diff --git a/homeassistant/components/bthome/__init__.py b/homeassistant/components/bthome/__init__.py
index 751c8f74bf9..566609b998b 100644
--- a/homeassistant/components/bthome/__init__.py
+++ b/homeassistant/components/bthome/__init__.py
@@ -14,7 +14,11 @@ from homeassistant.components.bluetooth import (
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import Platform
 from homeassistant.core import HomeAssistant
-from homeassistant.helpers.device_registry import DeviceRegistry, async_get
+from homeassistant.helpers.device_registry import (
+    CONNECTION_BLUETOOTH,
+    DeviceRegistry,
+    async_get,
+)
 
 from .const import (
     BTHOME_BLE_EVENT,
@@ -55,6 +59,7 @@ def process_service_info(
             sensor_device_info = update.devices[device_key.device_id]
             device = device_registry.async_get_or_create(
                 config_entry_id=entry.entry_id,
+                connections={(CONNECTION_BLUETOOTH, address)},
                 identifiers={(BLUETOOTH_DOMAIN, address)},
                 manufacturer=sensor_device_info.manufacturer,
                 model=sensor_device_info.model,
diff --git a/homeassistant/components/xiaomi_ble/__init__.py b/homeassistant/components/xiaomi_ble/__init__.py
index b12f4df7db1..ced8c3cc471 100644
--- a/homeassistant/components/xiaomi_ble/__init__.py
+++ b/homeassistant/components/xiaomi_ble/__init__.py
@@ -15,7 +15,11 @@ from homeassistant.components.bluetooth import (
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import Platform
 from homeassistant.core import CoreState, HomeAssistant
-from homeassistant.helpers.device_registry import DeviceRegistry, async_get
+from homeassistant.helpers.device_registry import (
+    CONNECTION_BLUETOOTH,
+    DeviceRegistry,
+    async_get,
+)
 
 from .const import (
     CONF_DISCOVERED_EVENT_CLASSES,
@@ -55,6 +59,7 @@ def process_service_info(
             sensor_device_info = update.devices[device_key.device_id]
             device = device_registry.async_get_or_create(
                 config_entry_id=entry.entry_id,
+                connections={(CONNECTION_BLUETOOTH, address)},
                 identifiers={(BLUETOOTH_DOMAIN, address)},
                 manufacturer=sensor_device_info.manufacturer,
                 model=sensor_device_info.model,