It means better coverage, better speeds, and better reliability . Category 9 and 12 is up to 4.5~6 times faster than the first generation of LTE (Category 3, short for Cat3).
It means better coverage, better speeds, and better reliability . Category 9 and 12 is up to 4.5~6 times faster than the first generation of LTE (Category 3, short for Cat3).