5G
5G is the fifth-generation cellular standard, with three flavors that perform very differently: low-band (broad, slow), mid-band (the sweet spot), and mmWave (very fast, very short range).
5G isn't one technology — it's a family of three. Low-band 5G covers wide areas like LTE but adds little speed. Mid-band 5G (the sweet spot) is what most users mean when they talk about "fast 5G." mmWave is the very-high-frequency variant that delivers gigabit speeds over a few city blocks.
The three flavors
- Low-band (n5, n12, n71): 600–800 MHz. Excellent reach (miles), modest speeds (50–150 Mbps). T-Mobile calls this "Extended Range 5G."
- Mid-band (n41, n77, n78): 2.5–3.7 GHz. Reach of about a mile, speeds of 200–700 Mbps. T-Mobile's n41 (2.5 GHz) and Verizon's n77 C-band are the workhorses here.
- mmWave (n258, n260, n261): 24–40 GHz. Reach of one block, speeds of 1–4 Gbps. Mostly deployed in dense urban cores, stadiums, and airports.
What you actually see on your phone
Carriers slap different marketing labels on these tiers. T-Mobile calls mid-band 5G UC (Ultra Capacity) and reserves "5G" alone for low-band. Verizon calls mmWave + C-band 5G UW (Ultra Wideband). AT&T calls mmWave 5G+. The icons all mean different things across carriers, which is why coverage maps matter more than icon claims.
Why your "5G" sometimes feels slower than LTE
If your phone shows the 5G icon but speeds feel slower than LTE, you're probably on low-band 5G in an area without mid-band coverage. The standard supports faster radios, but if the tower only offers low-band 5G in your area, that's what you get. The fix is to pick a carrier with mid-band deployment at your address — see our coverage maps.