The BG-95 M3 has NB-IoT and 2G in addition to LTE-M. The point of this gateway was mostly to have a platform for rapid prototyping and flexibility in applicati

The BG-95 M3 has NB-IoT and 2G in addition to LTE-M. The point of this gateway was mostly to have a platform for rapid prototyping and flexibility in applications where power consumption isn't a concern. And in many scenarios you can have a gateway that is plugged into the wall and need not run on batteries. It also provides a platform where the gateway is suitable to run more involved server software, to eliminate the need for separate server infrastructure. We've made a few low power gateways based on the nRF9160 from Nordic Semiconductor, but while these are really small and draw very little power, they are also very resource constrained. So you can't run server software on them.