- Performance – This is the main, biggest one! Android 4.4 will run smoothly on handsets with just 512MB of RAM. That’s absolutely right. KitKat will theoretically run on some of the old handsets that came out almost three years ago from now! KitKat streamlines on every major component to reduce the memory use and introduces new APIs and some new tools to help its developers create more memory-efficient applications. OEM is building the next generation of Android devices which can take advantage of some targeted recommendations and options to run on Android 4.4 efficiently, even on the low-memory devices. The Dalvik JIT code cache tuning, the kernel same page merging (KSM) or even swap to the zRAM, and some other optimizations can help manage memory.
- Faster Multitasking – Android 4.4 KitKat features a raft of back-end tweaks which are aimed at improving the overall performance and speed with which user’s handset computes tasks. Google Inc. has further optimized the memory inside Android 4.4 and it can now run on just 512MB of RAM and its touch screen response is also better now! Android was very decent at running multiple apps before too, to say, Play Store and the Chrome and the email also. With KitKat, it'll be even better.
- Smart Caller ID – Inside the Android OS, users can now sync their contacts list with a myriad of social networks and some account types including: the Facebook, Twitter, Google, LinkedIn, Gmail, and Google+. This sync facility pulls the user’s contacts' details across and also links their profile picture to their name in the user’s contacts app, thus giving the user a tidy, useful contacts list complete with the profile pictures. The new KitKat from Google takes things further. When the user receive a call from an unknown number, like a business or from a pizza delivery guy, for instance KitKat is going to scan Google Maps for an appropriate image for him and, if it can find one, it will use it for the caller ID. This is for giving the user a better idea of who is calling him.
Other than these, there are some more cool features about Android 4.4 KitKat that are really going to mean a lot for the Android lovers!