Cellular modules are currently divided into 2G (GSM/GPRS), 3G (UMTS), 4G (LTE) and 5G (New Radio, NR). NB-IoT and LTE-M are LPWAN technologies introduced under 4G and migrated to 5G. 5G is an umbrella of many different 5G technologies. NB-IoT and LTE-M belong to mMTC (Massive machine type communications) within 5G. There is also 5G eMBB (enhanced mobile broadband) and 5G uRLLC (Ultra Reliable and Low Latency Communications). Crout offers you the radio modules, antennas, SIM cards with the necessary consulting on the choice of components, SIM cards and protocols.