diff --git a/homeassistant/components/esphome/__init__.py b/homeassistant/components/esphome/__init__.py
index 3af95576c18..b06fcd4bab0 100644
--- a/homeassistant/components/esphome/__init__.py
+++ b/homeassistant/components/esphome/__init__.py
@@ -25,6 +25,8 @@ from .manager import ESPHomeManager, cleanup_instance
 
 CONFIG_SCHEMA = cv.config_entry_only_config_schema(DOMAIN)
 
+CLIENT_INFO = f"Home Assistant {ha_version}"
+
 
 async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the esphome component."""
@@ -34,10 +36,10 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
 
 async def async_setup_entry(hass: HomeAssistant, entry: ESPHomeConfigEntry) -> bool:
     """Set up the esphome component."""
-    host = entry.data[CONF_HOST]
-    port = entry.data[CONF_PORT]
-    password = entry.data[CONF_PASSWORD]
-    noise_psk = entry.data.get(CONF_NOISE_PSK)
+    host: str = entry.data[CONF_HOST]
+    port: int = entry.data[CONF_PORT]
+    password: str | None = entry.data[CONF_PASSWORD]
+    noise_psk: str | None = entry.data.get(CONF_NOISE_PSK)
 
     zeroconf_instance = await zeroconf.async_get_instance(hass)
 
@@ -45,7 +47,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ESPHomeConfigEntry) -> b
         host,
         port,
         password,
-        client_info=f"Home Assistant {ha_version}",
+        client_info=CLIENT_INFO,
         zeroconf_instance=zeroconf_instance,
         noise_psk=noise_psk,
     )
@@ -61,7 +63,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ESPHomeConfigEntry) -> b
     entry.runtime_data = entry_data
 
     manager = ESPHomeManager(
-        hass, entry, host, password, cli, zeroconf_instance, domain_data, entry_data
+        hass, entry, host, password, cli, zeroconf_instance, domain_data
     )
     await manager.async_start()
 
diff --git a/homeassistant/components/esphome/domain_data.py b/homeassistant/components/esphome/domain_data.py
index e9057ddfeaa..aa46469c40e 100644
--- a/homeassistant/components/esphome/domain_data.py
+++ b/homeassistant/components/esphome/domain_data.py
@@ -33,12 +33,6 @@ class DomainData:
         """
         return entry.runtime_data
 
-    def set_entry_data(
-        self, entry: ESPHomeConfigEntry, entry_data: RuntimeEntryData
-    ) -> None:
-        """Set the runtime entry data associated with this config entry."""
-        entry.runtime_data = entry_data
-
     def get_or_create_store(
         self, hass: HomeAssistant, entry: ESPHomeConfigEntry
     ) -> ESPHomeStorage:
diff --git a/homeassistant/components/esphome/manager.py b/homeassistant/components/esphome/manager.py
index 870bd704ee4..5ab0265c1d4 100644
--- a/homeassistant/components/esphome/manager.py
+++ b/homeassistant/components/esphome/manager.py
@@ -164,7 +164,6 @@ class ESPHomeManager:
         cli: APIClient,
         zeroconf_instance: zeroconf.HaZeroconf,
         domain_data: DomainData,
-        entry_data: RuntimeEntryData,
     ) -> None:
         """Initialize the esphome manager."""
         self.hass = hass
@@ -177,7 +176,7 @@ class ESPHomeManager:
         self.voice_assistant_pipeline: VoiceAssistantPipeline | None = None
         self.reconnect_logic: ReconnectLogic | None = None
         self.zeroconf_instance = zeroconf_instance
-        self.entry_data = entry_data
+        self.entry_data = entry.runtime_data
 
     async def on_stop(self, event: Event) -> None:
         """Cleanup the socket client on HA close."""
diff --git a/tests/components/esphome/test_config_flow.py b/tests/components/esphome/test_config_flow.py
index 9c61a5d0615..9a2b1f1a80e 100644
--- a/tests/components/esphome/test_config_flow.py
+++ b/tests/components/esphome/test_config_flow.py
@@ -2,7 +2,7 @@
 
 from ipaddress import ip_address
 import json
-from unittest.mock import AsyncMock, MagicMock, patch
+from unittest.mock import AsyncMock, patch
 
 from aioesphomeapi import (
     APIClient,
@@ -18,7 +18,7 @@ import pytest
 
 from homeassistant import config_entries
 from homeassistant.components import dhcp, zeroconf
-from homeassistant.components.esphome import DomainData, dashboard
+from homeassistant.components.esphome import dashboard
 from homeassistant.components.esphome.const import (
     CONF_ALLOW_SERVICE_CALLS,
     CONF_DEVICE_NAME,
@@ -1136,10 +1136,7 @@ async def test_discovery_dhcp_no_changes(
     )
     entry.add_to_hass(hass)
 
-    mock_entry_data = MagicMock()
-    mock_entry_data.device_info.name = "test8266"
-    domain_data = DomainData.get(hass)
-    domain_data.set_entry_data(entry, mock_entry_data)
+    mock_client.device_info = AsyncMock(return_value=DeviceInfo(name="test8266"))
 
     service_info = dhcp.DhcpServiceInfo(
         ip="192.168.43.183",