Read the Understanding Android API Levels link below.
Visual Studio for Windows:
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Visual Studio for Mac:
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Target Framework – Specifies which framework to use in building your application. This API level is used at compile time by Xamarin.Android.
Minimum Android Version – Specifies the oldest Android version that you want your app to support. This API level is used at run time by Android.
Target Android Version – Specifies the version of Android that your app is intended to run on. This API level is used at run time by Android.
Manifest Entries:
Visual Studio for Windows:
Visual Studio for Mac:
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