LTE-M

LTE-M (LTE Cat-M1) is 3GPP's cellular IoTITermIoT (Internet of Things)The IoT (Internet of Things) is the network of physical objects with sensors, software and connectivity that collect and exchange data and act autonomously.View profile variant aimed at a balance of power, bandwidth and mobility. Unlike NB-IoTProtocolNB-IoT3GPP-standardized cellular LPWAN — carrier coverageView profile, it supports cell handover and voice (VoLTE), making it suitable for moving devices.

With PSM and eDRX power-saving modes it reaches years of battery life, and it reuses operators' existing LTE networks. It is the choice for mobile trackers, wearables, alarms and telemetry that need more than NB-IoT's few kbps.