The Best Smart Thermostats of 2020

These devices can deliver better performance, cheaper bills, and less waste than your current thermostat. And they look good too.
  • Best Overall
    Built-in Alexa
    Extra sensors
  • Best for Scheduling
    Auto-scheduling
    Compatible with other Nest products
  • Best for Budget
    Affordable price tag
    Great compatibility
  • Best for High-Voltage Systems
    Works with baseboard heating
    Great compatibility

There is literally (and by literally we mean figuratively) nothing worse than coming home after a long day of work to find your home freezing (or boiling). It can take hours to warm up (or cool down) and by then, you’ll probably be in bed anyways.

If you’re having issues with unreliable climate control or you just want to increase the IQ of your automated home, you should probably invest in a smart thermostat.

Smart thermostats can anticipate your arrival and adjust the climate accordingly. They can sense humidity and movement. They can connect to your other smart devices, like Amazon Echo and Google Home. Best of all, these devices will make your home more efficient, which is good for your wallet and for the environment.

Here’s a quick look at what to consider when you’re buying a smart thermostat, followed by a review of our favorite smart thermostats of 2019.

Features to look for in your smart thermostat

  • Sensors: Every smart thermostat will have a temperature sensor. But the more advanced devices will also have humidity, motion, and even ambient light sensors.
  • Zones: If you’re heating or cooling a large home (or multiple, smaller units), you may want to have varying temperatures in different zones. Some smart thermostats will support multiple zones, but you may have to buy additional components or devices.
  • Geofencing: One of the major advantages that smart thermostats have over conventional ones is that they can anticipate your arrival and adjust the climate accordingly. One of the ways they can track you is called geofencing, and it’s essentially enabling location services on your mobile phone.
  • Compatibility: Most smart thermostats will work with most HVAC systems, but make sure you read the fine print before you buy to see if the device you want is compatible with your home.
  • Smart home integration: If you’ve already got smart appliances or home security systems in your home, then you probably want your thermostat to integrate with them. Be sure to check if it’s compatible.
  • Voice assistant: “Alexa, turn heat up to 72 degrees.” Doesn’t that sound like a nice way to control the climate? Just be aware: even devices that can integrate with voice assistants, like the Amazon Echo, don’t necessarily have voice command capability built in.

Installation

All of the smart thermostats on this list are designed for easy self-installation. That’s awesome because you get to save money and feel like a home-improvement boss! In most cases, it should only take you 30 to 60 minutes to get the job done.

Some devices require a C-wire (an extra electricity supply wire) to install. But none of the thermostats reviewed here do.

If you’d prefer not to deal with the wiring yourself, you can hire a professional (which will put you out anywhere from about $100 to 300).

ProductEcobee SmartThermostat with Voice ControlNest Learning Thermostat (3rd Generation)Honeywell T5+ Smart ThermostatMysa Smart Thermostat
Price*$229.95$249$149.99$139
HVAC compatibilityGas
Oil
Electric
Conventional
Heat pump
Boilers
Dual fuel systems
Gas
Electric
Forced air
Heat pump
Radiant
Oil
Hot water
Solar
Geothermal
Gas
Oil
Forced air
Heat pumps
Hot water
Electric baseboard
Fan-forced
Self-contained hydronic baseboard
In-ceiling radiant heaters
Supports multiple zonesYesYesNoYes
SensorsTemperature
Humidity
Occupancy
Temperature
Humidity
Occupancy
Ambient light
TemperatureTemperature
Humidity
Geofencing YesYesYesYes
Warranty3 years 2 years1 year 2 years
Smart home integration Apple HomeKit
Amazon Echo
IFTTT
Wink
Samsung SmartThings
Amazon Echo
Google Home
IFTTT
Apple HomeKit
Amazon Echo
Google Home
Apple HomeKit
Amazon Echo
Google Home
IFTTT
Samsung SmartThings
Built-in voice assistant Alexa NoneNoneNone
More info View on AmazonView on Amazon View on AmazonView on Amazon

Amazon.com List Prices (as of 12/10/19 4:24 MST).

Ecobee SmartThermostat with Voice Control: Best overall

It’s like a thermostat, digital assistant, and smart speaker put together into a sleek, smart hockey puck.

Ecobee SmartThermostat with Voice Control tech specs

  • 3.5 in., 480 x 320 pixel color touch display
  • Compatible with most HVAC systems
  • Compatible with Apple HomeKit, Amazon Echo, IFTTT, Wink, and Samsung SmartThings
  • Supports geofencing
  • Controls up to 32 zones
  • Quad-core processor
  • Dual-band Wi-Fi
  • Alexa built-in
  • Bluetooth enabled (can play music itself or hook to speaker)
  • One SmartSensor included
  • 3-year limited warranty

Why we chose the Ecobee SmartThermostat with Voice Control

Sure, your current thermostat might keep your living room or hallway climate controlled, but can it have multiple sensors to ensure that the kids’ bedroom isn’t freezing? Can it track your energy usage? Can it play Spotify? We didn’t think so.

Let us introduce you to the Ecobee SmartThermostat with Voice Control.

This thermostat sets a new bar for automated temperature control devices. It’s not just a step above the Ecobee4, but it even outshines its main competitor, the Google Nest Learning Thermostat, by including remote sensors and being more compatible with third-party devices.

Here’s a breakdown of the Ecobee’s impressive features.

Features

Design

The Ecobee Smart Thermostat with Voice Control looks like a high-tech hockey puck. It sports a crystal clear touch screen, two digital microphones, and a surprisingly powerful speaker.

Despite its small size, the device packs 12 terminals into its back plate that can connect to heating, air conditioning, humidifiers, HVAC accessories, and more. On the inside, the Ecobee contains dual-band Wi-Fi technology so it can connect to 2.4GHz or 5GHz networks.

Sensors

The Ecobee has two main components: the thermostat and the SmartSensors. The thermostat itself can read temperature, humidity, proximity, and occupancy. It will be able to tell when someone is in the room and can use geofencing to track when you’re coming home.

The other component is a remote sensor (or multiple sensors) that you can put anywhere in your house. These read temperature only and help ensure that your whole home is climate-controlled accurately. You can purchase extra sensors on Amazon.

Automated home integration

The Ecobee SmartThermostat with Voice Control works with a ton of other smart devices and home automation systems, including Apple HomeKit, Amazon Echo, IFTTT, Wink, and Samsung SmartThings.

Info Box icon
Want to learn more about home automation?
Here’s a quick primer on home automation. You can see some examples of how automated home devices can integrate to work together in this article (which includes examples for both the Ecobee and Nest thermostats).

Because of this thermostat’s internal microphones and powerful speaker, you can use it much like you would an Amazon Echo. It can stream Pandora, make a phone call, and tell you the weather outside (but it won’t walk your dog—you’ll have to wait for the next generation of smart thermostats for that).

Controls

You can control the Ecobee with your voice, the touchscreen on the device, or with a mobile app. The app is probably the easiest way to enable features, like Smart Home/Away, or to set up a schedule.

You can also check your Home IQ, which shows you efficiency reports, historical data, and how outside weather changes your energy use. Paying attention to this data can help you be more green (and save green on your utility bills).

Pros

  • Built-in Alexa and voice controls
  • Extra sensors
  • Great compatibility
  • Plenty of energy-saving features

Cons

  • More expensive than other smart thermostats

Nest Learning Thermostat (3rd Generation): Best for scheduling

The smartest of the smart thermostats is loaded with awesome features.

Nest Learning Thermostat tech specs

  • 3.3 in., 480 x 480 pixel display
  • Compatible with most HVAC systems
  • Compatible with Amazon Echo, Google Home, and IFTTT systems
  • Supports geofencing
  • Supports multiple zones (if you have multiple Nest thermostats)
  • 2.4GHz or 5GHz Wi-Fi connectability
  • Bluetooth enabled
  • 2-year limited warranty

Why we chose the Nest Learning Thermostat

There are plenty of smart thermostats on the market these days. But there’s “pre-program temperature for seven days” smart and then there’s “learn your daily habits and anticipate your temperature needs” smart. The Nest Learning Thermostat is in the latter category.

This device can track your thermostat use to give you a personalized schedule, so you don’t even have to worry about programming. It’s perfect for those who want the convenience of a Wi-Fi thermostat without the chore of learning a whole new control system.

Features

Design

The Nest Learning Thermostat looks like a small digital clock. It’s not quite as sleek as the Ecobee, and it lacks a touch screen, but it does come in multiple colors.

Under the hood are ten temperature sensors and other sensors for humidity, ambient light, and motion. It’s also equipped with Bluetooth radio, 512 MB of memory, and wiring that will hook it up to most HVAC systems.

Auto-scheduling

The Nest Learning Thermostat spends the first week after it’s set up learning your normal daily climate control schedule. It uses that information to create a schedule tailor-fit to your needs.

You can make adjustments to this auto-schedule as time goes on—or ditch it altogether—but it saves you the time and hassle of making a schedule from scratch.

Automated home integration

The Nest Learning Thermostat obviously works with other Nest devices, like the Nest Home Security System and the Nest Protect fire alarm. But it also works with third-party devices like WeMo switches and Haiku fans.

You can control the Nest thermostat using Alexa, but it doesn’t have built-in voice controls so you’ll you need to use it in combination with another Alexa device, like a Google Home.

Controls

You can control the thermostat using its physical interface (you turn and click a wheel on the outside of the device to select options), but it’s easier to use the mobile app.

On the app you can activate features like Furnace Heads-Up, which tells you how well your heat system is functioning. You can also check the weather, see your energy usage history, set carbon monoxide (CO) thresholds, and set air filter replacement reminders.

Pros

  • Auto-scheduling technology
  • Energy-saving features
  • Compatible with other Nest products

Cons

  • High price tag
  • No remote sensors

Honeywell T5+ Smart Thermostat: Best for budget

A surprisingly powerful smart thermostat that won’t dent your bank account (too much).

Honeywell T5+ Smart Thermostat tech specs

  • 3.5 x 3.5 in., touchscreen display
  • Compatible with most HVAC systems
  • Compatible with Apple HomeKit, Amazon Echo, Google Home
  • Supports geofencing
  • 2.4GHz W-Fi connectability
  • 1-year limited warranty

Why we chose the Honeywell T5+ Smart Thermostat

We all deserve to come home at the end of the day to a cozy climate-controlled space. But not all of us can (or want to) throw down the price of our car payment (or a new Xbox Project Scarlett) to get a smart thermostat device. Thankfully, there’s the Honeywell T5+.

This is the only halfway-decent smart thermostat that is regularly priced under $100. It may not have all of the features and smart home integration as our front-runners, but it will work well with your other budget automated home devices.

Features

Design

The Honeywell T5+ is, unlike the Ecobee and Nest thermostats, not round. It’s square. (Way to be different, T5+!) Its touchscreen display is monochrome rather than color, but it still looks pretty good compared to most thermostats.

This device has an internal temperature sensor and will hook up to most HVAC systems. It doesn’t have motion or humidity sensors, so you’ll have to rely on other devices (like the Canary All-In-One Security Device) for that.

Auto-scheduling

The T5+ may not be as smart as the Nest Learning Thermostat, but it can use its temperature tracking tools and geofencing technology to learn your daily habits and create a tailor-made schedule for your heating and cooling.

This Honeywell Wi-Fi thermostat can also alert you to irregular temperatures in your home and let you know when it’s time to change your filters.

Automated home integration

Whether your digital friend is named Alexa, Siri, or Google Assistant (middle school must have been rough with a name like that), you can integrate the Honeywell T5+ into your automated home system.

But, unfortunately, the T5+ is not compatible with IFTTT devices, which could be a deal-breaker for some.

Controls

You can use the touchscreen on the T5+ to adjust most of the basic functions, like temperature, schedule, and Wi-Fi settings. But it’s probably easier and more useful to use the mobile app.

On the app, you can set up geofencing, check the weather forecast, change the temperature of your home, and even control other Honeywell smart home products that you have hooked up.

Pros

  • Affordable price tag
  • Auto-scheduling technology
  • Energy-saving features
  • Compatible with Alexa, Siri, and Google Assistant voice commands

Cons

  • No humidity sensors
  • No usage history records
  • Short warranty period

Mysa Smart Thermostat: Best for high-voltage systems

Finally, smart climate control for those with baseboard heaters.

Mysa Smart Thermostat tech specs

  • 5.7 x 3.8 in. touch display
  • Compatible with high-voltage heating systems
  • Compatible with Apple HomeKit, Amazon Echo, Google Home, IFTTT, and Samsung SmartThings
  • Supports geofencing
  • 2.4GHz W-Fi connectability
  • 2-year limited warranty

Why we chose the Mysa Smart Thermostat

For many years, those with baseboard heating systems were being left out of the smart thermostat revolution. But now, thanks to the Mysa Smart Thermostat, you no longer need to fiddle around with a clunky, inaccurate, and decidedly not-smart interface.

This Wi-Fi thermostat is not just an afterthought for those with high-voltage systems. It’s an impressive smart thermostat in its own right, with cutting-edge temperature and humidity control and great smart home integration.

Features

Design

The Mysa Smart Thermostat may be the most elegant-looking device on this list. Its soft white finish and simple temperature display allow it to seamlessly blend into most living areas.

But this elegance does come with a drawback: most of the thermostat’s functions must be controlled through the mobile app.

HVAC and automated home compatibility

The Mysa Smart Thermostat can connect to 110, 120, 208, 220, and 240 volt line heating systems, and it can support up to 3800 watts. (That’s about four times as much power as a window AC unit!)

The bad news is that the Mysa Smart Thermostat is not able to control a conventional HVAC system. So, if you happen to have baseboard and forced air heating systems in your house, then you’ll need to get another smart thermostat to control the forced air system.

The good news is, the Mysa Smart Thermostat has the best smart home integration out of all the devices reviewed here, which means it should integrate well with just about any other thermostat, whether it’s the Ecobee, Nest, or something else.

Controls

As we mentioned above, the Mysa Smart Thermostat’s built-in interface can only control the temperature. If you want to do anything more complicated than turn the heat up a few degrees, you’ll need to use the mobile app.

With the app, you can set a custom schedule, track humidity, or turn on the “eco mode” or vacation mode. You can also set up geofencing, which will allow the thermostat to track your comings and goings to offer more efficient climate control. (Kind of creepy, but very useful.)

Pros

  • Works with high-voltage systems
  • Beautiful design
  • Energy-saving features
  • Compatible with most automated home systems

Cons

  • No motion sensors

Recap

Buying a smart thermostat can save you time and money on your energy bill. Perhaps most importantly, it can help to cut your use of non-renewable resources, like oil and gas. Plus, you get a cool, Star Trek–looking device on your wall.

Here’s a quick review of our picks for the best smart thermostats.

Best for most: The Ecobee SmartThermostat with Voice Control is basically a thermostat, digital assistant, and smart speaker all rolled into one. It’ll integrate with most HVAC and home automation systems so the only downside is that big price tag.

Best for scheduling: The Nest Learning Thermostat (3rd Generation) is the smartest device on this list. It’ll learn your habits and create an ideal schedule for comfort and energy efficiency. But it doesn’t score quite as high as the Ecobee on compatibility and features.

Best for budget: The Honeywell T5+ Smart Thermostat is a perfectly decent smart thermostat that will cost you less than $100. That’s a screamin’ deal for a device with auto-scheduling and a wide compatibility with automated home systems.

Best for high-voltage systems: The Mysa Smart Thermostat is the only device on this list that can handle baseboard heating and other high-voltage systems. Its elegant display, great compatibility, and cheap price tag make it a steal of a deal.

You really can’t go wrong with any of these smart home devices, but everyone’s needs are different, so we’d love to know what you think. What’s the best smart thermostat on the market? Shout it out in the comments section below.

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