Best Smart Thermostats for Alexa: Control The Temperature Of Your House

You can now control your home’s temperature with the smart thermostats available on the market. Whether it is cold or hot outside, you can always be at your comfort with the temperature you want in your house. On top of that, if you own an Alexa-enabled device, this smart thermostat works like a cherry on the cake! So here we have listed some of the best smart thermostats for Alexa.

In this list of top rated Alexa compatible smart thermostats, we have included thermostats from some premium brands like Nest, Honeywell, Ecobee and many more. All you need to do is connect the thermostat to your Alexa device, and you are good to go. Just say “Alexa, set the temperature to 35 degrees,” and Alexa does the work for you. So without any further delay, let explore this list of the best thermostat that works with Amazon Echo devices.

Best Thermostat For Alexa

Best Alexa Compatible Smart Thermostats

Smart Thermostats That Works With Amazon Alexa – Quick Links

Frequently Asked Questions:

  1. Things to know about Smart Thermostats before you buy
  2. What else do smart thermostats work with?
  3. What is ‘C’ wire?
  4. Which thermostat won’t need a C wire?
  5. How to install a Wi-Fi thermostat without C wire?
  6. ecobee4 vs ecobee3 Lite
  7. ecobee4 vs Nest Learning

#1. Ecobee 4 Alexa Enabled Smart Thermostat for Multiple Zone

Ecobee4 Alexa Enabled Smart Thermostat

If you are looking forward to saving annually on your heating and cooling costs, ecobee4 will help you reduce them up to 23%. It is equipped with room sensors that detect the temperature in the room and also its occupancy, i.e., how many people are present. Then, it sets the temperature accordingly.

You can install it on your own and won’t require a C wire for its installation. You can also control it from wherever you are with the ecobee App on your smartphone. As it comes with in-built Alexa, you can give voice commands to add to your comfort. This thermostat also supports Apple Siri for voice-enabled functionalities. It is even compatible with Apple HomeKit and IFTTT.

This thermostat also offers you some smart home integration features like Smart Home/Away, Follow Me, Smart Recovery, HomeIQ, and Alerts/Reminders. Each of these features is unique in their own way and let you be at peace no matter where you are. Its motion activation sensor detects you whenever you pass beneath it and lights up your path in the dark. Moreover, its geo-fencing technology increases or decreases the temperature when you are at home or away. It uses your smartphone location for this feature.

With so many advanced features and intuitive touchscreen, ecobee4 is the best smart thermostat for multiple zones. It works with your complex HVAC system and is compatible with additional devices like humidifiers, dehumidifiers, and more.

Who should buy this?

People who want access to all the advanced features that thermostat offers, and are ready to pay a handsome price for it.

The Verdict

With in-built Alexa, smart home integration, room sensor, occupant-detecting feature, and numerous wiring options, it is the best smart thermostat available on the market.

Price: $199.00
Buy it from Amazon

#2. Ecobee3 Lite Alexa Compatible Smart Thermostat for Multiple Zone

Ecobee3 Lite Alexa Compatible Smart Thermostat

This digital thermostat with a beautiful touchscreen displays the temperature, menu and other settings options. You can personalize your comfort by setting different modes like home, sleep, and save. It is designed to help you save on your heating or cooling bills.

It lets you set a schedule so that you can keep track of the savings you make. Moreover, its HomeIQ function checks your monthly energy conservation and helps you improve it. In case of performance issues, it sends you alerts for maintenance.

This smart thermostat for heat pump offers you the privilege to handle it from wherever you are with the ecobee mobile app. If you desire to maintain your room’s temperature, you need to buy room sensors separately. For voice-enabled functionality, you require connecting it to an Alexa device.

It takes just 30 minutes to install on your own. You get a Power Extender Kit (PEK) to ease the installation process. It does not require C wire. This thermostat works great with Apple HomeKit, Google Assistant, Amazon Alexa, Microsoft Cortana, Samsung SmartThings, Wink, and IFTTT.

Who should buy it?

If you have a simple HVAC system at your house and you do not wish to spend extra for advanced features, ecobee3 Lite is the best choice to make.

The Verdict

With basic functionalities, compact design, and easy installation, ecobee3 Lite is perfect for small apartments.

Price: $138.93
Order it from Amazon

#3. Nest Learning Thermostat (3rd Generation) for Multiple Zone

Nest Learning Thermostat (3rd Generation)

Nest brings a learning thermostat that learns your heating or cooling needs for some time and sets an auto-schedule accordingly. With its sensors, algorithms, and your phone’s location, it helps you save energy when there is no one at home. Besides, its geo-fencing technology prevents it from slipping into Away mode when you or any of your family member is present at home.

It represents a new feature called Farsight that uses far field technology to light up the thermostat and display temperature, weather, and time. The display is so strong that you can read the details on it from across the room. Moreover, you can also personalize it by selecting a digital or analog clock face.

This remote thermostat is designed to work with your Nest devices and also other smart home devices. It is intelligent enough to communicate with other devices and operate them even in your absence. You can even change the temperature of the thermostat while sitting in any corner via your smartphone, tablet or laptop.

It is available in four different colors – copper, stainless steel, black, and white. You can choose the one that blends with your home décor and looks great in your house. This smart thermostat works with Alexa, but you require a separate Alexa device.

Who should buy it?

People who want to add convenience to their life while saving effectively on their annual heating and cooling costs must get this thermostat.

The Verdict

With a large display screen, auto scheduling, auto-away, energy usage reporting, and a few advanced features, Nest Learning Thermostat is an excellent choice to make.

Price: $208.99
Shop it from Amazon

#4. Lux Products GEO-WH – Best Smart Thermostat Under $100

Lux Products GEO-WH - Best Smart Thermostat Under $100

Lux brings the best Wi-Fi thermostat under 100$ with an attractive design. It boasts a large screen along with a control wheel interface. Furthermore, its free iOS and Android App helps you control it remotely.

This cheap smart thermostat is equipped with geo-fencing technology, i.e. it tells your system when you are close to your home. It higher or lowers the temperature depending on that. Moreover, it is efficient enough to set date, time, and daylight savings automatically. You can also create schedules for conserving energy. Thus, with this thermostat in your house, you can be peace.

The Wi-Fi enables thermostat offers you with three power options – battery-operated, micro-USB, and C wire. You can mount it horizontally as well as vertically. The display will always remain visible. The wheel control provides you the ease to set up functions right from the unit without any need of internet connection.

It is compatible with conventional heat & A/C up to 2-stage heat/cool, heat pumps with up to 2-stage heat/cool, 3-wire heat only hydronic systems, and gas millivolt heaters. You need to buy separate Alexa device for its voice-enabled functionality.

Who should buy it?

People who want to keep track of their energy consumption and a record of who comes and goes from the house in their absence can get this thermostat.

The Verdict

With abilities like changing the target temperature, creating customized schedules, and using geo-fencing technology for saving energy, GEO Wi-Fi thermostat from Lux stands out in the market.

Price: $94.99
Purchase it from Amazon

#5. Tado Alexa Compatible Smart Thermostat Starter Kit

Tado Alexa Compatible Smart Thermostat Starter Kit

With the tado smart thermostat starter kit, you can save up to 31% annually on your heating costs. It also lets you control your house’s heating from anywhere with the tado app on your smartphone.

This thermostat boasts some intelligent skills like geo-fencing, Open Window Detection, and Weather Adaptation. It also enables you to view the insights of the freshness of your home’s air as well as the quality of air outdoors. This helps you maintain a healthy atmosphere at your place.

To add to your convenience, it offers an auto-assist feature that allows you to automate geo-fencing and open window detection features. This thermostat from tado supports various home integration systems and voice control functionalities with Google Assistant, Amazon Alexa, Apple HomeKit, and IFTTT.

Some additional features that this thermostat offers you are multi-room control and hot water control. However, it is not compatible with electric heating.

Who should buy it?

People looking forward to saving energy by taking advantage of outside heat can purchase this thermostat.

The Verdict

Though it is small in size, it is smart and powerful. It is easy to use and can be expanded with the help of Smart Radiator thermostats. However, you will require paying a monthly fee to utilize the best out of it.

Price: £153.98
Buy it from Amazon

#6. Honeywell RCHT8612WF Home T5+ Smart Thermostat for Alexa

Honeywell RCHT8612WF Home T5+ Smart Thermostat for Alexa

The thermostat housing from Honeywell helps you achieve greater comfort at home. You can easily install it without C wire. If your home lacks C wire, you get an optional power adapter along with this smart thermostat that works as a low voltage alternative.

It offers you two options – 7-day flexible scheduling or location-based temperature control. You can select whichever option that is suitable for you. The 7-day scheduling feature enables you to program your thermostat the way you want whereas its geo-fence technology detects your smartphone’s location and adjusts the temperature accordingly.

When there is a need to change the filter, this thermostat with remote sensor sends you alerts. It is also designed to warn you of indoor high temperatures. Honeywell is capable of determining whether your house needs cooling or heating to offer you maximum comfort.

You can even set the fan operation such that it circulates more or less air to maintain a healthy atmosphere in the house. However, this function depends on your wiring configuration.

It works with Apple HomeKit, Amazon Alexa, and Google Assistant. You will need a separate voice-enabled device for utilizing voice assistant functions.

Who should buy it?

People who love to get rewarded for the energy they have saved through different utility rebate programs; this thermostat from Honeywell is a great choice to make.

The Verdict

Though it is priced well, it lacks some advanced features that you get with other expensive models available on the market.

Price: $107.10
Shop it from Amazon

#7. Honeywell Wi-Fi Alexa Enabled Programmable Thermostat Under $100

Honeywell Wi-Fi Alexa Enabled Programmable Thermostat

Honeywell presents the best programmable thermostat under $100 for your smart home. It provides you with seven days programming schedule. You get four program periods (morning, daytime, evening, and night) which you can configure to the scheduling scenario you want and add to your comfort.

It boasts a backlit digital display that lets you view time, temperature, and some of the controls. You can also see the local weather with the help of web portal, app or Wink App Ready. However, for Wink App Ready, you won’t require to set up the Wink hub.

This Alexa enabled smart thermostat also works with Google Assistant, Samsung SmartThings, IFTTT, Yonomi, Wink, and Stringify. However, you will need separate devices for voice-enabled functionalities.

This thermostat requires a C wire for its functioning. Without C wire, it will not power up.

Who should buy it?

Those who want to keep it simple and stay away from the mess of learning algorithms or geo-fencing can get this thermostat.

The Verdict

Though it is a Wi-Fi thermostat, it is capable of running the set schedule even when Wi-Fi goes out. It is easy on the wallet and can be programmed via computer or app.

Price: $69.00
Order it from Amazon

#8. Honeywell RTH9580WF Alexa Enabled WiFi Thermostat

Honeywell RTH9580WF Cheap Alexa Enabled WiFi Thermostat

This is comparatively Alexa compatible Wi-Fi thermostat from Honeywell. It poses several smart features, customizable touchscreen, remote access, and easy installation.

You can personalize the touchscreen by changing the screen color such that it perfectly blends with your home décor. It also offers advanced locking features and password options to ensure the security of your system and provide you convenience. You can view the indoor and outdoor temperature, and humidity level on the screen of this thermostat.

This smart thermostat can be programmed manually. You can select the temperature that you prefer when your house is occupied and when it is unoccupied. It is smart enough to learn your heating and cooling cycles. Thus, it will make sure to deliver the right temperature at the right time.

You can program the thermostat and control it directly from your smartphone, tablet, and computer via Honeywell’s app. It also sends you alerts automatically in case of high temperatures and the time when you need to change the filter.

Its installation requires you to have a C wire. This budget thermostat is compatible with heating, cooling, and heat pumps. However, it does not work with heat pumps that possess electric baseboard heat.

Who should buy it?

With a versatile app-controlled interface, this thermostat is ideal for homeowners and business owners who don’t need extra features.

The Verdict

If you need a thermostat that is easily programmable and offers a simple control through an app, it is the perfect piece to grab.

Price: $499.00
Purchase it from Amazon

#9. Emerson Sensi Budget Smart Thermostat for Alexa

Emerson Sensi Smart Thermostat

Emerson brings the best budget smart thermostat for Amazon Echo devices. As it comes pre-programmed with multiple configurations and works with your house’s existing wires, you will find it easy to install. With the Sensi mobile app, you can install it even more quickly. Furthermore, the app also enables you to control the comfort of your house right from the smartphone or tablet.

It uses your smartphone’s location to increase or decrease heating and cooling and ensures that your house is comfy when you arrive. It also avoids wastage of energy when you are not at home. The 7-day flexible scheduling option enables you to customize your house’s comfort by letting you create a schedule that fits in your lifestyle.

This thermostat is designed to detect high temperatures and humidity levels even when you are away. It also determines the working of the system and alerts you in case any fault is found. It can even control the heating and cooling temperatures when you lose the Wi-Fi connection. Moreover, the digital display of this thermostat lets you view time, temperature, fan settings, schedules, and the mode in which the thermostat is working.

This smart thermostat works with Amazon Alexa, Google Assistant, Apple HomeKit, and Wink smart home integration platforms. You can install this thermostat without C wire except for Apple HomeKit.

Who should buy it?

People looking for a smart thermostat upgrade but still wants to keep things simple can pick this thermostat.

The Verdict

Though it costs less than other smart models available on the market, it lacks advanced features like algorithmic learning, remote sensors, and geo-fencing capabilities.

Price: $103.94
Buy it from Amazon

#10. Bosch BCC100 Alexa Controlled Wireless Thermostat

Bosch BCC100 Alexa Controlled Wireless Thermostat

The Alexa compatible wireless thermostat from Bosch easily connects with your Wi-Fi network and lets you control temperature and settings right from your smartphone or tablet. Thus, you can give voice commands to make the thermostat work as you want.

This programmable thermostat features a 5” color display touchscreen that lets you schedule the temperature for added comfort. You can easily navigate across the screen and set your preferences easily. It highlights different features like Weather Access and Vacation Mode. It helps you save on your annual heating and cooling costs.

Moreover, you can control the thermostat from wherever you are with the BCC100 App on your smartphone. It allows you to connect to an unlimited number of thermostats and manage up to 4 schedules per thermostat. It makes use of a user-defined schedule that saves energy by turning itself on and off when you are not at home.

It boasts multi-use compatibility with heat pump (4 heat, 2 cool) or conventional (2 heat, 2 cool) systems, 1–wire internally powered humidifier or dehumidifier, and most of the 24 VAC HVAC equipment.

This budget smart thermostat does not support two wire systems. It requires a C wire for its working.

Who should buy it?

If you are looking for an affordable Alexa-enabled thermostat that even features simple controls, this is the best smart thermostat for Alexa.

The Verdict

It is a serviceable thermostat that you can control from wherever you are, but it is not quite as smart as its competitors.

Price: $144.20
Order it on Amazon

#11. Hive Alexa Controlled Thermostat

Hive Alexa Controlled Thermostat

Hive presents the best smart heating and cooling system that requires C wire for its installation. It works with Amazon Alexa and Google Assistant, but you need separate devices for its voice-enabled functionalities.

You can remotely program your thermostat such that it works effectively when your house is occupied and conserves energy when no one is there. You can also sync it with your Hive Window or Door Sensors to turn on or off the system automatically.

With its Quick Cool or Quick Heat function, you can change your home’s temperature as many times you want in just a single click. Moreover, it lets your set up to 6 daily schedules. There is a dual mode that automatically switches between heating and cooling.

Some additional features that you get with this thermostat are multi-zone compatibility and geo-location. You can control the temperature of about five different zones of your house with this thermostat whereas the geo-location notifies you if you left the thermostat on after while leaving the house.

You can connect the Alexa device to the Hive App to integrate voice-enabled functionality. In addition to this, you can choose from pre-set automation or create a schedule of your own for your convenience.

Who should buy it?

People who want to heat or cool their home intelligently without any efforts can get this high-profile smart thermostat.

The Verdict

Though it shows a wide range of compatibility with Hive’s own-brand smart home products, it is not quite good with third-party alternatives.

Price: $144.99
Purchase it on Amazon

1. Things to know about Smart Thermostats before you buy

Smart thermostats offer you a variety of features that keeps your house comfy. These thermostats also help you reduce your heating and cooling costs. So, below mentioned are some key points you need to consider before buying a thermostat.

Most of the thermostats available are equipped with Wi-Fi circuitry. You can connect it with your home network and control it from wherever you want with the respective app on your smartphone or tablet. Some of the models also enable you to operate it from web browsers.

There are some basic controls that thermostats facilitate you. These include increasing or decreasing the temperature, creating a schedule, overriding the created schedule, and turning the system on or off. Some thermostats like Nest can keep track of who comes and goes and create a heating or cooling schedule depending on when you are at home and when you are away.

Some thermostats come with a touch display that enables you to program the thermostat the way you want. Some of them even showcase temperature, current time, and menu settings. If you wish to pay more, Nest will offer you thermostats that can detect your motion and light your way in the dark.

Manufacturers have also designed thermostats with humidity sensors. These sensors send you an alert whenever any high or low humidity level is detected. Some thermostats also display the weather forecast. The ones with room sensors measure the temperature of the room and adjust the temperature accordingly.

If you want some more advanced features, there are models available with geo-fencing technology. They automatically lower the temperature when you leave the house and set a normal temperature when you come back. They do so with the help of your mobile location. You just need to have your phone to utilize this functionality.

One another useful feature that thermostats offer is usage reporting. They are designed to keep track of how your system is running. Some thermostats even offer features like reminders for maintenance, power cycle alerts, vacation scheduling, and more.

So, depending on your choices and budget, you must pick the thermostat accordingly.

2. What else do smart thermostats work with?

There are many thermostats available that are compatible with your smart home devices. So, if you own smart home gadgets, then you must prefer to buy such thermostats. Nest thermostats work great with Nest devices as well as some of the third-party devices.

See to it if the thermostat you are purchasing possesses IFTTT feature. It allows you to trigger a thermostat by other IFTTT-enabled devices or services. Let’s say; you can create an applet that turns on your porch light when the thermostat reaches a specific temperature.

Many thermostats support voice assistants like Amazon Alexa, Google Assistant, and Siri. It enables you to control your thermostat directly with your voice. Ecobee 4 comes with in-built Alexa voice control.

3. What is ‘C’ wire?

As many thermostats are available with Wi-Fi capabilities so that you can manage them right from an app, one difficulty you might face is setting these thermostats with the Wi-Fi. This is where ‘C’ wire comes into the role.
Also called as Common wire, the C wire is a low-voltage wire that every Wi-Fi thermostat need for the working of their advanced features.

If you have a smart home, there would be a C wire already installed, but old houses lack this. So, if you buy the latest thermostats with Wi-Fi capacities, you need to have a C wire.

4. Which thermostat won’t need a C wire?

If you don’t have C wire installed in your system, below are some thermostats that work without C wire.

5. How to install a Wi-Fi thermostat without C wire?

If you haven’t got a C wire, follow the below given steps to install a Wi-Fi thermostat without a C wire.

  1. You need to buy a Power Extender Kit (PEK) as you do not have C wire.
  2. Turn off the master switch of your circuit box before you start the installation to avoid unwanted accidents.
  3. Take away the old thermostat cover from the wall.
  4. For safety measures in future, click a picture of the wires that are located on the back of your old thermostat.
  5. Go to your HVAC system along with PEK, tools, wire labels, and your smartphone. Open the cover of HVAC and take a picture of the wires connected on the control board.
  6. Label the wires as R, Y, G, and W for your convenience.
  7. Disconnect these wires from the control board and re-connect them to the matching grey terminal blocks on the PEK.
  8. Connect the five white wires coming out of the PEK to the corresponding
  9. terminals on the control board.
  10. Mount the PEK on the HVAC system and go to your newly bought thermostat.
  11. Label the wires of old thermostat before you disconnect them.
  12. After removing your old thermostat cover, pull the wires in the middle of the back plate via a hole.
  13. Now, attach the wires to the wall in this order – R/Rc/Rh Rc, G/C, Y PEK
  14. Press the thermostat back into the back plate and turn on your HVAC system. Your thermostat is ready to work.

6. ecobee4 vs ecobee3 Lite

PropertiesEcobee 4Ecobee 3 Lite
Dimensions4 x 4 x 14 x 4 x 0.8
Audio & Voice RecognitionIt comes with in-built Amazon Alexa. Thus, you can give direct voice commands to control it.It can be controlled with your voice but you will require a separate Amazon Alexa or Google Home device to enable its voice functionality.
Room SensorsRoom sensors keep a track of your room’s temperature and control it on its own. You get one room sensor for free with ecobee4.If you want your ecobee3 Lite to maintain your room’s temperature, you need to buy room sensors separately.
Smart Home IntegrationIt works great with built-in Alexa voice service, Apple HomeKit, Smart Things, IFTTT.It works with Amazon Alexa devices, Apple HomeKit, Smart Things, IFTTT, and Wink.
Geo-fencing CapabilityEcobee4 is capable to automatically lower the temperature when you leave your house and set it to normal when you are back. It does this by using your smartphone location.
Ecobee3 Lite does not support any such feature.
LED light barWith its motion sensor, ecobee4 detects you whenever you pass beneath it and lights your way in the dark.You do not get any such facility with ecobee3 Lite.
Sensing AbilitiesEcobee4 demonstrates high sensing abilities.The sensing abilities of ecobee3 Lite are quite lower.
HVAC SystemIf you have a complicated HVAC system, ecobee4 is the best thermostat to buy.As ecobee3 Lite does not support added accessories, it won’t be much suitable for your complex HVAC system.
Compatible HVAC devicesHeat pumps, electric systems, oil systems, gas systems, ventilators, humidifiers, and dehumidifiers.Lacks terminals for ventilators, humidifiers, and dehumidifiers.
Who should buy it?People who want advanced compatibility i.e. those who have a complicated HVAC system or additional accessories like humidifiers, ecobee4 is the best smart thermostat for them.
Those who love to have built-in voice control as ecobee4 comes with in-built Alexa.
People who have simple HVAC systems and do not want to spend much on a thermostat, ecobee3 Lite is the best deal to have.
As it is a bit compact in size than ecobee4, people who want a smaller unit can go for ecobee3 Lite.

#7. ecobee4 vs Nest Learning

PropertiesEcobee 4Nest Learning Thermostat
Audio & Voice RecognitionIt comes with in-built Amazon Alexa. Thus, you can give direct voice commands to control it.
It works with HomeKit-enabled devices, Siri, and Google Assistant.
It requires separate voice-enabled devices for its voice functionality. It works with Amazon Alexa and Google Assistant.
Remote SensorsEcobee 4 detects your room temperature as well as occupancy and adjusts the temperature accordingly. It comes with one room sensor.Nest Learning Thermostat senses only room temperature. You need to buy room sensors separately.
Learns habit over timeEcobee 4 does not possess such a feature.It learns your temperature adjustments needs over a period of time.
Far-field sensorIt has no such features.Nest Learning Thermostat uses the far-field sensor to view time and temperature information from a distance.
Temperature preferencesEcobee 4 enables you to create vacation schedules to save energy when you are away.Nest automates temperature based on your preferences, when you leave the house, and when you come back. You don’t need to set any schedules.
Geo-fencingIt offers this feature only for Android and Apple HomeKit users.It supports geo-fencing based on your phone’s location.
Remote SensorsIt comes with one room sensor.You need to buy room sensors separately.
Wiring LimitationsEcobee 4 works great if your system has more than two wires but no C-wire.Nest Learning Thermostat is a better option if you have a two-wire system.
PowerIt is wired and does not work when the power of your house is gone.It is wired as well as battery-powered. So, if there is a power outage, it continues to work with an internal battery.
Who should buy it?If you own an iPhone and need more customization.
If you own a small house, and don’t want to purchase a separate room sensor, and love to give voice commands without any separate device, ecobee4 is a great shot for you.
If you want to save money on your heating and cooling costs. If you are comfortable with less compatibility and few learning features.

Explore more,

Bring home the best Alexa compatible smart thermostats and add glam to your smart home. Which one amongst the above listed is your favorite or you would love to buy? Your choices and opinions are always welcomed in the comments section.

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