Sony Xperia Z was released in 2013. It has a 5″ screen with a high pixel density of 441 ppi. It is powered by a 1.5 GHz quad-core Qualcomm Snapdragon S4 Pro processor, Adreno 320 GPU. Xperia Z has 2 GB of RAM, 16 GB of internal storage, which is expandable up to 32GB. It comes with a 13.1MP primary camera. Along with these impressive specs, Xperia Z was one of the first devices to have water and dust resistant capabilities.
Sony Xperia Z has not yet received the Android 4.4.2 update. However you can manually update to KitKat via the custom ROMs. A nightly build of AOKP ROM running on Android 4.4.2 is available for Xperia Z. Besides the improved performance, this ROM will also contain less bloatware i.e the preinstalled apps of Sony will absent. Follow the steps given below to install it on the Xperia Z.