Mobile phone networks work using signals on specific frequency bands and a phone must support those bands in order to work with the network. Dual-band refers to the phones ability to work with two different bands. It is important to specify which bands exactly. Networks in different geographical locations work on different bands – GSM networks in the Americas use the 850 MHz and 1900 MHz bands while networks in Europe, Brazil, Asia and Africa use the 900/1800 MHz bands. For example an 900/1800 dual-band phone won’t work in the US and an 850/1900 phone won’t work in Europe. A 900/1900 phone should work on at least one network in most countries around the world.
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Samsung Gear S2
fhallieNov 10, 2015
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Apple Watch
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Moto 360 Sport Smartwatch
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Nexus 9 Discontinued by Google and HTC
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ZUK Z2 gets Certified by TENAA
