Assuming it’s an Android phone, tap on Settings >> Network & internet >> Mobile Network >> Preferred Network type . You should see all the Mobile Network technologies supported such as 2G, 3G, 4G and 5G. If 5G is listed, then your phone supports it.
Read moreHow do you know your Iphone is using 5G?
Go to Settings > Cellular > Cellular Data Options. If you see this screen, your device has 5G activated . If you don’t see this screen, contact your carrier to confirm that your plan supports 5G.
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