Thermostats · Head to head

Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat vs Sensi Smart thermostat

Full Smart Thermostats comparison in 2026

Updated October 2026
Data from Amazon and official Honeywell Home and Sensi sites.
2026 verdict
On price, owner rating and warranty the Sensi Smart thermostat comes out ahead of the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat, even though the Honeywell does more on the wall.
Sensi Smart thermostat
Winner
Sensi Smart thermostat
$98.98$129.9924% OFF

Last recorded price

Buy on Amazon USA
The Sensi carries a three year warranty against one, is the more affordable of the pair and adds automatic scheduling to its manual schedules, with the same Google Home, Alexa, SmartThings and Home Assistant support. The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat is the richer unit, with a customisable full-colour touchscreen, extreme temperature alerts, filter and humidifier pad reminders and monthly energy reports, where the Sensi uses a wide 5 inch monochrome display with physical controls. Both read humidity, use 2.4 GHz Wi-Fi and skip Apple HomeKit, Matter and room sensors. Choose the Sensi Smart thermostat for warranty and value, and the Honeywell for a colour touchscreen and maintenance alerts.
Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat
Honeywell Home
#9 Best Seller in Thermostats

Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat

31% OFF
Prime exclusive deal
$123.49
$179.99

Last recorded price

Buy on Amazon USA

Also sold in packs

  • Pack of 239% OFF$219.98$359.98$109.99 per unitBuy
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FeatureHoneywell Home RTH9585WF Wi-Fi Smart Color ThermostatSensi Smart thermostatWinner
Price$123.49$98.98Sensi Smart thermostat
Rating4.34.4Sensi Smart thermostat
Warranty1 year3 yearsSensi Smart thermostat
AlertsTemperature AlertsNoneHoneywell Home RTH9585WF Wi-Fi Smart Color Thermostat
System Health MonitorYESNOHoneywell Home RTH9585WF Wi-Fi Smart Color Thermostat
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home AssistantGoogle Home, Alexa, Samsung SmartThings, Home AssistantTie
ScreenYESYESTie
SensorsTemperature, HumidityTemperature, HumidityTie
Energy SavingsYESYESTie
Voice ControlYESYESTie
SpeakerNONOTie

What the differences mean

Screen

The Honeywell has a full-colour touchscreen with a customisable background and outdoor readings. The Sensi Smart thermostat has a wider 5 inch monochrome display with physical controls, easy to read but plainer.

Alerts and maintenance

The Honeywell warns about extreme temperatures and reminds you about the filter and humidifier pad. The Sensi Smart thermostat has no alerts or maintenance reminders.

Warranty

Three years on the Sensi Smart thermostat against one year on the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat.

Trim plate

The Sensi Smart thermostat offers a trim plate as an extra-cost accessory; the Honeywell ships none.

Which one to buy if

Winner
Sensi

Sensi Smart thermostat

24% OFF
Prime exclusive deal
$98.98
$129.99

Last recorded price

Buy on Amazon USA
  • + Price: $98.98
  • + Rating: 4.4
  • + Warranty: 3 years
  • - Alerts: None vs Temperature Alerts
  • - System Health Monitor: NO vs YES

What owners say

Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat owners describe it as the thermostat that lasts, often installed after a Nest failed within a year or two and still running in demanding spaces like workshops. They single out the customisable colour screen with outdoor temperature and humidity, and being able to control it from the phone, the web portal or the wall. Their complaints are Resideo's cloud, which can take the app offline while the schedule keeps running, remote features that are effectively limited to the US, a fixed one-degree temperature differential that can short-cycle some systems, and a one year warranty. Sensi Smart thermostat owners describe a guided self-install, physical buttons, easy schedules and fan circulation settings, but note the app's US and Canadian address requirement and occasional Wi-Fi drops.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat
  • Sensi Smart thermostat

Loading price history...

Frequently Asked Questions

Sensi vs Honeywell: which is better, the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat or the Sensi Smart thermostat?

The Sensi Smart thermostat, for its three year warranty, lower price and better owner rating. The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat is better equipped on the wall, with a colour touchscreen, temperature alerts and maintenance reminders.

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

The screen and what it tells you. The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat has a customisable colour touchscreen with alerts and filter reminders, while the Sensi Smart thermostat has a monochrome display and no alerts.

Do the Sensi Smart thermostat and the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat work with Apple Home?

No. Neither the Sensi Smart thermostat nor the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat works with Apple HomeKit. Both support Google Home, Alexa, SmartThings and Home Assistant, and neither supports Matter.

Can the Sensi Smart thermostat or the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat use remote room sensors?

No. Neither the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat nor the Sensi Smart thermostat supports external temperature sensors.

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

Google Home or Alexa households that want a big colour touchscreen, temperature alerts and filter reminders.

Who should buy the Sensi Smart thermostat?

Anyone who wants Google Home, Alexa, SmartThings and Home Assistant support, humidity readings and a three year warranty from a simple thermostat.

Full comparison table

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