Samsung Galaxy Duos
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Samsung Galaxy Duos (stylised as SAMSUNG GALAXY DUOS) is a series of Android-based dual SIM mobile devices designed, manufactured, and marketed by Samsung Electronics as Duos.
The Samsung Galaxy offers several different ranges of devices, including Smartphones, Phablets, and Tablets. Although widely known by marketing names, the underlying model ranges are best understood by looking at the model number. Since August 2011, all the smartphones of the Galaxy series are categorised in the following way (where x = I, N or S and nnn = model number):[1][2]
- GT-x5nnn – Budget ("Realistic ") devices
- GT-x7nnn – Mid-range ("Slim") devices
- GT-x8nnn – Upper mid-range ("Loyal") devices
- GT-x9nnn – High end ("Clever ") devices
- GT-xnnn0 – mainstream model
- GT-xnnn2 – Dual SIM "Duos" model
- GT-xnnn5 – 3G/LTE model
Within the Smartphone ranges, Samsung often produces a Dual SIM variant, but these are not often widely available in many markets, where retail dominance by Mobile Network Operators (MNO) who operate a SIM-locked business model naturally deprecates Dual SIM devices.
