What is the difference between a dual band (3G) and a five band (4G LTE) signal booster?

Dual and five band signal boosters are different based on the frequencies and networks that they boost. We'll cover each in depth here:

Five Band (4G LTE) Signal Boosters

With the advent of high speed data over 4G LTE, it was necessary to use additional frequency bands (ranges), as there was not enough room in the existing two frequency bands to handle the additional traffic. Three additional bands were added, for a total of five bands (700, 850, 1900, and 1700/2100 MHz) being used by the major carriers for their different 2G, 3G, 4G and 4G LTE networks. 

In order to ensure that every network (2G, 3G, 4G LTE) for every carrier was being boosted by the same signal booster, five band boosters were created to amplify all five frequency bands simultaneously. 

A five band signal booster is the only recommended type of booster to ensure you can boost all current networks on all carriers, and any future network that uses any of the five main frequency bands.

Dual Band (3G) Signal Boosters

Prior to the release of the current 4G LTE high speed data networks, cell carriers provided voice calls and slower 3G data over only two frequency bands, 850 and 1900 MHz. All dual band signal boosters will amplify these two frequencies, so they will work for voice calls and 3G data on all of the major cellular carriers in North America. Dual band boosters are no longer manufactured and should only be used for legacy applications.

Please Note: A dual band signal booster will NOT boost 4G LTE for any carrier, so high speed data, Voice over LTE (VoLTE), and any future technologies using any band besides 850 and 1900 MHZ will not be boosted by a dual band signal booster.

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