ConnectivitySony's latest Xperia C comes with the wide connectivity options like 3G HSPA+, Wi-Fi 802.11 b/g/n, DLNA, Bluetooth 4.0, GPS, MHL and on top of that it also supports dual SIM (GSM + GSM) with dual standby mode.
Connectivity options for Galaxy Grand Duos include Wi-Fi, Bluetooth, microUSB, 3.5mm jack and GPS.