Things You Must Know Samsung Galaxy S II Duos Support CDMA/GSM Samsung has released the latest variant of the Samsung Galaxy S II Duos. Known as the Samsung Galaxy S II Duos, the latest Android smartphone has support for dual nertwork CDMA and GSM. Samsung Galaxy S II Duos use display 4.52 inch AMOLED WVGA Super Plus screen with dual-core processor 1.2 GHz. Although Samsung has not provided details of the chipset that is used but the clock speed of the CPU indicates the Samsung Galaxy S II Duos will be run by Exynos chip modification. Samsung Galaxy S II Duos with dual-SIM Samsung released for the Chinese market and features an 8 MP camera on the back with 1080p video. At the front there is a 2 MP camera for video...