The Galaxy S II has a 1.2 GHz dual-core " Exynos" system on a chip (SoC) processor, 1 GB of RAM, a 10.8 cm (4.3 in) WVGA Super AMOLED Plus screen display and an 8- megapixel camera with flash and 1080p full high definition video recording. It was one of the slimmest smartphones of the time, mostly 8.49 mm thick, except for two small bulges which take the maximum thickness of the phone to 9.91 mm. Samsung unveiled the S II on 13 February 2011 at the Mobile World Congress (MWC) in Barcelona. The S II was launched with Android 2.3 "Gingerbread", with updates to Android 4.1.2 "Jelly Bean". It has additional software features, expanded hardware, and a redesigned physique compared to its predecessor, the Samsung Galaxy S. The Samsung Galaxy S II is a touchscreen-enabled, slate-format Android smartphone designed, developed, and marketed by Samsung Electronics, as the second smartphone of the Samsung Galaxy S series. Online services Google Play, GALAXY Apps ( Social Hub, Readers Hub and Game Hub).Wi-Fi hotspot, AllShare, Exchange ActiveSync, Damage-resistant Gorilla Glass, Polaris™ Office.Unofficial: Android 12.1 "Snow Cone" via LineageOS 19.1 by rINanDO