Best Smart Thermostats for Alexa | Buy Nest Learning Thermostat 3rd Gen online


Thermostats serve as a useful tool to adjust the temperature of the house and maintain your HVAC system without having to go down the basement and turn knobs. The problem with basic thermostats is that they are located in a corner of the house and are not accessible remotely. This problem is solved by smart thermostats that are essentially thermostats integrated with smart features such as Wi-Fi for remote connectivity, companion apps to control via smartphone, and issue commands using the voice assistant. I have listed out the Best Smart Thermostats for Alexa that will increase accessibility and keep the temperature levels to your satisfaction.

What are Smart Thermostats?

A smart thermostat makes your heating and cooling more efficient. It learns your usage patterns and it will program the thermostat itself, in order to optimize for maximum comfort and maximum efficiency. A smart thermostat recognizes what temperature makes you most comfortable and it’ll program itself to maintain the desired levels.

It also strives for achieving optimum efficiency by programming schedules based on your usage patterns and tweaking them to your comfort level, which reduces energy consumption in the long run. Along with these features, a smart thermostat can be controlled remotely using an app on your smartphone or by using a compatible voice assistant.

10 Top-Rated & Best Smart Thermostat For Alexa in 2021

Ecobee Smart Thermostat with Voice Control

The Ecobee smart thermostat with Voice Control is an unmatched product in the smart thermometers segment that has improved its inherent flaws and is a reliable replacement for your basic thermostat. The new version bundles a smart sensor that improves the HVAC system tuning by capturing real-time data of room presence. It is one of the few smart thermostats that come with Alexa integrated into the system along with a speaker to issue real-time commands and use Alexa calling, messaging, and Drop-In.

This smart thermostat automatically pauses the HVAC system if the windows or doors of a particular room are open for long. Ecobee smart thermostat with Voice Control comes with a dual-band Wi-Fi card that can take advantage of the extra bandwidth and ensure steady wireless communication. It supports Apple HomeKit, IFTTT, Samsung smart things, Google voice assistant, so it doesn’t matter what ecosystem you are a part of, this smart thermostat will seamlessly integrate with any one of them.

The user experience is improved by the quad-core processor as you can effortlessly navigate with the controls without ever facing a visible lag. For better optimization, users need to place an individual sensor in each of the rooms which can accumulate more data, hence making smarter decisions.

  • Dual-band Wi-Fi support
  • Integration with leading smart home systems
  • Alexa Built-in
  • Expensive

Buy Ecobee Smart Thermostat (USA)

Nest Learning Thermostat v.3

Nest Learning Thermostat v.3 is a circular design smart thermostat that can control your HVAC systems and slowly learn your usage patterns over time. This is the Best Smart Thermostats for Alexa and it is packed with 10 temperature sensors along with humidity, proximity, and ambient light sensor to adjudge human presence and tune the temperatures accordingly.

Nest Learning Thermostat v.3 gets better with time as it learns about your usage, and adapts to keep the temperature levels according to your preference. It uses 2.4 GHz Wi-Fi connectivity and Bluetooth low energy to connect with the sensors and your smartphone.

Nest Learning Thermostat v.3

As far as aesthetics are concerned, Nest Learning Thermostat v.3 is undoubtedly one of the best-looking smart thermostats available in the market with a premium metallic finish. This smart thermostat uses location tracking to pinpoint your location with the help of your smartphone’s GPS and can turn off the heating when no one is in the house. The best method to ensure that your pet does not freeze off or drown in sweat, while you are away from your residence, is to place individual smart sensors in each of the rooms so that it can detect their presence.

Zonal controls are still missing from Nest Learning Thermostat v.3 and it means that you have to individually adjust each radiator. Still, using this smart thermostat is pretty convenient with the Nest app and the Alexa recognizes it and doesn’t pose any hindrance while issuing voice commands.

  • Premium metallic finish
  • Focus on automation
  • Self-learning
  • Alexa support
  • No zonal controls
  • No support for Apple HomeKit

Buy Nest Learning Thermostat on (India)

Buy Nest Learning Thermostat (USA)

Honeywell Home T9 Smart Thermostat

Honeywell Home T9 – The Best Smart Thermostats for Alexa adopts a square-shaped design and is not exceptionally looking like the Nest Thermostat. Nevertheless, it has upped the functionality and has trimmed the overall body size to help it blend in with the wall aesthetics. The color touchscreen is introduced with the Honeywell Home T9 Smart Thermostat which makes the overall experience a lot better than the bleak-looking ones of the older models. This best thermostat embeds a dual-band Wi-Fi card that ensures robust connectivity with the sensors and other smart devices.

Honeywell Home T9 Smart Thermostat

Honeywell Home T9 Smart Thermostat relies on smart sensors to supply data in order to tweak the temperature levels. The smart sensors are less expensive as compared to Ecobee and Nest Thermostat and can measure temperature and detect presence along with detecting humidity. The maximum number of connected sensors is 20 and is lesser than the Ecobee smart thermostat that supports up to 32 sensors.

Users can leave the residence without any worry and the thermostat can use presence detection and tone down the HVAC system unless the users come back. Honeywell Home T9 Smart Thermostat can be managed using the Honeywell Home or Ring apps, which eliminates the need for users to ever visit and adjust the thermostat in person.

Voice assistant support is integrated with the Honeywell Home T9 Smart Thermostat and it can be controlled with Alexa and Google voice assistant, Microsoft Cortona. Apple Homekit support is still missing from the picture which makes it difficult for users invested in the Apple ecosystem. You can even generate monthly consumption reports to see the difference in overall electricity savings.

  • Can connect with 20 smart sensors
  • Supports voice commands via popular voice assistants
  • Monthly consumption reports
  • Apple HomeKit support is missing

Buy Honeywell Home T9 Smart Thermostat on (India)

Buy Honeywell Home T9 Smart Thermostat (USA)

Honeywell RTH8580WF Wi-Fi Thermostat

Honeywell RTH8580WF Wi-Fi Thermostat – Best Smart Thermostats for Alexa is an older smart thermostat from Honeywell that is nowhere near the capabilities of the newer Honeywell T9 smart thermostat. However, it is one of the few smart thermostats that paved the way for the improved versions that followed its release. it is an inexpensive piece of tech that supports 2.4 GHz Wi-Fi connectivity and lets you control your thermostat from your smartphone. The Honeywell RTH8580WF Wi-Fi Thermostat uses a single-color display that is of average size but not as big as the smart thermostat options from Ecobee and Nest.

Honeywell RTH8580WF Wi-Fi Thermostat

Honeywell RTH8580WF Wi-Fi Thermostat allows a seven-day programmable routine that can maintain the temperature of your residence and can also be commandeered from the smartphone app as well. Alexa integration is included along with Samsung SmartThings, Wink, Google Home, and IFTTT for seamless voice control. Users can get prompt alerts about the abrupt change in temperature and can even get information if the thermostat goes offline.

The Honeywell RTH8580WF Wi-Fi Thermostat does not allow you to fine-tune your preferences and comes with inbuilt reprogramming modes and seven-day scheduling. It is also missing the smart sensors compatibility meaning that it cannot make changes depending upon the individual user presence in each room. Nevertheless, it is one of the few smart thermostats that you can get under the 100 USD price range.

  • Alexa integration
  • Easy to setup
  • Prompt alerts
  • Inexpensive
  • Bland design
  • Single color display
  • Does not support remote smart sensors

Buy Honeywell RTH8580WF WIFI Thermostat (USA)

Nest Thermostat E

Nest Thermostat E is among the best smart thermostat available for consumers that is really cheaper than the Nest Learning Thermostat. It is a plastic affair from top to bottom, unlike the latest Nest Learning Thermostat from Google, which uses a metallic body and comes with much better aesthetics. Nest Thermostat E uses an LCD display of high pixel density that is easy to read and navigate but slightly inferior in comparison to the other offerings in a similar price category. This smart thermostat is compatible with 85% of the HVAC systems available in the market, and it will most likely integrate with the HVAC unit installed in your house.

Nest Thermostat E

Like pretty much every other smart thermostat, Nest Thermostat E also relies on smart sensors to control and measure the temperature of other rooms. The smart sensors from Nest can only measure temperature and cannot detect motion or human presence in the room. It makes it a little frustrating because the sensor can only change the temperature as per predefined modes, and cannot spontaneously adapt as per the people present in the room. Alexa and other voice assistant support are present in Nest Thermostat E, and its wide compatibility with numerous HVAC systems makes it a strong contender in the smart thermostat segment.

  • Compatible with multiple HVAC systems
  • Economical
  • Vivid display
  • App control
  • The smart sensor only senses temperature
  • Apple HomeKit support is missing

Buy Google Nest Thermostat E on (India)

Buy Google Nest Thermostat E on (USA)

Google Nest Thermostat

Google Nest Thermostat is a slightly cheaper version of the Google nest thermostat E, that comes with a plastic build and drops the motion sensor from the package. This best smart thermostat has a better display but lacks the availability of a “farsight” feature that immediately wakes up and displays the temperature, whenever it detects your presence in the room. It is an economized version of Nest’s lineup of smart thermostats that gets rid of any additional goodies inside the box (including the backplate). Still, you get a basic smart thermostat that is half the price of its top-end Google Nest Learning Thermostat.

Google Nest Thermostat

Google Nest Thermostat shifts all its accessibility to the Google Home App and you cannot use it with the Nest app like you could with your other Nest devices. It supports scheduling and routines but cannot slowly learn and tune the HVAC systems to your preferences. It is not a self-learning thermostat like most of the smart thermostats mentioned on our list and is just an attempt to upgrade users from a basic thermostat to a connected and remotely operated one.

Alexa and Google Voice Assistant work just fine and you can remotely control this smart thermostat using the Google Home App. It can alert users about the lingering issues in their HVAC systems and can turn off the air conditioning when not in use. If you haven’t yet upgraded to a smart thermostat and are searching for a cheap yet reliable option, Google Nest Thermostat is a recommendable proposition.

  • Affordable
  • Alluring aesthetics
  • Supports voice commands via Alexa
  • No motion sensor
  • Lacks self-learning capabilities

Buy Google Nest Thermostat on (India)

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Hive Active Heating 2

Hive Active Heating 2 is one of the non-touchscreen-enabled smart thermostats that is adequately priced and designed to outshine many alternatives on our list. The Hive Active Heating 2 looks absolutely polished work-of-art that sadly lacks touch controls and comes with five buttons and a turning knob to simply adjust the temperature. There are different models that allow you to control either heating or cooling or both of them and there is a slight price difference in them.

The Hive Active Heating 2 works with Zigbee and Wi-Fi and needs a Hive hub to control your HVAC systems. Rather than directly connecting the thermostat to the HVAC unit, you need to connect it to the hub which communicates with the Hive Active Heating 2 smart thermostat.

Hive Active Heating 2

Unless you are a professional HVAC contractor, chances are very slim that you can install a Hive Active Heating 2 all by yourself. It can be controlled using your smartphone via the Hive app or you can directly ask Alexa to turn the temperature up or down. Setting up schedules is super easy and you can even set useful functions like the Frost mode that prevents your pipes from freezing, or the Holiday mode that shuts the HVAC system and restarts it just before your arrival. As long as you are not super invested in the Apple ecosystem (Apple HomeKit isn’t supported) Hive Active Heating 2 is a stellar choice for a smart thermostat that can be controlled using Alexa.

  • Great design
  • Flawless Alexa integration
  • Inexpensive option
  • Needs professional installation
  • Not a self-learning thermostat

Ecobee3 Lite Smart Thermostat

Ecobee3 Lite is a cheaper option than the latest Ecobee Smart Thermostat with voice control. The stark difference of almost 80 dollars means that you won’t be able to enjoy all the quirks of the premium smart thermostat. Still, the cheaper Ecobee3 Lite smart thermostat is quite a bang for the buck if you want a remotely accessible thermostat with voice control. This best smart thermostat is equipped with a 2.4 GHz Wi-Fi that allows remote connectivity with your smartphone and Alexa.

Alexa, along with a few other voice assistants is supported by the Ecobee3 Lite and you can enjoy scheduling and issuing commands via the app or your smart speaker on the fly.

Ecobee3 Lite Smart Thermostat

Ecobee3 Lite does not have an occupancy sensor which makes it a little less adept at maintaining the temperature as per the presence of people in the room. It can connect with smart sensors but the occupancy sensor will be sorely missed, as it reduces the overall “smartness” and precise temperature control. The display of the Ecobee3 Lite is a tad bit shorter and it doesn’t support Spotify connect, which are a few avoidable shortcomings for the price.

  • 2.4 GHz Wi-Fi
  • Voice assistant support
  • Economical
  • Lacks occupancy sensor

Buy Ecobee3 Lite Smart Thermostat on (India)

Buy Ecobee3 Lite Smart Thermostat (USA)

Honeywell Evohome

Honeywell Evohome is a great HVAC management thermostat that comes with individual sensors to regulate the temperatures of all the radiators available in the house. The catch here is that the Honeywell Evohome thermostat is cheap but after bundling three or four sensors, the price shoots up to a premium smart thermostat level. The individual sensors snap onto the valve and can adjust the knob as you issue the controls from the smartphone app or the Honeywell Evohome hub.

Alexa support is available, although, in a limited capacity, the Apple HomeKit support still remains out of the picture.

Honeywell Evohome

Honeywell Evohome doesn’t have self-learning capabilities and needs to be manually instructed every time you need to adjust the thermostat. The users can set schedules and even copy them into other days and supports different modes that can help you turn down the heating when not required. The motion-sensing capabilities are missing from the sensors and the thermostats which results in overall lesser savings as compared to higher-end models with occupancy sensors.

If you are in search of a smart thermostat that can manage each of your radiators and allows remote control of the system on a budget, Honeywell Evohome is a good choice.

  • Alexa support
  • Supports different heating modes
  • Zonal control
  • Motion-sensing capabilities are missing
  • No Apple HomeKit support

Buy Honeywell Evohome Smart Thermostat (USA)

Tado Smart Thermostat

Tado Smart Thermostat has an identical approach to managing the HVAC systems like the Honeywell EvoHome and comes with four valves sensors to turn the radiator valve into a smart and remotely accessible unit. The sensor and well the central access unit has a display that is much like what you see on a smart speaker. The smart thermostat has capacitive buttons that can be used to increase and decrease temperature and the absence of an LED display forces you to do most of the maneuvering using the smartphone app.

Tado Smart Thermostat

Tado Smart Thermostat doesn’t have a built-in Wi-Fi card and uses a network bridge to connect your router to the thermostat. It makes it way outdated than most smart thermostats on our list and requires an additional ethernet connection to the router to provide wireless connectivity. Tado Smart Thermostat has an optional auto-assist feature that automates the basic tasks such as turning off the heating when you leave, or when the windows or doors are open for a long time.

It is an additional purchase that can be avoided if you are mindful of the reminders that the companion app sends on your smartphone. Alexa, Siri, and Google Voice Assistant are supported, and issuing commands via your smart speaker or the app is pretty convenient and accurate.

  • Intuitive app
  • Wireless connectivity
  • No inbuilt Wi-Fi
  • Bland design

Buy Tado Smart Thermostat (USA)


Ecobee smart thermostat with Voice Control and Nest Learning Thermostats are the Best Smart Thermostats for Alexa and easy picks. If you crave home automation and want to enable smart connectivity to your HVAC systems. There are cheaper options such as the Google Nest Thermostat and Hive Active heating 2 that can save a lot of your budget. Which can be reinvested into buying additional sensors for the smart thermostats.

Keep in mind that the self-learning thermostats are way better if you want to completely automate the HVAC monitoring process over the smart thermostats that require you to manually input the schedule every week or so.


What to consider when buying a Smart Thermostat?

Always compare the feature set to your budget and stretch it slightly to accommodate additional sensors. Individual sensors for each room let your thermostat micro-manage the temperate based on occupancy.

Is it worth getting a Smart Thermostat?

Yes, a smart thermostat can help you save a lot of energy costs and facilitate remote control and monitoring.

Can Alexa run my Thermostat?

If your smart thermostat is compatible with Alexa or has it built-in like the Ecobee Smart Thermostat, it can be easily controlled using voice commands.

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