diff --git a/homeassistant/components/harmony/const.py b/homeassistant/components/harmony/const.py
index ee4a454847e..d7b4d8248ed 100644
--- a/homeassistant/components/harmony/const.py
+++ b/homeassistant/components/harmony/const.py
@@ -6,9 +6,7 @@ PLATFORMS = ["remote", "switch"]
 UNIQUE_ID = "unique_id"
 ACTIVITY_POWER_OFF = "PowerOff"
 HARMONY_OPTIONS_UPDATE = "harmony_options_update"
-ATTR_ACTIVITY_LIST = "activity_list"
 ATTR_DEVICES_LIST = "devices_list"
 ATTR_LAST_ACTIVITY = "last_activity"
-ATTR_CURRENT_ACTIVITY = "current_activity"
 ATTR_ACTIVITY_STARTING = "activity_starting"
 PREVIOUS_ACTIVE_ACTIVITY = "Previous Active Activity"
diff --git a/homeassistant/components/harmony/remote.py b/homeassistant/components/harmony/remote.py
index 9b3d53c21fa..55af62e6d39 100644
--- a/homeassistant/components/harmony/remote.py
+++ b/homeassistant/components/harmony/remote.py
@@ -12,6 +12,7 @@ from homeassistant.components.remote import (
     ATTR_HOLD_SECS,
     ATTR_NUM_REPEATS,
     DEFAULT_DELAY_SECS,
+    SUPPORT_ACTIVITY,
 )
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import ATTR_ENTITY_ID
@@ -24,9 +25,7 @@ from homeassistant.helpers.restore_state import RestoreEntity
 from .connection_state import ConnectionStateMixin
 from .const import (
     ACTIVITY_POWER_OFF,
-    ATTR_ACTIVITY_LIST,
     ATTR_ACTIVITY_STARTING,
-    ATTR_CURRENT_ACTIVITY,
     ATTR_DEVICES_LIST,
     ATTR_LAST_ACTIVITY,
     DOMAIN,
@@ -100,6 +99,11 @@ class HarmonyRemote(ConnectionStateMixin, remote.RemoteEntity, RestoreEntity):
         self._last_activity = None
         self._config_path = out_path
 
+    @property
+    def supported_features(self):
+        """Supported features for the remote."""
+        return SUPPORT_ACTIVITY
+
     async def _async_update_options(self, data):
         """Change options when the options flow does."""
         if ATTR_DELAY_SECS in data:
@@ -178,13 +182,21 @@ class HarmonyRemote(ConnectionStateMixin, remote.RemoteEntity, RestoreEntity):
         """Return the fact that we should not be polled."""
         return False
 
+    @property
+    def current_activity(self):
+        """Return the current activity."""
+        return self._current_activity
+
+    @property
+    def activity_list(self):
+        """Return the available activities."""
+        return self._data.activity_names
+
     @property
     def device_state_attributes(self):
         """Add platform specific attributes."""
         return {
             ATTR_ACTIVITY_STARTING: self._activity_starting,
-            ATTR_CURRENT_ACTIVITY: self._current_activity,
-            ATTR_ACTIVITY_LIST: self._data.activity_names,
             ATTR_DEVICES_LIST: self._data.device_names,
             ATTR_LAST_ACTIVITY: self._last_activity,
         }
diff --git a/homeassistant/components/remote/__init__.py b/homeassistant/components/remote/__init__.py
index b3b84669ed1..720f7c5ff16 100644
--- a/homeassistant/components/remote/__init__.py
+++ b/homeassistant/components/remote/__init__.py
@@ -2,7 +2,7 @@
 from datetime import timedelta
 import functools as ft
 import logging
-from typing import Any, Iterable, cast
+from typing import Any, Dict, Iterable, List, Optional, cast
 
 import voluptuous as vol
 
@@ -30,6 +30,8 @@ from homeassistant.loader import bind_hass
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ACTIVITY = "activity"
+ATTR_ACTIVITY_LIST = "activity_list"
+ATTR_CURRENT_ACTIVITY = "current_activity"
 ATTR_COMMAND_TYPE = "command_type"
 ATTR_DEVICE = "device"
 ATTR_NUM_REPEATS = "num_repeats"
@@ -56,6 +58,7 @@ DEFAULT_HOLD_SECS = 0
 
 SUPPORT_LEARN_COMMAND = 1
 SUPPORT_DELETE_COMMAND = 2
+SUPPORT_ACTIVITY = 4
 
 REMOTE_SERVICE_ACTIVITY_SCHEMA = make_entity_service_schema(
     {vol.Optional(ATTR_ACTIVITY): cv.string}
@@ -143,6 +146,27 @@ class RemoteEntity(ToggleEntity):
         """Flag supported features."""
         return 0
 
+    @property
+    def current_activity(self) -> Optional[str]:
+        """Active activity."""
+        return None
+
+    @property
+    def activity_list(self) -> Optional[List[str]]:
+        """List of available activities."""
+        return None
+
+    @property
+    def state_attributes(self) -> Optional[Dict[str, Any]]:
+        """Return optional state attributes."""
+        if not self.supported_features & SUPPORT_ACTIVITY:
+            return None
+
+        return {
+            ATTR_ACTIVITY_LIST: self.activity_list,
+            ATTR_CURRENT_ACTIVITY: self.current_activity,
+        }
+
     def send_command(self, command: Iterable[str], **kwargs: Any) -> None:
         """Send commands to a device."""
         raise NotImplementedError()