Thermostats · Head to head

Google Nest Learning Thermostat (4th gen) vs Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat

Full Smart Thermostats comparison in 2026

Updated October 2026
Data from the official Google and Honeywell Home sites.
2026 verdict
Although the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat costs less and has a touchscreen, the Google Nest Learning Thermostat (4th gen) is the more complete smart thermostat.
It ships with a remote temperature sensor, senses occupancy, motion and ambient light, and adds Matter, Apple HomeKit, dual-band Wi-Fi and Bluetooth, backed by a 2 year warranty against 1 year. The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat keeps up on the basics, with temperature and humidity sensing, automatic scheduling with suggestions, a system health monitor, temperature alerts and full Home Assistant support, but it runs on 2.4 GHz Wi-Fi only and supports no room sensors. Choose the Google Nest Learning Thermostat (4th gen) to balance rooms and join an Apple or Matter home, and the Honeywell for a lower cost, touch-controlled upgrade.
vs
Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat
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$123.49
$179.99

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FeatureGoogle Nest Learning Thermostat (4th gen)Honeywell Home RTH9585WF Wi-Fi Smart Color ThermostatWinner
Price$220.00$123.49Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat
Rating4.44.3Google Nest Learning Thermostat (4th gen)
Warranty2 years1 yearGoogle Nest Learning Thermostat (4th gen)
Included accessoriesTrim Plate, Temperature SensorNoneGoogle Nest Learning Thermostat (4th gen)
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Bluetooth2.4 GHz WiFiGoogle Nest Learning Thermostat (4th gen)
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter, External Temperature SensorsGoogle Home, Alexa, Samsung SmartThings, Home AssistantGoogle Nest Learning Thermostat (4th gen)
SensorsProximity / Motion, Occupancy, Temperature, Humidity, Ambient LightTemperature, HumidityGoogle Nest Learning Thermostat (4th gen)
ScreenYESYESTie
AlertsTemperature AlertsTemperature AlertsTie
Energy SavingsYESYESTie
System Health MonitorYESYESTie
Voice ControlYESYESTie

What the differences mean

Room sensor

The Google Nest Learning Thermostat (4th gen) includes a remote temperature sensor, so it can heat or cool to the room you choose at each time of day. The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat supports no external sensors and reads only the wall it hangs on.

Platforms

The Google Nest Learning Thermostat (4th gen) works with Google Home, Alexa, Apple HomeKit, SmartThings and Matter, with partial Home Assistant support. The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat works with Google Home, Alexa, SmartThings and fully with Home Assistant, but not with Apple HomeKit or Matter.

Controls

The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat has a colour touchscreen. The Google Nest Learning Thermostat (4th gen) has a 2.7 inch colour display controlled by its dial rather than by touch.

Presence sensing

The Google Nest Learning Thermostat (4th gen) senses motion, occupancy and ambient light, which feed its away mode. The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat has no presence sensing.

Wi-Fi and warranty

The Google Nest Learning Thermostat (4th gen) connects on 2.4 or 5 GHz Wi-Fi and Bluetooth and carries a 2 year warranty. The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat is 2.4 GHz only, with a 1 year warranty.

Which one to buy if

What owners say

Owners of both thermostats like controlling the house from their phone and a colour display on the wall. Google Nest Learning Thermostat (4th gen) owners single out the learning itself, heating and cooling that follow them home and ease off when the house is empty, the included sensor for balancing bedrooms and a quick install; their warnings are that it can refuse to run without a C-wire where the 3rd gen worked, that it is managed only in the Google Home app and that it is not for UK or EU systems. Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat owners, several of them replacing Nests that failed, praise reliability and the customisable screen with outdoor readings, and complain that remote control depends on Resideo's servers, which go down, that the app is effectively US only and that the one-degree swing is fixed.

Frequently Asked Questions

Which is better overall: Google Nest Learning Thermostat (4th gen) or Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat?

The Google Nest Learning Thermostat (4th gen). It includes a room sensor, detects occupancy, supports Matter and Apple HomeKit and has a longer warranty. The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat is the lower priced choice with a touchscreen.

Does the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat work with Google Home?

Yes. It works with Google Home, Alexa, SmartThings and Home Assistant. The Google Nest Learning Thermostat (4th gen) works with Google Home too and adds Apple HomeKit and Matter.

Is there a Honeywell thermostat like the Nest?

The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat shares the automatic scheduling, energy reports, colour display and voice control of the Google Nest Learning Thermostat (4th gen), but it has no room sensor, no occupancy sensing and no Matter or Apple HomeKit support.

What is the biggest difference between the two?

Room sensing. The Google Nest Learning Thermostat (4th gen) includes a remote temperature sensor and detects occupancy, while the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat reads only the spot where it is installed.

Who should buy the Google Nest Learning Thermostat (4th gen)?

Homes with uneven rooms, households on Apple Home or Matter, and anyone who wants a thermostat that adjusts itself around when people are home.

Who should buy the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat?

North American homes that want an affordable colour touchscreen thermostat with Alexa, Google Home and full Home Assistant support, and do not need room sensors.

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