5G Bands Guide 2025 — What to Check Before Buying

Not all 5G is equal. mmWave 5G reaches 4Gbps but covers only dense urban areas within a few hundred feet of towers. Sub-6GHz 5G is slower (200-1000Mbps) but covers rural areas and most cities. Most flagships support both. Budget phones often only support sub-6GHz. This guide shows you what bands to check for T-Mobile, Verizon, and AT&T compatibility.

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