diff --git a/homeassistant/components/smartthings/climate.py b/homeassistant/components/smartthings/climate.py
index b634321fe43..8abc0b4a590 100644
--- a/homeassistant/components/smartthings/climate.py
+++ b/homeassistant/components/smartthings/climate.py
@@ -251,6 +251,8 @@ class SmartThingsThermostat(SmartThingsEntity, ClimateEntity):
     @property
     def hvac_action(self) -> HVACAction | None:
         """Return the current running hvac operation if supported."""
+        if not self.supports_capability(Capability.THERMOSTAT_OPERATING_STATE):
+            return None
         return OPERATING_STATE_TO_ACTION.get(
             self.get_attribute_value(
                 Capability.THERMOSTAT_OPERATING_STATE,
diff --git a/tests/components/smartthings/conftest.py b/tests/components/smartthings/conftest.py
index d60099e8e76..131308c687f 100644
--- a/tests/components/smartthings/conftest.py
+++ b/tests/components/smartthings/conftest.py
@@ -118,6 +118,7 @@ def mock_smartthings() -> Generator[AsyncMock]:
         "fake_fan",
         "generic_fan_3_speed",
         "heatit_ztrm3_thermostat",
+        "bosch_radiator_thermostat_ii",
     ]
 )
 def device_fixture(
diff --git a/tests/components/smartthings/fixtures/device_status/bosch_radiator_thermostat_ii.json b/tests/components/smartthings/fixtures/device_status/bosch_radiator_thermostat_ii.json
new file mode 100644
index 00000000000..6248eb05e93
--- /dev/null
+++ b/tests/components/smartthings/fixtures/device_status/bosch_radiator_thermostat_ii.json
@@ -0,0 +1,89 @@
+{
+  "components": {
+    "main": {
+      "temperatureMeasurement": {
+        "temperatureRange": {
+          "value": null
+        },
+        "temperature": {
+          "value": 23.9,
+          "unit": "C",
+          "timestamp": "2025-03-07T19:55:13.328Z"
+        }
+      },
+      "thermostatHeatingSetpoint": {
+        "heatingSetpoint": {
+          "value": 22.0,
+          "unit": "C",
+          "timestamp": "2025-03-05T03:05:26.510Z"
+        },
+        "heatingSetpointRange": {
+          "value": {
+            "minimum": 5.0,
+            "maximum": 40.0,
+            "step": 0.1
+          },
+          "unit": "C",
+          "timestamp": "2025-03-05T03:05:26.510Z"
+        }
+      },
+      "refresh": {},
+      "thermostatMode": {
+        "thermostatMode": {
+          "value": "heat",
+          "data": {
+            "supportedThermostatModes": ["off", "heat"]
+          },
+          "timestamp": "2025-03-05T03:05:26.489Z"
+        },
+        "supportedThermostatModes": {
+          "value": ["off", "heat"],
+          "timestamp": "2025-03-05T03:05:26.509Z"
+        }
+      },
+      "battery": {
+        "quantity": {
+          "value": null
+        },
+        "battery": {
+          "value": 94,
+          "unit": "%",
+          "timestamp": "2025-03-07T20:47:27.362Z"
+        },
+        "type": {
+          "value": null
+        }
+      },
+      "firmwareUpdate": {
+        "lastUpdateStatusReason": {
+          "value": null
+        },
+        "availableVersion": {
+          "value": "2.00.09 (20009)",
+          "timestamp": "2024-11-29T19:55:02.005Z"
+        },
+        "lastUpdateStatus": {
+          "value": null
+        },
+        "supportedCommands": {
+          "value": null
+        },
+        "state": {
+          "value": "normalOperation",
+          "timestamp": "2024-11-29T19:55:02.009Z"
+        },
+        "updateAvailable": {
+          "value": false,
+          "timestamp": "2024-11-29T19:55:02.004Z"
+        },
+        "currentVersion": {
+          "value": "2.00.09 (20009)",
+          "timestamp": "2024-11-29T19:55:02.037Z"
+        },
+        "lastUpdateTime": {
+          "value": null
+        }
+      }
+    }
+  }
+}
diff --git a/tests/components/smartthings/fixtures/devices/bosch_radiator_thermostat_ii.json b/tests/components/smartthings/fixtures/devices/bosch_radiator_thermostat_ii.json
new file mode 100644
index 00000000000..7a2e2d338cd
--- /dev/null
+++ b/tests/components/smartthings/fixtures/devices/bosch_radiator_thermostat_ii.json
@@ -0,0 +1,102 @@
+{
+  "items": [
+    {
+      "deviceId": "286ba274-4093-4bcb-849c-a1a3efe7b1e5",
+      "name": "thermostat",
+      "label": "Radiator Thermostat II [+M] Wohnzimmer",
+      "manufacturerName": "SmartThingsCommunity",
+      "presentationId": "2a1c9915-f61b-3f3a-a02b-703b8cccf3d6",
+      "deviceManufacturerCode": "BOSCH",
+      "locationId": "0b6618a6-c3ab-4b6e-968d-59cc8c2761bc",
+      "ownerId": "8a20b799-9d87-ecdc-39de-c93c6e4d3ea1",
+      "roomId": "11374ab5-9b4e-416b-91d1-745bbf9b6db4",
+      "components": [
+        {
+          "id": "main",
+          "label": "main",
+          "capabilities": [
+            {
+              "id": "temperatureMeasurement",
+              "version": 1
+            },
+            {
+              "id": "thermostatMode",
+              "version": 1
+            },
+            {
+              "id": "thermostatHeatingSetpoint",
+              "version": 1
+            },
+            {
+              "id": "battery",
+              "version": 1
+            },
+            {
+              "id": "firmwareUpdate",
+              "version": 1
+            },
+            {
+              "id": "refresh",
+              "version": 1
+            }
+          ],
+          "categories": [
+            {
+              "name": "Thermostat",
+              "categoryType": "manufacturer"
+            }
+          ]
+        }
+      ],
+      "createTime": "2024-11-29T19:55:00.910Z",
+      "parentDeviceId": "61bd280e-71c4-44fb-9b6e-53fdf14718a2",
+      "profile": {
+        "id": "4da5d086-111e-3084-a039-616974326833"
+      },
+      "matter": {
+        "driverId": "5f3c42eb-5704-4c95-9705-c51c1a6764bf",
+        "hubId": "61bd280e-71c4-44fb-9b6e-53fdf14718a2",
+        "provisioningState": "PROVISIONED",
+        "networkId": "8EF2CF7A212285B2-46C6B9F266A4521A",
+        "executingLocally": true,
+        "uniqueId": "8475B3FEFF6748D4",
+        "vendorId": 4617,
+        "productId": 12306,
+        "serialNumber": "D44867FFFEB37584",
+        "listeningType": "SLEEPY",
+        "supportedNetworkInterfaces": ["THREAD"],
+        "version": {
+          "hardware": 18,
+          "hardwareLabel": "1.2.0",
+          "software": 20009,
+          "softwareLabel": "2.00.09"
+        },
+        "endpoints": [
+          {
+            "endpointId": 0,
+            "deviceTypes": [
+              {
+                "deviceTypeId": 22
+              }
+            ]
+          },
+          {
+            "endpointId": 1,
+            "deviceTypes": [
+              {
+                "deviceTypeId": 769
+              }
+            ]
+          }
+        ],
+        "syncDrivers": true
+      },
+      "type": "MATTER",
+      "restrictionTier": 0,
+      "allowed": null,
+      "executionContext": "LOCAL",
+      "relationships": []
+    }
+  ],
+  "_links": {}
+}
diff --git a/tests/components/smartthings/snapshots/test_climate.ambr b/tests/components/smartthings/snapshots/test_climate.ambr
index c85c7af19a6..4d3fd15aeb9 100644
--- a/tests/components/smartthings/snapshots/test_climate.ambr
+++ b/tests/components/smartthings/snapshots/test_climate.ambr
@@ -1,4 +1,67 @@
 # serializer version: 1
+# name: test_all_entities[bosch_radiator_thermostat_ii][climate.radiator_thermostat_ii_m_wohnzimmer-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': dict({
+      'hvac_modes': list([
+        <HVACMode.HEAT: 'heat'>,
+      ]),
+      'max_temp': 35,
+      'min_temp': 7,
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'climate',
+    'entity_category': None,
+    'entity_id': 'climate.radiator_thermostat_ii_m_wohnzimmer',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': None,
+    'platform': 'smartthings',
+    'previous_unique_id': None,
+    'supported_features': <ClimateEntityFeature: 387>,
+    'translation_key': None,
+    'unique_id': '286ba274-4093-4bcb-849c-a1a3efe7b1e5',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_all_entities[bosch_radiator_thermostat_ii][climate.radiator_thermostat_ii_m_wohnzimmer-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'current_temperature': 23.9,
+      'friendly_name': 'Radiator Thermostat II [+M] Wohnzimmer',
+      'hvac_modes': list([
+        <HVACMode.HEAT: 'heat'>,
+      ]),
+      'max_temp': 35,
+      'min_temp': 7,
+      'supported_features': <ClimateEntityFeature: 387>,
+      'target_temp_high': None,
+      'target_temp_low': None,
+      'temperature': 22.0,
+    }),
+    'context': <ANY>,
+    'entity_id': 'climate.radiator_thermostat_ii_m_wohnzimmer',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'heat',
+  })
+# ---
 # name: test_all_entities[da_ac_rac_000001][climate.ac_office_granit-entry]
   EntityRegistryEntrySnapshot({
     'aliases': set({
diff --git a/tests/components/smartthings/snapshots/test_init.ambr b/tests/components/smartthings/snapshots/test_init.ambr
index e25abf918cd..5342830e4ca 100644
--- a/tests/components/smartthings/snapshots/test_init.ambr
+++ b/tests/components/smartthings/snapshots/test_init.ambr
@@ -68,6 +68,39 @@
     'via_device_id': None,
   })
 # ---
+# name: test_devices[bosch_radiator_thermostat_ii]
+  DeviceRegistryEntrySnapshot({
+    'area_id': None,
+    'config_entries': <ANY>,
+    'config_entries_subentries': <ANY>,
+    'configuration_url': 'https://account.smartthings.com',
+    'connections': set({
+    }),
+    'disabled_by': None,
+    'entry_type': None,
+    'hw_version': None,
+    'id': <ANY>,
+    'identifiers': set({
+      tuple(
+        'smartthings',
+        '286ba274-4093-4bcb-849c-a1a3efe7b1e5',
+      ),
+    }),
+    'is_new': False,
+    'labels': set({
+    }),
+    'manufacturer': None,
+    'model': None,
+    'model_id': None,
+    'name': 'Radiator Thermostat II [+M] Wohnzimmer',
+    'name_by_user': None,
+    'primary_config_entry': <ANY>,
+    'serial_number': None,
+    'suggested_area': None,
+    'sw_version': None,
+    'via_device_id': None,
+  })
+# ---
 # name: test_devices[c2c_arlo_pro_3_switch]
   DeviceRegistryEntrySnapshot({
     'area_id': None,
diff --git a/tests/components/smartthings/snapshots/test_sensor.ambr b/tests/components/smartthings/snapshots/test_sensor.ambr
index 017689f13fd..cb282e24b27 100644
--- a/tests/components/smartthings/snapshots/test_sensor.ambr
+++ b/tests/components/smartthings/snapshots/test_sensor.ambr
@@ -258,6 +258,107 @@
     'state': '938.3',
   })
 # ---
+# name: test_all_entities[bosch_radiator_thermostat_ii][sensor.radiator_thermostat_ii_m_wohnzimmer_battery-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': <EntityCategory.DIAGNOSTIC: 'diagnostic'>,
+    'entity_id': 'sensor.radiator_thermostat_ii_m_wohnzimmer_battery',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': <SensorDeviceClass.BATTERY: 'battery'>,
+    'original_icon': None,
+    'original_name': 'Battery',
+    'platform': 'smartthings',
+    'previous_unique_id': None,
+    'supported_features': 0,
+    'translation_key': None,
+    'unique_id': '286ba274-4093-4bcb-849c-a1a3efe7b1e5.battery',
+    'unit_of_measurement': '%',
+  })
+# ---
+# name: test_all_entities[bosch_radiator_thermostat_ii][sensor.radiator_thermostat_ii_m_wohnzimmer_battery-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'device_class': 'battery',
+      'friendly_name': 'Radiator Thermostat II [+M] Wohnzimmer Battery',
+      'unit_of_measurement': '%',
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.radiator_thermostat_ii_m_wohnzimmer_battery',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '94',
+  })
+# ---
+# name: test_all_entities[bosch_radiator_thermostat_ii][sensor.radiator_thermostat_ii_m_wohnzimmer_temperature-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': None,
+    'entity_id': 'sensor.radiator_thermostat_ii_m_wohnzimmer_temperature',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': <SensorDeviceClass.TEMPERATURE: 'temperature'>,
+    'original_icon': None,
+    'original_name': 'Temperature',
+    'platform': 'smartthings',
+    'previous_unique_id': None,
+    'supported_features': 0,
+    'translation_key': None,
+    'unique_id': '286ba274-4093-4bcb-849c-a1a3efe7b1e5.temperature',
+    'unit_of_measurement': <UnitOfTemperature.CELSIUS: '°C'>,
+  })
+# ---
+# name: test_all_entities[bosch_radiator_thermostat_ii][sensor.radiator_thermostat_ii_m_wohnzimmer_temperature-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'device_class': 'temperature',
+      'friendly_name': 'Radiator Thermostat II [+M] Wohnzimmer Temperature',
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+      'unit_of_measurement': <UnitOfTemperature.CELSIUS: '°C'>,
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.radiator_thermostat_ii_m_wohnzimmer_temperature',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '23.9',
+  })
+# ---
 # name: test_all_entities[c2c_arlo_pro_3_switch][sensor.2nd_floor_hallway_alarm-entry]
   EntityRegistryEntrySnapshot({
     'aliases': set({