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There are LTE-M and NB-IoT for low power IoT on 4G. NB-IoT is for low bandwidth and super low power, LTE-M is for regular data but limited bandwidth. I think NB

There are LTE-M and NB-IoT for low power IoT on 4G. NB-IoT is for low bandwidth and super low power, LTE-M is for regular data but limited bandwidth. I think NB-IoT needs new gear on towers while LTE-M uses existing LTE. NB-IoT is lower power and wider coverage than GSM.

mikestew 2y ago
But that doesn't do any good for existing 2G devices, does it?
alanfranz 2y ago
But you need to upgrade tons of existing devices. That’s the issue.