LTE-M, also known as LTE-MTC or LTE-eMTC, is a variant of 4G LTE (Long-Term Evolution) technology that is suitable for the Cellular Internet of Things (CIoT), and Machine-to-Machine (M2M) communications.

It is one of the key technologies enabling the Cellular Internet of Things (CIoT) ecosystem.

LTE-M is designed to have low power consumption. This allows IoT devices to operate for several years on a single battery. As it uses techniques like power-saving mode, and extended discontinuous reception (eDRX).

Compared to other IoT technologies such as NB-IoT, LTE-M offers higher data rates, and lower latency, but it has device higher power consumption.

Also this technology supports device mobility, allowing IoT devices to maintain connectivity even when moving at low to moderate speeds.