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I bought an iphone 13 from Spectrum. They sent me a sim card with it and said it was a 5G sim and needed to be used with the phone. I was already with Spectrum, had an iphone 6, I just took the sim from that phone and put it into the 13. It works. Do I really need to use the "5G sim" they supplied?
iPhone 13 Pro, iOS 15
Unless the SIM card they provided you for your iPhone 6 was enabled for 5G service, you will not have to use the new SIM (and you can keep it as a spare.) Otherwise, it may work, but you will not be able to access 5G service without using the new card.
There is no such thing as a 5G SIM card.
I am using the same sim I have had for years with T-mobile.
I have 5G access without issues.
If your carrier says you need to use the new SIM card, you best use it I guess.
SIM cards specifically for 5G include new authentication methods and security features when using a 5G connection. So if you have a 5G network available and want your cellular voice and data connection to use the new security protocols and features that are part of the 5G specifications, then you do need a new SIM.
This is a nicely complete answer as to why Spectrum sent a 5G sim with the phone and said to use it. Many thanks.
specific 5g sim card
