diff --git a/homeassistant/components/sma/__init__.py b/homeassistant/components/sma/__init__.py
index d8fcbbf8099..5db3039af40 100644
--- a/homeassistant/components/sma/__init__.py
+++ b/homeassistant/components/sma/__init__.py
@@ -32,6 +32,7 @@ from .const import (
     DOMAIN,
     PLATFORMS,
     PYSMA_COORDINATOR,
+    PYSMA_DEVICE_INFO,
     PYSMA_OBJECT,
     PYSMA_REMOVE_LISTENER,
     PYSMA_SENSORS,
@@ -141,6 +142,8 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     session = async_get_clientsession(hass, verify_ssl=verify_ssl)
     sma = pysma.SMA(session, url, password, group)
 
+    # Get updated device info
+    device_info = await sma.device_info()
     # Get all device sensors
     sensor_def = await sma.get_sensors()
 
@@ -189,6 +192,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
         PYSMA_COORDINATOR: coordinator,
         PYSMA_SENSORS: sensor_def,
         PYSMA_REMOVE_LISTENER: remove_stop_listener,
+        PYSMA_DEVICE_INFO: device_info,
     }
 
     hass.config_entries.async_setup_platforms(entry, PLATFORMS)
diff --git a/homeassistant/components/sma/config_flow.py b/homeassistant/components/sma/config_flow.py
index a5147098c9f..66d875562ab 100644
--- a/homeassistant/components/sma/config_flow.py
+++ b/homeassistant/components/sma/config_flow.py
@@ -20,7 +20,7 @@ from homeassistant.data_entry_flow import FlowResult
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
-from .const import CONF_CUSTOM, CONF_GROUP, DEVICE_INFO, DOMAIN, GROUPS
+from .const import CONF_CUSTOM, CONF_GROUP, DOMAIN, GROUPS
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -63,7 +63,6 @@ class SmaConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
             CONF_PASSWORD: vol.UNDEFINED,
             CONF_SENSORS: [],
             CONF_CUSTOM: {},
-            DEVICE_INFO: {},
         }
 
     async def async_step_user(
@@ -79,7 +78,7 @@ class SmaConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
             self._data[CONF_PASSWORD] = user_input[CONF_PASSWORD]
 
             try:
-                self._data[DEVICE_INFO] = await validate_input(self.hass, user_input)
+                device_info = await validate_input(self.hass, user_input)
             except aiohttp.ClientError:
                 errors["base"] = "cannot_connect"
             except InvalidAuth:
@@ -91,7 +90,7 @@ class SmaConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
                 errors["base"] = "unknown"
 
             if not errors:
-                await self.async_set_unique_id(self._data[DEVICE_INFO]["serial"])
+                await self.async_set_unique_id(device_info["serial"])
                 self._abort_if_unique_id_configured()
                 return self.async_create_entry(
                     title=self._data[CONF_HOST], data=self._data
@@ -120,7 +119,6 @@ class SmaConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
     ) -> FlowResult:
         """Import a config flow from configuration."""
         device_info = await validate_input(self.hass, import_config)
-        import_config[DEVICE_INFO] = device_info
 
         # If unique is configured import was already run
         # This means remap was already done, so we can abort
diff --git a/homeassistant/components/sma/const.py b/homeassistant/components/sma/const.py
index 2e1086e48a2..91173d95493 100644
--- a/homeassistant/components/sma/const.py
+++ b/homeassistant/components/sma/const.py
@@ -6,6 +6,7 @@ PYSMA_COORDINATOR = "coordinator"
 PYSMA_OBJECT = "pysma"
 PYSMA_REMOVE_LISTENER = "remove_listener"
 PYSMA_SENSORS = "pysma_sensors"
+PYSMA_DEVICE_INFO = "device_info"
 
 PLATFORMS = ["sensor"]
 
@@ -14,7 +15,6 @@ CONF_FACTOR = "factor"
 CONF_GROUP = "group"
 CONF_KEY = "key"
 CONF_UNIT = "unit"
-DEVICE_INFO = "device_info"
 
 DEFAULT_SCAN_INTERVAL = 5
 
diff --git a/homeassistant/components/sma/sensor.py b/homeassistant/components/sma/sensor.py
index 2ef999a6579..3894f864ffb 100644
--- a/homeassistant/components/sma/sensor.py
+++ b/homeassistant/components/sma/sensor.py
@@ -33,10 +33,10 @@ from .const import (
     CONF_GROUP,
     CONF_KEY,
     CONF_UNIT,
-    DEVICE_INFO,
     DOMAIN,
     GROUPS,
     PYSMA_COORDINATOR,
+    PYSMA_DEVICE_INFO,
     PYSMA_SENSORS,
 )
 
@@ -124,6 +124,7 @@ async def async_setup_entry(
 
     coordinator = sma_data[PYSMA_COORDINATOR]
     used_sensors = sma_data[PYSMA_SENSORS]
+    device_info = sma_data[PYSMA_DEVICE_INFO]
 
     entities = []
     for sensor in used_sensors:
@@ -131,7 +132,7 @@ async def async_setup_entry(
             SMAsensor(
                 coordinator,
                 config_entry.unique_id,
-                config_entry.data[DEVICE_INFO],
+                device_info,
                 sensor,
             )
         )
@@ -185,11 +186,15 @@ class SMAsensor(CoordinatorEntity, SensorEntity):
     @property
     def device_info(self) -> DeviceInfo:
         """Return the device information."""
+        if not self._device_info:
+            return None
+
         return {
             "identifiers": {(DOMAIN, self._config_entry_unique_id)},
             "name": self._device_info["name"],
             "manufacturer": self._device_info["manufacturer"],
             "model": self._device_info["type"],
+            "sw_version": self._device_info["sw_version"],
         }
 
     @property
diff --git a/tests/components/sma/__init__.py b/tests/components/sma/__init__.py
index 0797558958e..4210772420c 100644
--- a/tests/components/sma/__init__.py
+++ b/tests/components/sma/__init__.py
@@ -69,7 +69,6 @@ MOCK_CUSTOM_SENSOR2 = {
 MOCK_SETUP_DATA = dict(
     {
         "custom": {},
-        "device_info": MOCK_DEVICE,
         "sensors": [],
     },
     **MOCK_USER_INPUT,
@@ -91,7 +90,6 @@ MOCK_CUSTOM_SETUP_DATA = dict(
                 "unit": MOCK_CUSTOM_SENSOR2["unit"],
             },
         },
-        "device_info": MOCK_DEVICE,
         "sensors": [],
     },
     **MOCK_USER_INPUT,