Android App Bundle & Google Play Dynamic Delivery — Introducing the new app model for Android. Dramatically reduce app size with a new publishing format—the Android App Bundle. In Android Studio, you'll now build an app bundle that contains everything your app needs for any device—all the languages, every device screen size, every hardware architecture. Then, when a user downloads your app, Google Play's new Dynamic Delivery will only deliver the code and resources matching the user's device. People see a smaller install size on the Play Store, can download your app more quickly, and save space on their devices.
(Left) An example of all resources being delivered to a device via a legacy APK.
(Right) An example of Dynamic Delivery serving just what’s needed to a device.