The Galaxy S III is the successor to Samsung’s best-selling Galaxy S II. It has a bigger, 4.8″ 720p display. It also is the first device to have a quad-core Exynos 4412 processor, with each core clocked at a maximum 1.4 GHz. It packs NFC, wireless charging capability, and the wireless radios. It ships with Samsung’s Nature UX interface.
Galaxy S3 was released more than 2 years ago so it is not expected that this device will get official KitKat support. However its LTE version got the Android 4.4.4 KitKat update from Samsung and XDA developers have ported that update to the Galaxy S3. It will have all KitKat features and also Samsung’s Touchwiz interface. Follow the instructions given below to install it on your device.