diff --git a/app/src/main/assets/pebble_sd.pbw b/app/src/main/assets/pebble_sd.pbw
new file mode 100644
index 0000000..4ab17a0
Binary files /dev/null and b/app/src/main/assets/pebble_sd.pbw differ
diff --git a/app/src/main/java/uk/org/openseizuredetector/SdDataSource.java b/app/src/main/java/uk/org/openseizuredetector/SdDataSource.java
index ce62048..ebeeba2 100644
--- a/app/src/main/java/uk/org/openseizuredetector/SdDataSource.java
+++ b/app/src/main/java/uk/org/openseizuredetector/SdDataSource.java
@@ -73,6 +73,11 @@ public abstract class SdDataSource {
         Log.v(TAG, "stop()");
     }
 
+    /**
+     * Install the watch app on the watch.
+     */
+    public void installWatchApp() { Log.v(TAG,"installWatchApp"); }
+
     /**
      * Display a Toast message on screen.
      * @param msg - message to display.
diff --git a/app/src/main/java/uk/org/openseizuredetector/SdDataSourcePebble.java b/app/src/main/java/uk/org/openseizuredetector/SdDataSourcePebble.java
index e4fce0f..3fd64f2 100644
--- a/app/src/main/java/uk/org/openseizuredetector/SdDataSourcePebble.java
+++ b/app/src/main/java/uk/org/openseizuredetector/SdDataSourcePebble.java
@@ -24,7 +24,9 @@
 package uk.org.openseizuredetector;
 
 import android.content.Context;
+import android.content.Intent;
 import android.content.SharedPreferences;
+import android.net.Uri;
 import android.os.Handler;
 import android.os.Looper;
 import android.preference.PreferenceManager;
@@ -36,6 +38,11 @@ import com.getpebble.android.kit.Constants;
 import com.getpebble.android.kit.PebbleKit;
 import com.getpebble.android.kit.util.PebbleDictionary;
 
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.nio.IntBuffer;
@@ -576,6 +583,39 @@ public class SdDataSourcePebble extends SdDataSource {
         }
     }
 
+    /**
+     * Install the wach app that is bundled in the 'assets' folder of this
+     * phone app.
+     * from https://github.com/pebble-examples/pebblekit-android-example/blob/master/android/Eclipse/src/com/getpebble/pebblekitexample/MainActivity.java#L148
+     */
+    @Override
+    public void installWatchApp() {
+        Log.v(TAG, "SdDataSourcePebble.installWatchApp()");
+        final String WATCHAPP_FILENAME = "pebble_sd.pbw";
+
+        try {
+            // Read .pbw from assets/
+            Intent intent = new Intent(Intent.ACTION_VIEW);
+            File file = new File(mContext.getExternalFilesDir(null), WATCHAPP_FILENAME);
+            InputStream is = mContext.getResources().getAssets().open(WATCHAPP_FILENAME);
+            OutputStream os = new FileOutputStream(file);
+            byte[] pbw = new byte[is.available()];
+            is.read(pbw);
+            os.write(pbw);
+            is.close();
+            os.close();
+
+            // Install via Pebble Android app
+            intent.setDataAndType(Uri.fromFile(file), "application/pbw");
+            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            mContext.startActivity(intent);
+        } catch (IOException e) {
+            Toast.makeText(mContext, "App install failed: " + e.getLocalizedMessage(), Toast.LENGTH_LONG).show();
+        }
+
+    }
+
+
 
 
 
diff --git a/app/src/main/java/uk/org/openseizuredetector/StartupActivity.java b/app/src/main/java/uk/org/openseizuredetector/StartupActivity.java
index 05f5657..7278f0b 100644
--- a/app/src/main/java/uk/org/openseizuredetector/StartupActivity.java
+++ b/app/src/main/java/uk/org/openseizuredetector/StartupActivity.java
@@ -81,7 +81,6 @@ public class StartupActivity extends Activity {
         PreferenceManager.setDefaultValues(this, R.xml.camera_prefs, true);
         PreferenceManager.setDefaultValues(this, R.xml.general_prefs, true);
         PreferenceManager.setDefaultValues(this, R.xml.network_datasource_prefs, true);
-        PreferenceManager.setDefaultValues(this, R.xml.pebble_datasource_prefs, false);
 
         Button b = (Button)findViewById(R.id.settingsButton);
         b.setOnClickListener(new View.OnClickListener() {
@@ -105,7 +104,9 @@ public class StartupActivity extends Activity {
             @Override
             public void onClick(View view) {
                 Log.v(TAG, "pebble button clicked");
-                mUtil.startPebbleApp();
+                mUtil.showToast("pebble button clicked");
+                //mUtil.startPebbleApp();
+                mConnection.mSdServer.mSdDataSource.installWatchApp();
             }
         });