diff --git a/homeassistant/components/rituals_perfume_genie/binary_sensor.py b/homeassistant/components/rituals_perfume_genie/binary_sensor.py
index a529ff3dca6..be251b86311 100644
--- a/homeassistant/components/rituals_perfume_genie/binary_sensor.py
+++ b/homeassistant/components/rituals_perfume_genie/binary_sensor.py
@@ -8,6 +8,7 @@ from homeassistant.components.binary_sensor import (
     BinarySensorEntity,
 )
 from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import ENTITY_CATEGORY_DIAGNOSTIC
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
@@ -38,6 +39,7 @@ class DiffuserBatteryChargingBinarySensor(DiffuserEntity, BinarySensorEntity):
     """Representation of a diffuser battery charging binary sensor."""
 
     _attr_device_class = DEVICE_CLASS_BATTERY_CHARGING
+    _attr_entity_category = ENTITY_CATEGORY_DIAGNOSTIC
 
     def __init__(
         self, diffuser: Diffuser, coordinator: RitualsDataUpdateCoordinator
diff --git a/homeassistant/components/rituals_perfume_genie/select.py b/homeassistant/components/rituals_perfume_genie/select.py
index eac95ee5ed4..9907e1d227f 100644
--- a/homeassistant/components/rituals_perfume_genie/select.py
+++ b/homeassistant/components/rituals_perfume_genie/select.py
@@ -5,7 +5,7 @@ from pyrituals import Diffuser
 
 from homeassistant.components.select import SelectEntity
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import AREA_SQUARE_METERS
+from homeassistant.const import AREA_SQUARE_METERS, ENTITY_CATEGORY_CONFIG
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
@@ -36,6 +36,7 @@ class DiffuserRoomSize(DiffuserEntity, SelectEntity):
     _attr_icon = "mdi:ruler-square"
     _attr_unit_of_measurement = AREA_SQUARE_METERS
     _attr_options = ["15", "30", "60", "100"]
+    _attr_entity_category = ENTITY_CATEGORY_CONFIG
 
     def __init__(
         self, diffuser: Diffuser, coordinator: RitualsDataUpdateCoordinator
diff --git a/homeassistant/components/rituals_perfume_genie/sensor.py b/homeassistant/components/rituals_perfume_genie/sensor.py
index 878fb2f1a86..5299539bcd9 100644
--- a/homeassistant/components/rituals_perfume_genie/sensor.py
+++ b/homeassistant/components/rituals_perfume_genie/sensor.py
@@ -8,6 +8,7 @@ from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
     DEVICE_CLASS_BATTERY,
     DEVICE_CLASS_SIGNAL_STRENGTH,
+    ENTITY_CATEGORY_DIAGNOSTIC,
     PERCENTAGE,
 )
 from homeassistant.core import HomeAssistant
@@ -92,6 +93,7 @@ class DiffuserBatterySensor(DiffuserEntity, SensorEntity):
 
     _attr_device_class = DEVICE_CLASS_BATTERY
     _attr_native_unit_of_measurement = PERCENTAGE
+    _attr_entity_category = ENTITY_CATEGORY_DIAGNOSTIC
 
     def __init__(
         self, diffuser: Diffuser, coordinator: RitualsDataUpdateCoordinator
@@ -110,6 +112,7 @@ class DiffuserWifiSensor(DiffuserEntity, SensorEntity):
 
     _attr_device_class = DEVICE_CLASS_SIGNAL_STRENGTH
     _attr_native_unit_of_measurement = PERCENTAGE
+    _attr_entity_category = ENTITY_CATEGORY_DIAGNOSTIC
 
     def __init__(
         self, diffuser: Diffuser, coordinator: RitualsDataUpdateCoordinator
diff --git a/tests/components/rituals_perfume_genie/test_binary_sensor.py b/tests/components/rituals_perfume_genie/test_binary_sensor.py
index f2e499655ca..769384dbbf8 100644
--- a/tests/components/rituals_perfume_genie/test_binary_sensor.py
+++ b/tests/components/rituals_perfume_genie/test_binary_sensor.py
@@ -1,7 +1,7 @@
 """Tests for the Rituals Perfume Genie binary sensor platform."""
 from homeassistant.components.binary_sensor import DEVICE_CLASS_BATTERY_CHARGING
 from homeassistant.components.rituals_perfume_genie.binary_sensor import CHARGING_SUFFIX
-from homeassistant.const import ATTR_DEVICE_CLASS, STATE_ON
+from homeassistant.const import ATTR_DEVICE_CLASS, ENTITY_CATEGORY_DIAGNOSTIC, STATE_ON
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import entity_registry
 
@@ -28,3 +28,4 @@ async def test_binary_sensors(hass: HomeAssistant) -> None:
     entry = registry.async_get("binary_sensor.genie_battery_charging")
     assert entry
     assert entry.unique_id == f"{hublot}{CHARGING_SUFFIX}"
+    assert entry.entity_category == ENTITY_CATEGORY_DIAGNOSTIC
diff --git a/tests/components/rituals_perfume_genie/test_select.py b/tests/components/rituals_perfume_genie/test_select.py
index fb159166fb7..5c6d344adca 100644
--- a/tests/components/rituals_perfume_genie/test_select.py
+++ b/tests/components/rituals_perfume_genie/test_select.py
@@ -9,6 +9,7 @@ from homeassistant.const import (
     AREA_SQUARE_METERS,
     ATTR_ENTITY_ID,
     ATTR_ICON,
+    ENTITY_CATEGORY_CONFIG,
     SERVICE_SELECT_OPTION,
 )
 from homeassistant.core import HomeAssistant
@@ -36,6 +37,7 @@ async def test_select_entity(hass: HomeAssistant) -> None:
     assert entry
     assert entry.unique_id == f"{diffuser.hublot}{ROOM_SIZE_SUFFIX}"
     assert entry.unit_of_measurement == AREA_SQUARE_METERS
+    assert entry.entity_category == ENTITY_CATEGORY_CONFIG
 
 
 async def test_select_option(hass: HomeAssistant) -> None:
diff --git a/tests/components/rituals_perfume_genie/test_sensor.py b/tests/components/rituals_perfume_genie/test_sensor.py
index 2c72d429a99..a76cf0d6c46 100644
--- a/tests/components/rituals_perfume_genie/test_sensor.py
+++ b/tests/components/rituals_perfume_genie/test_sensor.py
@@ -11,6 +11,7 @@ from homeassistant.const import (
     ATTR_UNIT_OF_MEASUREMENT,
     DEVICE_CLASS_BATTERY,
     DEVICE_CLASS_SIGNAL_STRENGTH,
+    ENTITY_CATEGORY_DIAGNOSTIC,
     PERCENTAGE,
 )
 from homeassistant.core import HomeAssistant
@@ -59,6 +60,7 @@ async def test_sensors_diffuser_v1_battery_cartridge(hass: HomeAssistant) -> Non
     entry = registry.async_get("sensor.genie_battery")
     assert entry
     assert entry.unique_id == f"{hublot}{BATTERY_SUFFIX}"
+    assert entry.entity_category == ENTITY_CATEGORY_DIAGNOSTIC
 
     state = hass.states.get("sensor.genie_wifi")
     assert state
@@ -69,6 +71,7 @@ async def test_sensors_diffuser_v1_battery_cartridge(hass: HomeAssistant) -> Non
     entry = registry.async_get("sensor.genie_wifi")
     assert entry
     assert entry.unique_id == f"{hublot}{WIFI_SUFFIX}"
+    assert entry.entity_category == ENTITY_CATEGORY_DIAGNOSTIC
 
 
 async def test_sensors_diffuser_v2_no_battery_no_cartridge(hass: HomeAssistant) -> None: