diff --git a/README.md b/README.md
index d8f52d2..e3756f2 100644
--- a/README.md
+++ b/README.md
@@ -87,6 +87,7 @@ Not all fields are supported on all versions of Android. If unsupported, the cor
 | Key | Value | Notes |
 |-|-|-|
 | `defaultLanguage`| en, nl, ... |
+| `sdkVersion` | int | 29 for Android 10. [See this list](https://source.android.com/setup/start/build-numbers)
 
 
 ## Development
diff --git a/q42stats/src/main/java/com/q42/q42stats/library/collector/SystemCollector.kt b/q42stats/src/main/java/com/q42/q42stats/library/collector/SystemCollector.kt
index 9c06c4c..19fc7ce 100644
--- a/q42stats/src/main/java/com/q42/q42stats/library/collector/SystemCollector.kt
+++ b/q42stats/src/main/java/com/q42/q42stats/library/collector/SystemCollector.kt
@@ -8,5 +8,6 @@ internal object SystemCollector {
 
     fun collect() = mutableMapOf<String, Serializable>().apply {
         put("defaultLanguage", Locale.getDefault().language) // language code like en or nl
+        put("sdkVersion", android.os.Build.VERSION.SDK_INT) // eg 16 for Android 4.1 Jelly Bean
     }
 }
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