If there were a mobile IoT device needing only a low data rate and not needing low latency, would NB-IoT be a good connectivity option? Would LTE-M be better?

‘Mobile’ is key here. A device that will physically move many kilometres.

(Assuming both LTE-M and NB-IoT were available in the relevant geographies, and that the module to be deployed would support only one of NB-IoT or LTE-M.)

I’ve seen statements that LTE-M is better for mobile applications, but I can’t find info on why it would be better in the situation described above.

  • $\begingroup$ Radio access wise, LTE-M is designed with smaller latency and, therefore, is better suited for applications requiring mobility. There are also assumptions and implementations at protocol levels, e.g. only cell reselection for NB-IoT. Just search for "3GPP eMTC applications". $\endgroup$
    – AlexTP
    Jul 16, 2021 at 11:49
  • $\begingroup$ For example, (2017, but still good) qualcomm.com/system/files/document/files/… $\endgroup$
    – AlexTP
    Jul 16, 2021 at 11:50
  • $\begingroup$ Thanks @AlexTP helpful link $\endgroup$
    – David
    Jul 17, 2021 at 19:38


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