diff --git a/homeassistant/components/syncthru/__init__.py b/homeassistant/components/syncthru/__init__.py
index b6e7c8a70c9..016d0de7257 100644
--- a/homeassistant/components/syncthru/__init__.py
+++ b/homeassistant/components/syncthru/__init__.py
@@ -2,12 +2,11 @@
 
 from __future__ import annotations
 
-from pysyncthru import SyncThru, SyncThruAPINotSupported
+from pysyncthru import SyncThruAPINotSupported
 
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import Platform
 from homeassistant.core import HomeAssistant
-from homeassistant.helpers import device_registry as dr
 
 from .const import DOMAIN
 from .coordinator import SyncthruCoordinator
@@ -26,17 +25,6 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
         # and the config should simply be discarded
         return False
 
-    device_registry = dr.async_get(hass)
-    device_registry.async_get_or_create(
-        config_entry_id=entry.entry_id,
-        configuration_url=coordinator.syncthru.url,
-        connections=device_connections(coordinator.syncthru),
-        manufacturer="Samsung",
-        identifiers=device_identifiers(coordinator.syncthru),
-        model=coordinator.syncthru.model(),
-        name=coordinator.syncthru.hostname(),
-    )
-
     await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
     return True
 
@@ -46,18 +34,3 @@ async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
     hass.data[DOMAIN].pop(entry.entry_id, None)
     return unload_ok
-
-
-def device_identifiers(printer: SyncThru) -> set[tuple[str, str]] | None:
-    """Get device identifiers for device registry."""
-    serial = printer.serial_number()
-    if serial is None:
-        return None
-    return {(DOMAIN, serial)}
-
-
-def device_connections(printer: SyncThru) -> set[tuple[str, str]]:
-    """Get device connections for device registry."""
-    if mac := printer.raw().get("identity", {}).get("mac_addr"):
-        return {(dr.CONNECTION_NETWORK_MAC, mac)}
-    return set()
diff --git a/homeassistant/components/syncthru/binary_sensor.py b/homeassistant/components/syncthru/binary_sensor.py
index d863c5546d8..72157b9a22d 100644
--- a/homeassistant/components/syncthru/binary_sensor.py
+++ b/homeassistant/components/syncthru/binary_sensor.py
@@ -15,12 +15,11 @@ from homeassistant.components.binary_sensor import (
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_NAME
 from homeassistant.core import HomeAssistant
-from homeassistant.helpers.device_registry import DeviceInfo
 from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
-from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
-from . import SyncthruCoordinator, device_identifiers
+from . import SyncthruCoordinator
 from .const import DOMAIN
+from .entity import SyncthruEntity
 
 SYNCTHRU_STATE_PROBLEM = {
     SyncthruState.INVALID: True,
@@ -71,7 +70,7 @@ async def async_setup_entry(
     )
 
 
-class SyncThruBinarySensor(CoordinatorEntity[SyncthruCoordinator], BinarySensorEntity):
+class SyncThruBinarySensor(SyncthruEntity, BinarySensorEntity):
     """Implementation of an abstract Samsung Printer binary sensor platform."""
 
     entity_description: SyncThruBinarySensorDescription
@@ -90,15 +89,6 @@ class SyncThruBinarySensor(CoordinatorEntity[SyncthruCoordinator], BinarySensorE
         self._attr_unique_id = f"{serial_number}_{entity_description.key}"
         self._attr_name = name
 
-    @property
-    def device_info(self) -> DeviceInfo | None:
-        """Return device information."""
-        if (identifiers := device_identifiers(self.coordinator.data)) is None:
-            return None
-        return DeviceInfo(
-            identifiers=identifiers,
-        )
-
     @property
     def is_on(self) -> bool | None:
         """Return true if the binary sensor is on."""
diff --git a/homeassistant/components/syncthru/entity.py b/homeassistant/components/syncthru/entity.py
new file mode 100644
index 00000000000..fa3fbb0f2f4
--- /dev/null
+++ b/homeassistant/components/syncthru/entity.py
@@ -0,0 +1,28 @@
+"""Base class for Syncthru entities."""
+
+from homeassistant.helpers import device_registry as dr
+from homeassistant.helpers.device_registry import DeviceInfo
+from homeassistant.helpers.update_coordinator import CoordinatorEntity
+
+from . import DOMAIN, SyncthruCoordinator
+
+
+class SyncthruEntity(CoordinatorEntity[SyncthruCoordinator]):
+    """Base class for Syncthru entities."""
+
+    def __init__(self, coordinator: SyncthruCoordinator) -> None:
+        """Initialize the Syncthru entity."""
+        super().__init__(coordinator)
+        serial_number = coordinator.syncthru.serial_number()
+        assert serial_number is not None
+        connections = set()
+        if mac := coordinator.syncthru.raw().get("identity", {}).get("mac_addr"):
+            connections.add((dr.CONNECTION_NETWORK_MAC, mac))
+        self._attr_device_info = DeviceInfo(
+            identifiers={(DOMAIN, serial_number)},
+            connections=connections,
+            configuration_url=coordinator.syncthru.url,
+            manufacturer="Samsung",
+            model=coordinator.syncthru.model(),
+            name=coordinator.syncthru.hostname(),
+        )
diff --git a/homeassistant/components/syncthru/sensor.py b/homeassistant/components/syncthru/sensor.py
index 3f4c802e62d..022d48b463f 100644
--- a/homeassistant/components/syncthru/sensor.py
+++ b/homeassistant/components/syncthru/sensor.py
@@ -12,12 +12,11 @@ from homeassistant.components.sensor import SensorEntity, SensorEntityDescriptio
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_NAME, PERCENTAGE
 from homeassistant.core import HomeAssistant
-from homeassistant.helpers.device_registry import DeviceInfo
 from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
-from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
-from . import SyncthruCoordinator, device_identifiers
+from . import SyncthruCoordinator
 from .const import DOMAIN
+from .entity import SyncthruEntity
 
 SYNCTHRU_STATE_HUMAN = {
     SyncthruState.INVALID: "invalid",
@@ -138,7 +137,7 @@ async def async_setup_entry(
     )
 
 
-class SyncThruSensor(CoordinatorEntity[SyncthruCoordinator], SensorEntity):
+class SyncThruSensor(SyncthruEntity, SensorEntity):
     """Implementation of an abstract Samsung Printer sensor platform."""
 
     _attr_icon = "mdi:printer"
@@ -159,15 +158,6 @@ class SyncThruSensor(CoordinatorEntity[SyncthruCoordinator], SensorEntity):
         assert serial_number is not None
         self._attr_unique_id = f"{serial_number}_{entity_description.key}"
 
-    @property
-    def device_info(self) -> DeviceInfo | None:
-        """Return device information."""
-        if (identifiers := device_identifiers(self.syncthru)) is None:
-            return None
-        return DeviceInfo(
-            identifiers=identifiers,
-        )
-
     @property
     def native_value(self) -> str | int | None:
         """Return the state of the sensor."""