Samsung Galaxy S3, the successor to Galaxy S2, has a 4.8″ display capable of playing videos at 720p. It is powered by a quad-core Exynos 4412 processor, with each core clocked at a maximum 1.4 GHz. It has 1GB of RAM. It is available in 16/32/64 GB storage options.
Samsung Galaxy S3 originally ran on Android 4.0.4. It is upgradable to Android 4.3. Galaxy S3 users can also run on Android 4.4 ROM thanks to the OmniROM. This ROM is still in the alpha stages so it might have some bugs. But it is stable enough for day to day use. Follow the instructions given below to install it on Galaxy S3 I9300.