diff --git a/health/2.1/default/service.cpp b/health/2.1/default/service.cpp
new file mode 100644
index 0000000..f8334c5
--- /dev/null
+++ b/health/2.1/default/service.cpp
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "android.hardware.health@2.1-service"
+
+#include <android-base/logging.h>
+#include <android/hardware/health/2.1/IHealth.h>
+#include <health2impl/BinderHealth.h>
+
+using ::android::sp;
+using ::android::hardware::health::V2_1::IHealth;
+using ::android::hardware::health::V2_1::implementation::BinderHealth;
+using IHealth_2_0 = ::android::hardware::health::V2_0::IHealth;
+
+static constexpr const char* gInstanceName = "default";
+
+int main(int /* argc */, char* /* argv */[]) {
+    sp<IHealth> passthrough =
+            IHealth::castFrom(IHealth_2_0::getService(gInstanceName, true /* getStub */));
+    CHECK(passthrough != nullptr)
+            << "Cannot find passthrough implementation of health 2.1 HAL for instance "
+            << gInstanceName;
+    sp<BinderHealth> binder = new BinderHealth(gInstanceName, passthrough);
+    return binder->StartLoop();
+}