In numerous areas of the world are being deployed 5G-test networks. Deployment of the 5G network does not mean that the users can use it as they do not have suitable hand-held devices. But the technology is being developed very fast and testing is ongoing, as seen from this brief story re-published here from the telecom paper [emphasis added DL]:
Qualcomm, Ericsson make 5G NR sub-6 GHz OTA call with mobile device
Tuesday 23 October 2018 | 09:19 CET | News
Qualcomm Technologies and Ericsson announced the successful completion of what they call the first 3GPP Rel-15 spec compliant 5G NR over-the-air (OTA) call over sub-6 GHz bands on a smartphone form factor mobile test device. The OTA call was conducted in the Ericsson Lab in Stockholm, Sweden on the 3.5 GHz band. Similar to the companies’ first OTA calls performed in September using millimetre wave (mmWave) in both 28 and 39 GHz spectrum bands, today’s sub-6 GHz call used Ericsson’s commercial 5G NR radio AIR 6488 and baseband products and a mobile test device powered by the Qualcomm Snapdragon X50 5G modem and RF subsystem.
In December 2017, Ericsson and Qualcomm Technologies announced interoperability development testing (IODT) to help pave the way for commercial launches of 5G NR standard-compliant infrastructure, smartphones and other mobile devices in the first half of 2019. The successful 5G OTA calls using both sub-6 GHz and mmWave bands are critical milestones in the commercialisation process as operators and OEMs around the world can now use the companies’ products to conduct their own tests in their labs and the field.
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And the “first 5G Nokia smartphone will come out in 2019, could be Nokia 9” . The contdown runs …
New paper about possible health effects of the 5G technology:
– Betzalel et al. (2018). The human skin as a sub-THz receiver – Does 5G pose a danger to it or not? Environmental Research, 
-> “We are raising a warning flag against the unrestricted use of sub-THz technologies for communication, before the possible consequences for public health are explored.”
– Madl et al. (2018). Selected Health and Law Issues Regarding Mobile Communications with Respect to 5G. IEEE, 2018 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom), 
-> “The calculated legal exposure limits of mobile devices were exceeded twice in areas within very poor reception values. Regarding the expected higher bandwidth and corresponding higher electromagnetic exposure to human bodies in future there have to be periodic measurements to comply with radiation limits.”
– Di Ciaula (2018). Towards 5G communication systems: Are there health implications? International Journal of Hygiene and Environmental Health, 
-> “available findings seem sufficient to demonstrate the existence of biomedical effects, to invoke the precautionary principle, to define exposed subjects as potentially vulnerable and to revise existing limits.”
As a scientist and a father I am wordied about the 5G technology, for multiple reasons. The precautionary principle should be immediately applied. But it will not happen.