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 .
Read moreWill 5G phones work on 3G network?
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 .
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