which has better signal directivity, enhanced signal and greatly reduced transmission power at the same power. As can be seen from the figure below, the radiation of 5G Nokia 9 is smaller than that of old people using 3G and 4G.
However, the frequency of use of elderly mobile phones is much lower than that of smart phones. Except that the mobile phone is basically not used at ordinary times, it can only be said that the radiation to the human body may be less.
Because Nokia is a well-known manufacturer of functional machines, in recent years, it has also introduced many replica versions of old-age machines. At the same time, the product testing environment and related testing standards of the same company are usually similar.