Both NB-IoT and LTE-M (also known as Cat-M1) are next-generation LPWAN (Low Power Wide Area Network) cellular networks, specifically designed to provide IoT (Internet of Things) connectivity. 3GPP is the body that regulates these two standards, and all other cellular communications standards. Both technologies are provided by a telecommunications cellular operator, require a SIM card, and use exclusive frequency bands, in which no one else can transmit signals. However, they are not the same.

LTE-M offers higher communication speeds, allows mobility and voice communications, but the cost of the radio transceivers is higher and the battery life is shorter. For its part, NB-IoT offers a lower speed, it is not designed to connect objects with mobility, but it allows the design of very low-cost devices with longer battery life. Although both technologies are applicable to design Luminaire Controllers, NB-IoT offers advantages. For this reason, most operators in Europe have chosen to deploy NB-IoT networks, while only some opt for LTE-M.