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16 smart thermostats to regulate your home's heat and AC

Not sold on a smart thermostat? Scroll through your options here.

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meganwollertonportraits0719-23a

Megan Wollerton

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1 of 17 John Kim/CNET

Here's a running list of the smart thermostats we've reviewed to date, regularly updated as we review new products.

While they have different designs and rely on different smart features, they have one thing in common: voice control.

Read on to find out more about the smart thermostats available today.

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2 of 17 Chris Monroe/CNET

Amazon Smart Thermostat

The Amazon Smart Thermostat costs just $60. It has a responsive touch display interface, easy control via the Alexa app -- and the option of voice commands if you have a compatible Alexa smart speaker or display.

It's a well-rounded thermostat that offers an excellent overall value. 

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3 of 17 Chris Monroe/CNET

Ecobee3 Lite Smart Thermostat

Ecobee's Ecobee3 Lite works with a ton of smart home platforms: Amazon Alexa, Apple HomeKit, Samsung SmartThings, Wink and IFTTT.

The Lite model may look like the original Ecobee3, but it doesn't come with a remote sensor for tracking your home and away status.

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4 of 17 Chris Monroe/CNET

Ecobee SmartThermostat with Voice Control

The Ecobee SmartThermostat with Voice Control works with Apple HomeKit, Samsung SmartThings, Wink and IFTTT -- and even has a built-in Alexa speaker. 

It also comes with a remote temperature sensor so you can track the temperature in other rooms. 

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5 of 17 Tyler Lizenby/CNET

Emerson Sensi Wi-Fi Programmable Thermostat

The Emerson Sensi Wi-Fi Programmable Thermostat doesn't have algorithmic learning or standalone presence sensors.

It does, however, work with Alexa, Apple HomeKit, Google Assistant and Wink.

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6 of 17 Tyler Lizenby/CNET

Emerson Sensi Touch Wi-Fi Thermostat

Like the Emerson Sensi thermostat, the Sensi Touch supports Amazon Alexa, Apple HomeKit, Google Assistant and Wink. It also has a touchscreen display and offers geofencing and humidity monitoring. 

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7 of 17 Tyler Lizenby/CNET

Google Nest Learning Thermostat (2015)

The Nest Learning Thermostat uses algorithms to adapt to your daily routine.

Its built-in sensors help detect whether you're home or away and will adjust the temperature automatically.

It also works with Alexa devices and the Google Home speakers.

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8 of 17 Google

Google Nest Thermostat (2020)

The Nest Thermostat is the latest smart thermostat from Google, but this model only costs $130. 

It's available in four colors: sand (white), snow (rose gold), fog (light greenish/blueish-gray) and charcoal (dark gray). Trim kits to cover old paint or holes from previous installations are sold separately for $15. 

This thermostat works with Alexa and Google Assistant.

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9 of 17 Chris Monroe/CNET

Google Nest Thermostat E

The Nest Thermostat E is Google's entry-level smart thermostat. The E has (almost) all of the same features as the Nest Learning Thermostat, but has less expensive hardware components to keep the price down.

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10 of 17 Tyler Lizenby/CNET

Honeywell Lyric Smart Thermostat

The Honeywell Lyric Smart Thermostat can talk with Siri through HomeKit or with Alexa via the Amazon Echo, Echo Dot and Tap speakers.

It also has geofencing capabilities tied to your phone's location. When you leave home, the Lyric should automatically adjust to a more energy-efficient temperature. And when you return, it should autoadjust back to a more comfortable setting.

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11 of 17 Chris Monroe/CNET

Honeywell Lyric T5 Smart Thermostat

Honeywell's Lyric T5 works with HomeKit and Alexa devices, so you have a couple of different ways to adjust this thermostat with your voice.

It also has geofencing capabilities. Simply set a home and away radius and let the Lyric T5 adjust the heat and air conditioning for you.

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12 of 17 Tyler Lizenby/CNET

iDevices Thermostat

iDevices' smart thermostat doesn't have as much connected tech as some of its competitors, but it does work with HomeKit for Siri voice control.

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13 of 17 Chris Monroe/CNET

Johnson Controls GLAS Smart Thermostat

Johnson Controls' $319 GLAS Smart Thermostat has a built-in Microsoft Cortana speaker. Ask Cortana to "change the temperature to 68 degrees" or to "switch from home to away mode." The GLAS also works with Alexa and Google Assistant if you have a compatible smart speaker at home. 

This thermostat has a see-through OLED touchscreen display and gives you air quality reports.  

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14 of 17 Chris Monroe/CNET

Lux Geo Thermostat

The Lux Geo Thermostat has geofencing capabilities for automatic home and away modes.

You can also set a recurring heating and cooling schedule in the related Lux app.

The thermostat's flexible design can be mounted either vertically or horizontally.

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15 of 17 Tyler Lizenby/CNET

Lux Kono Smart Thermostat

The Kono Smart Thermostat by Lux costs $153. It looks neat and works with a variety of smart home platforms, but the dial is difficult to use.

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16 of 17 Chris Monroe/CNET

Resideo Honeywell Home T9 Smart Thermostat

The Resideo Honeywell Home T9 Smart Thermostat costs $200. It comes with a remote temperature, humidity and proximity sensor, as well as geofencing capabilities and support for Alexa and Google Assistant voice commands.

You can buy the T9 as a standalone device (without the remote sensor) for $170 and the sensors, which Resideo calls Smart Room Sensors, for $40 each.

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17 of 17 Chris Monroe/CNET

Wyze Thermostat

Wyze's Thermostat costs $71 and has a decent app and voice control options via Alexa- and Google Assistant-enabled smart speakers and displays. 

The control knob didn't work well, so I wouldn't recommend this model if you plan to adjust the temperature at the thermostat regularly. 

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