The 10 Best Wifi Thermostats

Updated October 25, 2017 by Lydia Chipman

10 Best Wifi Thermostats
Best High-End
Best Mid-Range
Best Inexpensive
We spent 42 hours on research, videography, and editing, to review the top selections for this wiki. If anything should be a Goldilocks zone, it's your home. Fortunately, smart thermostats have made it easier than ever to keep your surroundings not too hot, not too cold, but just right, saving time, money and energy in the process. Choose one of these sophisticated and intelligent WiFi climate control devices to conveniently maintain the perfect ambient temperature year round. When users buy our independently chosen editorial picks, we may earn commissions to support our work. Skip to the best wifi thermostat on Amazon.

10. Pro1 T855i

The Pro1 T855i is a model of simplicity. While its hallmark is easy installation, setup, and usage, it also includes advanced features, like smartphone app integration. However, fans of smarthome technology should note that it doesn't work with Amazon Alexa.
  • android and ios compatible
  • works with zoned systems
  • not the cheapest option
Brand PRO1 IAQ
Model T855i
Weight 11.2 ounces
Rating 4.1 / 5.0

9. CyberStat CY1101WF

For a straightforward option that won't break the bank, the CyberStat CY1101WF is easy to program and use, offering reliable performance and versatility via one or more connected devices, but it doesn't integrate with other home automation systems.
  • has manual temporary overrides
  • e-mail alerts of high and low temps
  • no native apps for android
Brand Motison
Model CY1201WF
Weight 7 ounces
Rating 3.6 / 5.0

8. ADC-T2000

The ADC-T2000 with Z-wave technology gives you remote access and control of your home temperature with an account, plus it allows you to set up custom schedules and location-based automation to turn on automatically when you're driving home from work.
  • accurate temp setting and control
  • no onboard or touchscreen controls
  • display may be difficult to read
Model ADC-T2000
Weight 1.2 pounds
Rating 4.1 / 5.0

7. Honeywell Lyric T5

Using geofencing to automate settings for when you're at home or away, the Honeywell Lyric T5 works with app integrations for Siri and Alexa to deliver customized temperature control and notifications for a moderate price, but it won't work with other popular systems.
  • adaptive temperature recovery system
  • push notifications via smart alerts
  • does not display weather conditions
Brand Honeywell
Model RCHT8610WF2006/W
Weight 13.6 ounces
Rating 4.1 / 5.0

6. Trane Z-wave 14942771

Produced by one of the most trusted names in HVAC systems, the inexpensive Trane Z-wave 14942771 can be operated by remote control, via app integrations for iOS or Android phones, and with other home automation systems to control temperatures and optimize energy usage.
  • can be installed in under 30 minutes
  • works with nexia and amazon alexa
  • easy web interface programming
Brand Trane
Model 14942771
Weight 10.4 ounces
Rating 4.4 / 5.0

5. First Alert THERM-500

The First Alert THERM-500 is extremely customizable to blend in with your decor and keep your surroundings comfortable without causing programming headaches. You can choose from over 100 screen backgrounds, and it also works with Amazon Alexa.
  • monitors and reports energy usage
  • very bright screen for easy reading
  • responsive onscreen menu
Brand First Alert
Model THERM-500
Weight 1.6 pounds
Rating 3.9 / 5.0

4. Honeywell RTH9580

The Honeywell RTH9580 features Smart Response technology that learns your preferences to optimize settings, a customizable multicolor touchscreen interface, and Total Connect Comfort Service for remote operation from your computer, tablet or smartphone.
  • ios and android compatible
  • displays current weather conditions
  • voice control using amazon alexa
Brand Honeywell
Model RTH9580WF1005/W1
Weight 1.2 pounds
Rating 4.2 / 5.0

3. Sensi Smart by Emerson

Compatible with most HVAC systems, the Sensi Smart by Emerson connects seamlessly to your home network and allows you to control temperatures from anywhere via voice commands and with free smartphone app integration for Android or iOS devices.
  • installation only takes 15 minutes
  • compatible with amazon alexa
  • color-coded touchscreen interface
Brand Emerson Thermostats
Model 1F86U-42WF
Weight 1.7 pounds
Rating 4.7 / 5.0

2. Ecobee 3

For homes with complex layouts and uneven temperature control, the Ecobee 3 uses remote sensors to monitor temperatures in multiple locations and adjusts settings accordingly, keeping you cool in summer and warm in winter while saving an average of 23% on energy bills.
  • works with up to 32 add-on sensors
  • adjusts for room occupancy
  • free software upgrades
Brand ecobee
Model EB-STATe3-O2
Weight 1.4 pounds
Rating 4.7 / 5.0

1. Nest Learning 3rd Generation

The Nest Learning 3rd Generation has a sleek minimalist look and intelligent design that automatically detects your personal schedule and usage habits, saving an average of 15% on electricity costs without the time and effort of manually entering schedules.
  • monitors and tracks energy usage
  • works with amazon alexa
  • menu supports multiple languages
Brand Nest
Model T3007ES
Weight 1.7 pounds
Rating 4.9 / 5.0

Expanding Technologies

If you've ever exited your car after a long drive on a cool evening and sat outside in it for a moment before gathering up your things and heading into your home, you might have noticed a sound like light metal beads popping up gently into the underside of your hood. That sound is actually produced by a variety of metal engine components cooling off, and shrinking as they do so.

You see, on that long drive, those same components expanded as the engine heated up, and now that you've come to a stop and all that steel has begun to adjust to the crisp night air, it gets smaller. That very property, called thermal expansion, is the driving force behind the traditional thermostat: as a piece of metal is heated or cooled, it will connect or disconnect a circuit, causing either your heater or air conditioner to activate until the temperature in the room was such that the metal returned to its former size. Similar devices were developed using gas, which expands and contracts faster then metal, resulting in a more accurate response.

Digital thermostats, on the other hand, which form the foundation of the Wi-Fi options on our list, use a slightly more complex mechanism, albiet one likewise sensitive to ambient heat and cold, called a thermistor. Depending on its temperature, a thermistor puts out a very specific electrical resistance that, when translated by a microcontroller, becomes a corresponding temperature readout on your thermostat's screen.

With that information at your fingertips, you can program your thermostat to activate either of your systems whenever the temperature gets above or below a certain point, as measured by the particular resistance put out by the thermistor. You can even integrate an electrical thermostat's clock function into the equation to create program cycles based on anticipated temperature fluctuations in the weather, or on schedules of occupancy, potentially saving you a boatload of money you'd otherwise spend heating or cooling an empty house.

All that an electronic thermostat has to do from there to become a Wi-Fi thermostat is to add the hardware capable of communicating that information to your smartphone or computer. After that, you can sync it up with your home network and control your temperature from anywhere in the world.

Everything Is Under Control

You might have noticed that a few of the larger tech companies in the world have been making forays into our home lives in the guise of digital personal assistants. Siri, the Apple iPhone personality, was certainly one of the first to hit the scene with any kind of splash, but as her power to control certain aspects of your life and home increases, so, too, does her competition. Her most effective competitors are Amazon's Alexa, Google Home, and the Nexia system by drilling giant Ingersoll Rand.

As you peruse the available Wi-Fi thermostats that we've evaluated, you'll see that some are compatible with one or more of these home automation systems, some are more interested in merely linking to your mobile devices, and others are actually part of their own brand of home control. If the thought of adding security cameras, humidity control, entertainment systems, and more to a single command center appeals to you, then you'll have to decide on which system you plan to place your chips. That, alone, will narrow down our list by a good degree.

After that, questions of aesthetics abound. Some of the thermostats on our list are clearly trying to look like something more suitable for a contemporary home than like any other electronic thermostat you might have seen debut in the late 1980s. Taking into account the style of your house, especially the room in which your thermostat will be installed, will guide you further on your quest toward the perfect selection.

Warm And Toast History

Nobody likes to shovel coal; it's heavy, it's dirty, and it smells strange. There's a reason bad kids get coal from Santa. There was a time, however, when we more directly relied on it than we do now. I don't mean to undercut the significance of our reliance on coal for our boundless consumption of coal-fired electricity; it's just that we all used to have to actually handle the stuff if we wanted to regulate the heat in our homes. We had to trudge miserably down into the basement and add some coal to a complicated furnace adorned with mysterious valves, drafts, and dampers, whereas now we simply click a few buttons.

This is largely thanks to Andrew Ure, a Scottish chemist who hated coal even more than Al Gore, and who invented the first bi-metallic thermostat back in 1830. The invention took a long time and a chronically chilly professor from Wisconsin to gain popularity, but by the turn of the century, thermostats were in heavy use for a variety of industrial applications, and–slowly, but surely–they began to filter into people's homes.

In the 1980s, everything that could be converted from an analog mechanism to a digital component was so converted, and the thermostat was among the most welcome of adjustments. Bi-metallic and gas-bellows units had a tendency to lag and provide rather inaccurate readings, but their digital counterparts proved to be much more precise. They also offered flexible and exact programming options to consumers for the first time.

Around the same moment, a revolution in home computing was underway that would eventually lead to the current state of the global internet and its individually housed wireless hubs. It was a no-brainer for manufacturers to jump on the app bandwagon that exploded out of that revolution toward the end of the oughts, and Wi-Fi thermostats have only become more useful, and more deeply integrated into an entire home's automation, ever since.

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Last updated on October 25, 2017 by Lydia Chipman

An itinerant wordsmith with an alphabet-soup of credentials to her name, Lydia has turned iconoclasm into a livelihood of sorts, throwing herself into a broad constellation of interests. From antithetical cultural analysis to interdisciplinary combat training, she bears the scars and stripes of an uncommon diversity of experience. Reading, biking and exploring are favorite pastimes, but – with the notable exceptions of joining a religious order (not on speaking terms with a higher power) and becoming an artist (can’t even draw a respectable stick-figure) – she’d try almost anything once.

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