diff --git a/homeassistant/components/blink/alarm_control_panel.py b/homeassistant/components/blink/alarm_control_panel.py
index c789d7cdd6f8f1..d1fcb889fb858c 100644
--- a/homeassistant/components/blink/alarm_control_panel.py
+++ b/homeassistant/components/blink/alarm_control_panel.py
@@ -60,12 +60,12 @@ def __init__(
         self.api: Blink = coordinator.api
         self._coordinator = coordinator
         self.sync = sync
-        self._name: str = name
         self._attr_unique_id: str = sync.serial
         self._attr_device_info = DeviceInfo(
             identifiers={(DOMAIN, sync.serial)},
             name=f"{DOMAIN} {name}",
             manufacturer=DEFAULT_BRAND,
+            serial_number=sync.serial,
         )
         self._update_attr()
 
diff --git a/homeassistant/components/blink/binary_sensor.py b/homeassistant/components/blink/binary_sensor.py
index 65e454e44342c7..47b45e2f4eccbb 100644
--- a/homeassistant/components/blink/binary_sensor.py
+++ b/homeassistant/components/blink/binary_sensor.py
@@ -72,9 +72,11 @@ def __init__(
         super().__init__(coordinator)
         self.entity_description = description
         self._camera = coordinator.api.cameras[camera]
-        self._attr_unique_id = f"{self._camera.serial}-{description.key}"
+        serial = self._camera.serial
+        self._attr_unique_id = f"{serial}-{description.key}"
         self._attr_device_info = DeviceInfo(
-            identifiers={(DOMAIN, self._camera.serial)},
+            identifiers={(DOMAIN, serial)},
+            serial_number=serial,
             name=camera,
             manufacturer=DEFAULT_BRAND,
             model=self._camera.camera_type,
diff --git a/homeassistant/components/blink/camera.py b/homeassistant/components/blink/camera.py
index 4ff0ba86db9481..31c4e4a563eda8 100644
--- a/homeassistant/components/blink/camera.py
+++ b/homeassistant/components/blink/camera.py
@@ -58,6 +58,7 @@ def __init__(self, coordinator: BlinkUpdateCoordinator, name, camera) -> None:
         self._attr_unique_id = f"{camera.serial}-camera"
         self._attr_device_info = DeviceInfo(
             identifiers={(DOMAIN, camera.serial)},
+            serial_number=camera.serial,
             name=name,
             manufacturer=DEFAULT_BRAND,
             model=camera.camera_type,
diff --git a/homeassistant/components/blink/sensor.py b/homeassistant/components/blink/sensor.py
index 9453d3b6d6b513..064ad9d04f2210 100644
--- a/homeassistant/components/blink/sensor.py
+++ b/homeassistant/components/blink/sensor.py
@@ -74,14 +74,16 @@ def __init__(
         self.entity_description = description
 
         self._camera = coordinator.api.cameras[camera]
-        self._attr_unique_id = f"{self._camera.serial}-{description.key}"
+        serial = self._camera.serial
+        self._attr_unique_id = f"{serial}-{description.key}"
         self._sensor_key = (
             "temperature_calibrated"
             if description.key == "temperature"
             else description.key
         )
         self._attr_device_info = DeviceInfo(
-            identifiers={(DOMAIN, self._camera.serial)},
+            identifiers={(DOMAIN, serial)},
+            serial_number=serial,
             name=f"{DOMAIN} {camera}",
             manufacturer=DEFAULT_BRAND,
             model=self._camera.camera_type,