diff --git a/src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderController.java b/src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderController.java
index bc5aa470eba..4c30baa5b27 100644
--- a/src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderController.java
+++ b/src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderController.java
@@ -289,10 +289,15 @@ public class AdvancedBluetoothDetailsHeaderController extends BasePreferenceCont
         } else {
             if (deviceId == MAIN_DEVICE_ID) {
                 linearLayout.setVisibility(View.VISIBLE);
-                batterySummaryView.setText(com.android.settings.Utils.formatPercentage(
-                        bluetoothDevice.getBatteryLevel()));
-                batterySummaryView.setVisibility(View.VISIBLE);
                 linearLayout.findViewById(R.id.bt_battery_icon).setVisibility(View.GONE);
+                int level = bluetoothDevice.getBatteryLevel();
+                if (level != BluetoothDevice.BATTERY_LEVEL_UNKNOWN
+                        && level != BluetoothDevice.BATTERY_LEVEL_BLUETOOTH_OFF) {
+                    batterySummaryView.setText(com.android.settings.Utils.formatPercentage(level));
+                    batterySummaryView.setVisibility(View.VISIBLE);
+                } else {
+                    batterySummaryView.setVisibility(View.GONE);
+                }
             } else {
                 // Hide it if it doesn't have battery information
                 linearLayout.setVisibility(View.GONE);
diff --git a/tests/robotests/src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderControllerTest.java b/tests/robotests/src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderControllerTest.java
index 8e03d681f33..215cddb43aa 100644
--- a/tests/robotests/src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderControllerTest.java
+++ b/tests/robotests/src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderControllerTest.java
@@ -41,6 +41,7 @@ import com.android.settings.core.SettingsUIDeviceConfig;
 import com.android.settings.fuelgauge.BatteryMeterView;
 import com.android.settings.testutils.shadow.ShadowDeviceConfig;
 import com.android.settings.testutils.shadow.ShadowEntityHeaderController;
+import com.android.settingslib.bluetooth.BluetoothUtils;
 import com.android.settingslib.bluetooth.CachedBluetoothDevice;
 import com.android.settingslib.utils.StringUtil;
 import com.android.settingslib.widget.LayoutPreference;
@@ -135,6 +136,32 @@ public class AdvancedBluetoothDetailsHeaderControllerTest {
         assertBatteryLevel(mLayoutPreference.findViewById(R.id.layout_middle), BATTERY_LEVEL_MAIN);
     }
 
+    @Test
+    public void refresh_connectedWatch_unknownBatteryLevel_shouldNotShowBatteryLevel() {
+        when(mBluetoothDevice.getMetadata(
+                BluetoothDevice.METADATA_DEVICE_TYPE)).thenReturn(
+                BluetoothDevice.DEVICE_TYPE_WATCH.getBytes());
+        when(mBluetoothDevice.getMetadata(
+                BluetoothDevice.METADATA_IS_UNTETHERED_HEADSET)).thenReturn(
+                String.valueOf(false).getBytes());
+        when(mBluetoothDevice.getMetadata(
+                BluetoothDevice.METADATA_MAIN_BATTERY)).thenReturn(
+                String.valueOf(BluetoothUtils.META_INT_ERROR).getBytes());
+        when(mBluetoothDevice.getBatteryLevel()).thenReturn(BluetoothDevice.BATTERY_LEVEL_UNKNOWN);
+        when(mCachedDevice.isConnected()).thenReturn(true);
+
+        mController.refresh();
+
+        assertThat(mLayoutPreference.findViewById(R.id.layout_left).getVisibility()).isEqualTo(
+                View.GONE);
+        assertThat(mLayoutPreference.findViewById(R.id.layout_right).getVisibility()).isEqualTo(
+                View.GONE);
+        assertThat(mLayoutPreference.findViewById(R.id.layout_middle).getVisibility()).isEqualTo(
+                View.VISIBLE);
+        assertThat(mLayoutPreference.findViewById(R.id.layout_middle)
+                .requireViewById(R.id.bt_battery_summary).getVisibility()).isEqualTo(View.GONE);
+    }
+
     @Test
     public void refresh_connectedUntetheredHeadset_behaveAsExpected() {
         when(mBluetoothDevice.getMetadata(