Honeywell RTH9585WF Thermostat Review


The ability to regulate the indoor temperatures is mandatory in every home and this can only be achieved with a decent thermostat. Any other device and your home might become inhabitable on hot summers or cold winters.

If you are looking for simple and powerful, yet budget-friendly thermostat, then the Honeywell RTH9585WF wi-fi smart thermostat will make a perfect choice.  Besides being able to control your heating and cooling systems seamlessly, this unit is easy to install and allows you to create your own 7-day temperature schedule!

The Honeywell smart Wi-Fi RTH9585WF isn’t small like the Nest thermostat and it doesn’t come with room sensors like the Ecobee thermostats, but it offers great value at its price. It has a large screen that is easy to read and can be controlled remotely via the Honeywell Android, iOS, or Web app.

Impressive design

The Honeywell smart Wi-Fi RTH9585WF comes in a sleek and compact design which wouldn’t mess up your home décor. It doesn’t look as good as the Ecobee 4, but if you value functionality over design, then this would be the best choice.

From the device’s home screen, you can view the time and date as well as the temperature and humidity readings in your home and outdoors. Adjusting the settings is easy since all you need is to tap the arrows on the screen.

One fancy aspect of the RTH9585WF’s design is the big programmable color touch screen which you can customize to match your home’s interior décor -which is one of its many selling points. Color change also makes it easy to select the perfect background that will allow you to read temperature settings easily from a distance. To change the background color, you can use the device’s color scheme or create your own scheme from its custom menu.

Weather forecast

This is one of the things that you will enjoy when you get the Honeywell RTH9585WF smart Wi-Fi 7-day thermostat for your home. With its external wired sensor, this monster tells the outdoor weather at all times and this can be really helpful. With an understanding of the weather outdoors, you will be able to set your indoor temperatures at the right level so as to reduce your energy costs.

This feature will also help you plan what to wear when heading out and this way you will not get too hot as a result of wearing heavy clothes when it is expected to be hot and catching a cold when you dress lightly and it is expected to rain. Other than forecasting the weather and the temperature, the Honeywell RTH9585WF is also able to tell the humidity levels outside and within your home and is quite helpful when you are planning your day.

Excellent performance

When it comes to smart thermostats, you would expect that they automatically adjusted the temperature based on your settings and the Honeywell RTH9585WF smart Wi-Fi 7-day thermostat does just that.

Designed with smart-response technology for precise temperature control, this thermostat adjusts the temperature in your home based on your heating and cooling cycle and its scheduling mechanism works perfectly without any hiccups.

When compared to other thermostats of its kind, the Honeywell thermostat is more efficient and intuitive and this will help you save money as your energy costs will not be high. Its performance when it came to reading the outdoor temperature was not that great but considering that this is a feature that is not offered by other thermostats, this should not dissuade you from getting this thermostat for your indoor temperature control needs.


  • Flexible programming options.
  • Customizable touchscreen.
  • Easy to use.
  • Simple installation.
  • Cost-effective and provides real value for money


  • You need a “C” wire to power it up


How is the Honeywell RTH9585WF wiring diagram?

The Honeywell thermostat has been wired just as other thermostats only that you will need common or “C” wire to power the model. You can still power it without the “C” wire but you will have to get creative with your connections. The company doesn’t warn buyers about this issue in advance and this can cause a lot of frustration. To learn more about wiring, we have created a comprehensive guide for how to install a thermostat with a C-wire.

How is the Honeywell RTH9585WF installation?

Installing the Honeywell RTH9585WF is straightforward and this is what you need to do to install it. Attach the base plate of the thermostat to the wall and connect its wires to their ports. If you have a “C” wire connect it to the thermostat to power it up.

How to lock the Honeywell RTH9585WF thermostat?

To lock this thermostat all you have to do is to tap the menu option on the home screen and navigate to the security settings. From the security settings, click on the “Change Lock Mode” and tap the “Fully Locked” button.

How to set time on the Honeywell RTH9585WF?

To set time on the Honeywell thermostat, tap the time/date button and click “set time”. Use the arrows to adjust the time and click the “Done” button to finish the process.

Honeywell RTH9585WF vs Nest?

Nest thermostats do not require a “C” wire to power them and this makes it easy to use them. The Nest Learning Thermostat comes with a 2-year warranty while the warranty for Honeywell’s Wi-Fi thermostat is only one year.

What is the difference between Honeywell RTH9585WF AND RTH9580WF?

These RTH9585WF is an updated version of the RTH9580WF. It comes with more features and at a lower costs, providing real value for money.


The Honeywell smart Wi-Fi thermostat checks most of the boxes when it comes to indoor temperature regulation and we recommend it to anyone willing to spend slightly over $100 on a thermostat. It automatically adjusts the temperature in your home or business based on preset preferences, providing an automatic central place to manage your heating and cooling systems with little effort. Its only drawback is that you will need a “C” wire to power it up but other than that, this thermostat is a great addition to your home or business.

Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy...
  • Compatible with: Amazon Alexa, SmartThings, Google Home, IFTTT
  • Check to see If your new thermostat qualifies for a utility rebate; Auto-updates...
  • Customizable touchscreen in full Color with easy to read numbers and text, view...