Hello, I already know that 5G have three bandwidth low, mid and high, each with their frequencies and speeds. I also know that a WiFi routed could have either 2.4Ghz or 5Ghz or both. Yet, I still do not understand the following: Can I use a 5G SIM on a 4G WiFi router? Or should I change my router to a 5G router? If yes, or no. Is it about the frequency or the speed? As far as I know, 5G have multiple frequencies under 1Ghz all the way up to 95Ghz or may be more.
Thank you.
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