One of the more important features for today’s smartphones is the dual-SIM feature. This very important phone specification is quite needed due to the limited capacities of one SIM card to store contact information to your device. With a dual-SIM, you basically double the number of contacts you can give to your phone. While most devices already include this feature on their products, Samsung gives a little more thought into this and apply them into their Duos line.
Samsung Duos was released in 2012 as a separate phone-line from their more premium smartphone series. All the phones under the Duos have dual-SIM capabilities, and can come in a variety of devices, ranging from high-end to entry-level devices. The smartphone series only focuses on expanding the contact lists and other capabilities of a mobile device with two SIMs installed to it. If you want to try out the more expansive version of the premium device, then you can try out the Galaxy Duos series of phones.