Most novice Android users might not be familiar with ART that got introduced in the latest Android version 4.4 Kit Kat which is meant to give a significant improvement on the Android phone or tablet's performance, battery life as well as memory optimization.

Keep in mind that this feature is still in an experimental stage and that it could break some of your applications that are installed, leading to them not being able to start up. Also keep in mind that at any time you can revert back to your old runtime and everything will be back to normal.

What is Android ART?

ART is the latest Android runtime that Google introduced experimentally in Android 4.4 Kit Kat. It is the new runtime that will soon replace the old runtime called Dalvik which all Android devices are currently using. It basically executes application instructions in a more efficent way by processing application instructions before they're needed so things run more smoothly for the user.

The only requirement to enable ART is to be running Android 4.4 Kit Kat. Examples are the Google Nexus 5, Motorola Moto G, Moto X, etc. You also need to have Developer options enabled in order to access this setting. Instructions for that can be found below.

Enabling ART on Android 4.4 Kit Kat

  1. You will first need to enable the Developer options which are hidden. To unhide them, head into Settings > About Phone and where you see Build Number, begin tapping until it says that you are a developer.
  2. Now go back to your Settings menu and right above About phone you should see Developer options
  3. Now go to Developer options and scroll down until you see Select Runtime
  4. By default you have Dalvik chosen, now choose use ART and tap on OK.
  5. At this point your device will reboot and you should now be using the new ART runtime.
Please note that the first boot after applying this change might take some time, so be patient. Once your phone boots up for the first time, the next boot time will be normal, and possibly even faster than when you are using the Dalvik runtime.

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