Need the best quectel module which has FOTA feature

Would like to know the one quectel module LTE-CAT1 4g module which supports MQTTs for data transfer

  • Which supports CoAP
  • Which supports LwM2M for FOTA application?
  • Which supports HTPPS?
    All the above said protocols needs to be supported for us in developing the product
  • If UART is used then is there any separate stack and example suit?
  • At a time how many tcp/udp ports or connections can it support as we require 4 to 5 ports as one for lwm2m,one for mqtts…etc

You can choose QUECTEL’s EC21 or EG21