diff --git a/homeassistant/components/netatmo/sensor.py b/homeassistant/components/netatmo/sensor.py
index 6e96a73135f..fd40bbf88b6 100644
--- a/homeassistant/components/netatmo/sensor.py
+++ b/homeassistant/components/netatmo/sensor.py
@@ -83,15 +83,12 @@ def process_health(health: StateType) -> str | None:
     """Process health index and return string for display."""
     if not isinstance(health, int):
         return None
-    if health == 0:
-        return "Healthy"
-    if health == 1:
-        return "Fine"
-    if health == 2:
-        return "Fair"
-    if health == 3:
-        return "Poor"
-    return "Unhealthy"
+    return {
+        0: "healthy",
+        1: "fine",
+        2: "fair",
+        3: "poor",
+    }.get(health, "unhealthy")
 
 
 def process_rf(strength: StateType) -> str | None:
@@ -274,6 +271,8 @@ SENSOR_TYPES: tuple[NetatmoSensorEntityDescription, ...] = (
     NetatmoSensorEntityDescription(
         key="health_idx",
         netatmo_name="health_idx",
+        device_class=SensorDeviceClass.ENUM,
+        options=["healthy", "fine", "fair", "poor", "unhealthy"],
         value_fn=process_health,
     ),
     NetatmoSensorEntityDescription(
diff --git a/homeassistant/components/netatmo/strings.json b/homeassistant/components/netatmo/strings.json
index b8840c27006..3c360634147 100644
--- a/homeassistant/components/netatmo/strings.json
+++ b/homeassistant/components/netatmo/strings.json
@@ -229,7 +229,14 @@
         "name": "Wi-Fi"
       },
       "health_idx": {
-        "name": "Health index"
+        "name": "Health index",
+        "state": {
+          "healthy": "Healthy",
+          "fine": "Fine",
+          "fair": "Fair",
+          "poor": "Poor",
+          "unhealthy": "Unhealthy"
+        }
       }
     }
   }
diff --git a/tests/components/netatmo/snapshots/test_sensor.ambr b/tests/components/netatmo/snapshots/test_sensor.ambr
index b6dacb1911c..0684956adb8 100644
--- a/tests/components/netatmo/snapshots/test_sensor.ambr
+++ b/tests/components/netatmo/snapshots/test_sensor.ambr
@@ -118,7 +118,15 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'options': list([
+        'healthy',
+        'fine',
+        'fair',
+        'poor',
+        'unhealthy',
+      ]),
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -135,7 +143,7 @@
     'name': None,
     'options': dict({
     }),
-    'original_device_class': None,
+    'original_device_class': <SensorDeviceClass.ENUM: 'enum'>,
     'original_icon': None,
     'original_name': 'Health index',
     'platform': 'netatmo',
@@ -150,16 +158,24 @@
   StateSnapshot({
     'attributes': ReadOnlyDict({
       'attribution': 'Data provided by Netatmo',
+      'device_class': 'enum',
       'friendly_name': 'Baby Bedroom Health index',
       'latitude': 13.377726,
       'longitude': 52.516263,
+      'options': list([
+        'healthy',
+        'fine',
+        'fair',
+        'poor',
+        'unhealthy',
+      ]),
     }),
     'context': <ANY>,
     'entity_id': 'sensor.baby_bedroom_health_index',
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': 'Fine',
+    'state': 'fine',
   })
 # ---
 # name: test_entity[sensor.baby_bedroom_humidity-entry]
@@ -638,7 +654,15 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'options': list([
+        'healthy',
+        'fine',
+        'fair',
+        'poor',
+        'unhealthy',
+      ]),
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -655,7 +679,7 @@
     'name': None,
     'options': dict({
     }),
-    'original_device_class': None,
+    'original_device_class': <SensorDeviceClass.ENUM: 'enum'>,
     'original_icon': None,
     'original_name': 'Health index',
     'platform': 'netatmo',
@@ -670,7 +694,15 @@
   StateSnapshot({
     'attributes': ReadOnlyDict({
       'attribution': 'Data provided by Netatmo',
+      'device_class': 'enum',
       'friendly_name': 'Bedroom Health index',
+      'options': list([
+        'healthy',
+        'fine',
+        'fair',
+        'poor',
+        'unhealthy',
+      ]),
     }),
     'context': <ANY>,
     'entity_id': 'sensor.bedroom_health_index',
@@ -2845,7 +2877,15 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'options': list([
+        'healthy',
+        'fine',
+        'fair',
+        'poor',
+        'unhealthy',
+      ]),
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -2862,7 +2902,7 @@
     'name': None,
     'options': dict({
     }),
-    'original_device_class': None,
+    'original_device_class': <SensorDeviceClass.ENUM: 'enum'>,
     'original_icon': None,
     'original_name': 'Health index',
     'platform': 'netatmo',
@@ -2877,9 +2917,17 @@
   StateSnapshot({
     'attributes': ReadOnlyDict({
       'attribution': 'Data provided by Netatmo',
+      'device_class': 'enum',
       'friendly_name': 'Kitchen Health index',
       'latitude': 13.377726,
       'longitude': 52.516263,
+      'options': list([
+        'healthy',
+        'fine',
+        'fair',
+        'poor',
+        'unhealthy',
+      ]),
     }),
     'context': <ANY>,
     'entity_id': 'sensor.kitchen_health_index',
@@ -3916,7 +3964,15 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'options': list([
+        'healthy',
+        'fine',
+        'fair',
+        'poor',
+        'unhealthy',
+      ]),
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -3933,7 +3989,7 @@
     'name': None,
     'options': dict({
     }),
-    'original_device_class': None,
+    'original_device_class': <SensorDeviceClass.ENUM: 'enum'>,
     'original_icon': None,
     'original_name': 'Health index',
     'platform': 'netatmo',
@@ -3948,9 +4004,17 @@
   StateSnapshot({
     'attributes': ReadOnlyDict({
       'attribution': 'Data provided by Netatmo',
+      'device_class': 'enum',
       'friendly_name': 'Livingroom Health index',
       'latitude': 13.377726,
       'longitude': 52.516263,
+      'options': list([
+        'healthy',
+        'fine',
+        'fair',
+        'poor',
+        'unhealthy',
+      ]),
     }),
     'context': <ANY>,
     'entity_id': 'sensor.livingroom_health_index',
@@ -4440,7 +4504,15 @@
     'aliases': set({
     }),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      'options': list([
+        'healthy',
+        'fine',
+        'fair',
+        'poor',
+        'unhealthy',
+      ]),
+    }),
     'config_entry_id': <ANY>,
     'device_class': None,
     'device_id': <ANY>,
@@ -4457,7 +4529,7 @@
     'name': None,
     'options': dict({
     }),
-    'original_device_class': None,
+    'original_device_class': <SensorDeviceClass.ENUM: 'enum'>,
     'original_icon': None,
     'original_name': 'Health index',
     'platform': 'netatmo',
@@ -4472,16 +4544,24 @@
   StateSnapshot({
     'attributes': ReadOnlyDict({
       'attribution': 'Data provided by Netatmo',
+      'device_class': 'enum',
       'friendly_name': 'Parents Bedroom Health index',
       'latitude': 13.377726,
       'longitude': 52.516263,
+      'options': list([
+        'healthy',
+        'fine',
+        'fair',
+        'poor',
+        'unhealthy',
+      ]),
     }),
     'context': <ANY>,
     'entity_id': 'sensor.parents_bedroom_health_index',
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': 'Fine',
+    'state': 'fine',
   })
 # ---
 # name: test_entity[sensor.parents_bedroom_humidity-entry]
diff --git a/tests/components/netatmo/test_sensor.py b/tests/components/netatmo/test_sensor.py
index 4a6233e17e1..4fa64e59b11 100644
--- a/tests/components/netatmo/test_sensor.py
+++ b/tests/components/netatmo/test_sensor.py
@@ -136,7 +136,7 @@ async def test_process_rf(strength: int, expected: str) -> None:
 
 @pytest.mark.parametrize(
     ("health", "expected"),
-    [(4, "Unhealthy"), (3, "Poor"), (2, "Fair"), (1, "Fine"), (0, "Healthy")],
+    [(4, "unhealthy"), (3, "poor"), (2, "fair"), (1, "fine"), (0, "healthy")],
 )
 async def test_process_health(health: int, expected: str) -> None:
     """Test health index translation."""
@@ -195,7 +195,7 @@ async def test_process_health(health: int, expected: str) -> None:
         (
             "12:34:56:26:68:92-health_idx",
             "baby_bedroom_health",
-            "Fine",
+            "fine",
         ),
         (
             "12:34:56:26:68:92-wifi_status",