HandlerThread vs IntentService

So, after checking the source code of both the HandlerThread and the IntentService I found the following:

• IntentServie has a HandlerThread instance inside (this is the separated working thread)
• IntentService calling selfStop() after onHandleIntent() method executed, to shut down itself (since it's extending the service class).
• IntentService is extended from Service class itself, so if you want you can start it in a separated process if you wish.

IntentService onCreate() method, creating the working thread:

   @Override
public void onCreate() {
    super.onCreate();
    HandlerThread thread = new HandlerThread("IntentService[" + mName + "]");
    thread.start();
    mServiceLooper = thread.getLooper();
    mServiceHandler = new ServiceHandler(mServiceLooper);
}

IntentService own handler, needed to kill the service after the work is done:

    private final class ServiceHandler extends Handler {
    public ServiceHandler(Looper looper) {
        super(looper);
    }

    @Override
    public void handleMessage(Message msg) {
        onHandleIntent((Intent)msg.obj);
        stopSelf(msg.arg1);
    }
}

In my reading IntentService is the combination of HandlerThread and Service.

Any further answers and solutions are more than welcome !