Compare NB-IoT with LTE-M

reference from
https://www.i-scoop.eu/internet-of-things-guide/lpwan/nb-iot-narrowband-iot/

LPWAN

DescriptionNB-IoT
(Cat-NB1)
LTE-M
(eMTC, Cat-M1)
LoRa
LoRaWAN
Sigfox
GPRSLTE
QoS (Quality of Service)LowHigher
Cellular TechnologyYes (using existing cellular network)Yes (using existing cellular network)No
(non-cellular LPWAN)
For mobile applicationNo (for static only)Yes (cellular switching)No
Latency1.6 to 10 sec100 to 150ms
In-door applicationBetterGood
CommunicationHalf-duplex Half-duplex
Devices talk less oftenDevices talk less oftenDevices talk more often
Good if only a few devices is expected to be used in the remote area.same as NB-IoTGood if many devices are deployed in area the same area nearby.
CostVery Cheap
$1/month
CheapCheapExpensive
Brand New methodLight version of LTE.

Telecom Connectivity Offer

Some of the offer from Mobile Network Operators (MNOs).

International Sim Card for NB-IoT connectivity

Evidence suggesting that NB-IoT is a method of using existing Telecom cellular network for IoT devices

Company supplying NB-IoT module

Other lists of manufacturer brands for NB-IoT modules can be found here,
https://www.gsma.com/iot/mobile-iot-modules/

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