How do I find the minimum SDK version?

You can get the SDK packages to build your app with Android 8.0 (API level 26) using the latest version of Android Studio (Android Studio 3.0+ is recommended).

Generally, companies target a minimum version of KitKat, or SDK 19 , for new endeavors. For personal projects, we usually choose Lollipop, or SDK 21, as it brings a number of improvements to the table, such as improved build times.

Go to: File > Project Structure , then under modules choose your module (that probably will be app , then under the tab flavors you can see minimum sdk and target sdk.