Which T-Mobile band is the fastest?

The company’s unique combination of low-, mid- and high-band spectrum makes T-Mobile the only company with the resources to create a transformative network capable of driving innovation across the country, providing people with a 5G network nobody else can match.

4G LTE

High-band spectrum may give you blazing fast speeds and lots of capacity —but only if you are close to the cell site. Low-band may provide excellent coverage but the network performance may only be a small step up from 4G.