Model : Samsung Galaxy S2 (GT-i9100)
Processor : 1.2Ghz Dual Core ARM-Cortex A9 Samsung Exynos 4210
Screen Size : 4.3" Super Amoled Plus
Operating System : 2.3.4 (Gingerbread)
Weight : 116g
GPU : ARM Mali 400-MP
Ram : 1GB
Storage : 16GB Built In & Expandable 16GB/32GB SD Slot
Battery : 1650mAh
Camera Back : 8MP with auto focus & flash (Full HD playback & recording)
Camera Front : 2MP
Bluetooth : Yes ; 3.0
Wireless : Yes ; a/b/g/n
3G : Yes ; HSPA+ & HSUPA
Overall : This smartphone is very nice in term of speed, size, display & quality..