The Best Smart Thermostat of 2021


119,961 reviews analysed
Rank Product Name Score
1st Image 29% OFF
Emerson Sensi Wi-Fi Smart Thermostat for Smart Home, DIY, Works With Alexa, Energy Star Certified, S
By Emerson Thermostats
9.1 SCORE View Product
2nd Image Google, T3007ES, Nest Learning Thermostat, 3rd Gen, Smart Thermostat, Stainless Steel, Works With Al
By Google
9 SCORE View Product
3rd Image 25% OFF
Honeywell Home RCHT8612WF T5 Plus Wi-Fi Touchscreen Smart Thermostat w/ 7 Day flexible pr
By Honeywell
8.9 SCORE View Product
4th 1st Image Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy
By Emerson Thermostats
8.8 SCORE View Product
5th Image 17% OFF
ecobee4 Smart Thermostat with Built-In Alexa, Room Sensor Included
By ecobee
8.7 SCORE View Product
6th Image Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy
By Honeywell
8.6 SCORE View Product
7th Image 18% OFF
ecobee3 lite Smart Thermostat, 2nd Gen, Black
By ecobee
8.5 SCORE View Product
8th Image Google, T4000ES, Nest Thermostat E, Smart Thermostat, White
By Google
8.4 SCORE View Product
9th Image ecobee SmartThermostat with Voice Control, Black
By ecobee
8.3 SCORE View Product
10th Image 19% OFF
Honeywell Home Wi-Fi 7-Day Programmable Thermostat (RTH6580WF), Requires C Wire, Works with Alexa
By Honeywell
8.2 SCORE View Product

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Our Promise to Readers

We keep receiving tons of questions of readers who are going to buy Smart Thermostat, eg:

  • What is the best Smart Thermostat for 2019, for 2018 or even 2017 (old models)?
  • What is the best Smart Thermostat to buy?
  • What is the best Smart Thermostat to buy for a Beginner?
  • or even What is the best affordable (best budget, best cheap or even best expensive!!!) Smart Thermostat?…

All of these above questions make you crazy whenever coming up with them. We know your feelings because we used to be in this weird situation when searching for Smart Thermostat.

Before deciding to buy any Smart Thermostat, make sure you research and read carefully the buying guide somewhere else from trusted sources. We will not repeat it here to save your time.

You will know how you should choose Smart Thermostat and What you should consider when buying the Smart Thermostat and Where to Buy or Purchase the Smart Thermostat. Just consider our rankings above as a suggestion. The final choice is yours.

That’s why we use Big Data and AI to solve the issue. We use our own invented, special algorithms to generate lists of the best brands and give them our own Scores to rank them from 1st to 10th.

You could see the top 10 Smart Thermostat of 2019 above. The lists of best products are updated regularly, so you can be sure that the information provided is up-to-date.

You may read more about us to know what we have achieved so far. Don’t hesitate to contact us if something’s wrong or mislead information about Smart Thermostat.

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Last updated on Nov-23,2019 / Affiliate links / Images from Amazon Product Advertising API