On April 3, 1973, Martin Cooper, a former MOTOROLA executive, made the first mobile phone.

The phone used by Martin Cooper weighs about 1.13 kilograms, can talk for a total of 10 minutes, and is the prototype of the world's first commercial mobile phone, the MOTOROLA DynaTAC 8000x.

Today, 45 years after the first mobile phone call, almost everyone has a mobile phone. Reviewing the development process of mobile phones, there have been earth-shaking changes in shape and function. The development of mobile phones has also gone through changes again and again...

History of mobile phone development

Analog mobile age

The first generation of mobile communications, or 1G for short, was dominated by MOTOROLA.

The quality of the analog mobile phone system is completely comparable to that of a landline phone, and both parties can clearly hear each other's voice. However, the security performance of analog mobile communication is poor compared with that of digital communication, and it is easy to be attacked by parallel computers. It can only realize voice services, and cannot provide colorful value-added services. The network coverage is small and the roaming function is poor.