Thermostats · Head to head

Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat vs Honeywell Home T9 Smart Thermostat

Full Smart Thermostats comparison in 2026

Updated August 2026
Data from Amazon and official Honeywell Home site.
2026 verdict
Honeywell Home T9 Smart Thermostat has the better all-around case than Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat in 2026, starting with warranty, included accessories, and integrations. It wins the broader comparison through warranty, included accessories, and integrations, while sensors and speaker help confirm the result. Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat remains a niche alternative if price matters more than the rest of the comparison. That is why the final call still favors Honeywell Home T9 Smart Thermostat.
vs
FeatureHoneywell Home RTH9585WF Wi-Fi Smart Color ThermostatHoneywell Home T9 Smart ThermostatWinner
Price$127.99$214.99Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat
Warranty1 year2 yearsHoneywell Home T9 Smart Thermostat
Included accessoriesNoneTemperature SensorHoneywell Home T9 Smart Thermostat
IntegrationsGoogle Home, Alexa, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, External Temperature SensorsHoneywell Home T9 Smart Thermostat
SensorsTemperature, HumidityProximity / Motion, Occupancy, Temperature, HumidityHoneywell Home T9 Smart Thermostat
SpeakerNOYESHoneywell Home T9 Smart Thermostat
Rating4.34.3Tie
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie
ScreenYESYESTie
AlertsTemperature AlertsTemperature AlertsTie
Energy SavingsYESYESTie
System Health MonitorYESYESTie

Frequently Asked Questions

Which is better overall: Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat or Honeywell Home T9 Smart Thermostat?

Honeywell Home T9 Smart Thermostat has the stronger overall profile in this comparison, especially for warranty, included accessories, and integrations.

What is the biggest difference between Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat and Honeywell Home T9 Smart Thermostat?

Price is one of the clearest differences: Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat lists $127.99, while Honeywell Home T9 Smart Thermostat lists $214.99.

Which one looks better on price?

Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat is listed at $127.99, while Honeywell Home T9 Smart Thermostat is listed at $214.99. Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat (better spec).

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

Choose Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat if your priority is price and that matters more than warranty.

Who should buy Honeywell Home T9 Smart Thermostat?

Choose Honeywell Home T9 Smart Thermostat if your priority is warranty and included accessories and that matters more than price.

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