Although 3G and 5G use different technologies to send and receive data, they operate at some of the same frequencies. But according to AT&T, they can’t coexist on those frequencies — the airwaves assigned to 3G customers cannot also be used for 5G customers .
Read moreCan you use a 5G phone on 4G?
5G isn’t replacing 4G any time soon. In fact, they will coexist and work together. 5G capable phones can actually use both 4G and 5G technology .
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