CAT-M1 (LTE-M) is a cellular technology that belongs to the lower version of the 4G family and can fully reuse existing 4G resources. It has the characteristics of low power consumption, low cost, and high speed. Commonly referred to as Cat-1 or Cat1 domestically. Specially designed for the needs of applications targeting Internet of Things (IoT) or machine to machine (M2M) communication.
