The intent of this post is not to say which technology is better or worse. But, rather to show how Cellular IoT and LoRaWAN complement each other.
Battery lifetime is by far one of the most important considerations for LPWAN applications because often it is very expensive to replace batteries physically. It will ruin the ROI if the end-devices last only few years. There are many applications in which device is deployed in hard to reach areas and need battery lifetime of 10+ years.
Every modem whether LoRAWAN or Cellular IoT has to go different states (transmit, receive, Idle and Sleep). It is the current consumption of these states that defines the power consumption calculation.