diff --git a/Libraries/Storage/AsyncStorage.js b/Libraries/Storage/AsyncStorage.js
index df570bc11..48b9f59bc 100644
--- a/Libraries/Storage/AsyncStorage.js
+++ b/Libraries/Storage/AsyncStorage.js
@@ -28,8 +28,10 @@ var RCTAsyncStorage = RCTAsyncRocksDBStorage || RCTAsyncSQLiteStorage || RCTAsyn
  * of AsyncStorage directly for anything more than light usage since it
  * operates globally.
  *
- * This JS code is a simple facade over the native iOS implementation to provide
- * a clear JS API, real Error objects, and simple non-multi functions. Each
+ * On iOS, AsyncStorage is backed by native code that stores small values in a serialized
+ * dictionary and larger values in separate files. On Android, AsyncStorage will use either
+ * RocksDB or SQLite based on what is available. This JS code is a simple facade that
+ * provides a clear JS API, real Error objects, and simple non-multi functions. Each
  * method returns a `Promise` object.
  */
 var AsyncStorage = {