If you see a “5G UW” with a Verizon phone or “5G+” on an iPhone connecting to AT&T’s network, that means you’re connected to the carrier’s higher-frequency mmWave version of 5G . These bands are faster than standard 5G — but that speed comes at the cost of having a reduced range.
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5G+ indicates you’re connected to a mmWave 5G NR tower, short-range radios that deliver breakneck speeds . Performing a speed test will reveal download speeds of 1–3 Gbps. For context, 4G LTE averages around 0.025 Gbps on most US carriers.5 Haz 2020
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