The first hand-held cell phone was demonstrated by John F. Mitchell and Dr. Martin Cooper of Motorola in 1973, using a handset weighing around 4.4 pounds (2 kg). In 1983, the DynaTAC 8000x
was the first to be commercially available. From 1990 to 2011,
worldwide mobile phone subscriptions grew from 12.4 million to over 6
billion, penetrating about 87% of the global population and reaching the
bottom of the economic pyramid.
The first handheld mobile cell phone was demonstrated by Motorola in 1973. The first commercial automated cellular network was launched in Japan by NTT in 1979. In 1981, this was followed by the simultaneous launch of the Nordic Mobile Telephone (NMT) system in Denmark, Finland, Norway and Sweden.
Several other countries then followed in the early to mid-1980s. These
first generatiion ("1G") systems could support far more simultaneous
calls, but still used analog technology.