diff --git a/homeassistant/components/xiaomi_miio/vacuum.py b/homeassistant/components/xiaomi_miio/vacuum.py
index 416918e6f4360..9f88a9224664f 100644
--- a/homeassistant/components/xiaomi_miio/vacuum.py
+++ b/homeassistant/components/xiaomi_miio/vacuum.py
@@ -2,6 +2,7 @@
 import asyncio
 from functools import partial
 import logging
+from typing import Optional
 
 from miio import DeviceException, Vacuum  # pylint: disable=import-error
 import voluptuous as vol
@@ -35,6 +36,7 @@
     STATE_OFF,
     STATE_ON,
 )
+from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
 from .const import (
@@ -189,7 +191,20 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
     _LOGGER.info("Initializing with host %s (token %s...)", host, token[:5])
     vacuum = Vacuum(host, token)
 
-    mirobo = MiroboVacuum(name, vacuum)
+    try:
+        device_info = await hass.async_add_executor_job(vacuum.info)
+    except DeviceException:
+        raise PlatformNotReady
+
+    unique_id = device_info.mac_address
+    _LOGGER.debug(
+        "%s %s %s detected",
+        device_info.model,
+        device_info.firmware_version,
+        device_info.hardware_version,
+    )
+
+    mirobo = MiroboVacuum(name, vacuum, unique_id)
     hass.data[DATA_KEY][host] = mirobo
 
     async_add_entities([mirobo], update_before_add=True)
@@ -232,10 +247,11 @@ async def async_service_handler(service):
 class MiroboVacuum(StateVacuumDevice):
     """Representation of a Xiaomi Vacuum cleaner robot."""
 
-    def __init__(self, name, vacuum):
+    def __init__(self, name, vacuum, unique_id):
         """Initialize the Xiaomi vacuum cleaner robot handler."""
         self._name = name
         self._vacuum = vacuum
+        self._unique_id = unique_id
 
         self.vacuum_state = None
         self._available = False
@@ -247,6 +263,11 @@ def __init__(self, name, vacuum):
         self._fan_speeds = None
         self._fan_speeds_reverse = None
 
+    @property
+    def unique_id(self) -> Optional[str]:
+        """Return a unique ID."""
+        return self._unique_id
+
     @property
     def name(self):
         """Return the name of the device."""