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Best Smart Thermostats

We compared 10 smart thermostats and ranked them on a 1–10 score computed from 102,144 customer ratings — driven by what real buyers reported, not editor opinion. Our current #1 pick is Sensi Smart Thermostat, Wi-Fi, DIY, Alexa, Energy Star Certified, ST55, scoring 8.9/10.

Each pick below comes with a data-driven summary plus the pros and cons buyers mention most, so you can choose the best smart thermostats for your needs in minutes.

Shopping adjacent? Best Smart Home Devices and Best Smart Plugs covers the same ground from a different angle.

Data-Driven Ranking
10 products compared
Rating data last refreshed

Our top smart thermostats picks

1

The Sensi Smart Thermostat is generally well-received for its ease of use and integration with smart home systems like Google Home. However, it requires careful setup depending on the type of HVAC system.

Summary written by a language model from real customer reviews. It never affects the score.

PROS
  • Easy installation guided by app
  • Seamless WiFi connection and integration with voice assistants
  • Adjustable temperature offsets to compensate for location discrepancies
CONS
  • Lack of detailed instructions in the box regarding specific HVAC setups
  • Potential issues without a C-wire, necessitating professional setup
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2

The Honeywell Home RTH9585WF Wi-Fi Smart Thermostat is highly regarded for its ease of installation and user-friendly interface, offering a range of features that enhance home comfort and energy efficiency. However, some users note dated app aesthetics compared to competitors like Nest.

Summary written by a language model from real customer reviews. It never affects the score.

PROS
  • Easy installation
  • User-friendly interface suitable even for low-tech individuals
  • Multiple scheduling options and reminders
CONS
  • Older-looking app design relative to other brands
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3

The Google Nest Thermostat is highly praised for its ease of installation and user-friendly interface. It offers significant energy savings through smart scheduling features and remote control capabilities.

Summary written by a language model from real customer reviews. It never affects the score.

PROS
  • Easy to install and set up
  • Efficient energy management with automatic temperature adjustments
  • Modern, sleek design that blends well with home decor
CONS
  • Cost may be a barrier for some users
  • Initial learning period before optimal performance
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4

The Google Nest Thermostat is highly regarded for its ease of installation and use, offering a blend of aesthetic appeal and energy-saving functionality. Users appreciate the intuitive interface and effective learning capabilities that adapt to their heating needs.

Summary written by a language model from real customer reviews. It never affects the score.

PROS
  • Easy installation process
  • User-friendly app with clear instructions
  • Automatic scheduling and efficient energy usage
CONS
  • May require existing technical knowledge for certain setups
  • Initial cost is higher compared to traditional thermostats
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5

The Google Nest Thermostat is praised for its ease of installation and use, as well as its energy-saving features. It offers a blend of aesthetic appeal and smart functionality.

Summary written by a language model from real customer reviews. It never affects the score.

PROS
  • Easy to install and set up
  • Automatic scheduling and temperature adjustments based on user habits
  • Energy-efficient with noticeable savings
CONS
  • Potential learning curve for first-time smart home users
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6

The ecobee Smart Thermostat Essential is generally well-regarded for its ease of installation and use, as well as its compatibility with various smart home devices.

Summary written by a language model from real customer reviews. It never affects the score.

PROS
  • Easy setup and customer support
  • Energy-saving features and programmability
  • Attractive design
CONS
  • Potential need for additional wiring or accessories like the PEK kit
  • Wall mounting requires creative solutions if using existing wires
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7

The Sensi Lite Smart Thermostat is generally well-received for its ease of use and compatibility with smart home devices like Alexa. However, it requires a C-wire and can have initial connectivity issues with newer routers.

Summary written by a language model from real customer reviews. It never affects the score.

PROS
  • Easy to install and use
  • Works seamlessly with Alexa
  • Accurate temperature readings
CONS
  • Requires 2.4GHz WiFi mode for connection
  • May need a C-wire for gas heating systems
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8

The Amazon Smart Thermostat is a high-quality option for those seeking a smart thermostat that integrates well with Alexa and Ring. It offers good value, especially considering rebates can make it free or nearly so.

Summary written by a language model from real customer reviews. It never affects the score.

PROS
  • Cost-effective due to rebates
  • User-friendly setup process
  • Versatile installation options
CONS
  • C-wire requirement may complicate installations for some users
  • Some scheduling issues on older Android devices
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9

The Amazon Smart Thermostat is well-regarded for its value and ease of installation, though some users may face challenges with C-wire requirements. It offers a user-friendly interface and integrates seamlessly with Alexa and other smart home devices.

Summary written by a language model from real customer reviews. It never affects the score.

PROS
  • Cost-effective after rebates
  • User-friendly setup and configuration process
  • Inclusive packaging
CONS
  • C-wire requirement can be challenging for some installations
  • Android scheduling issues on older devices
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10

The vine Smart Thermostat generally receives positive feedback for its ease of installation and use, with many users praising its energy-saving features and compatibility with voice assistants. However, some customers have reported issues with temperature accuracy.

Summary written by a language model from real customer reviews. It never affects the score.

PROS
  • Easy to install and set up
  • Clear Wi-Fi connection and remote control capabilities
  • Energy-efficient scheduling options
CONS
  • Inaccurate ambient temperature readings in some cases
  • Random updates for the outside temperature display
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Quick Comparison

ChoiceRadar ranking of 10 smart thermostats, with score and the most-cited pro and con for each.
ProductScoreBiggest plusMain drawback
Sensi Smart Thermostat, Wi-Fi, DIY, Alexa, Energy Star Certified, ST558.9/10Easy installation guided by appLack of detailed instructions in the box regarding specific HVAC setups
Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen,…8.7/10Easy installationOlder-looking app design relative to other brands
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat -…8.4/10Easy to install and set upCost may be a barrier for some users
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Fog8.4/10Easy installation processMay require existing technical knowledge for certain setups
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow8.4/10Easy to install and set upPotential learning curve for first-time smart home users
ecobee Smart Thermostat Essential - WiFi Thermostat, Energy Star Certified8.4/10Easy setup and customer supportPotential need for additional wiring or accessories like the PEK kit
Sensi Lite Smart Thermostat, WiFi, Alexa, DIY, Energy Star Certified, ST258.1/10Easy to install and useRequires 2.4GHz WiFi mode for connection
Amazon Smart Thermostat, Save money and energy, Works with Alexa and Ring, C-wire required8.1/10Cost-effective due to rebatesC-wire requirement may complicate installations for some users
Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire…8.1/10Cost-effective after rebatesC-wire requirement can be challenging for some installations
vine Smart Thermostat for House, WiFi Thermostats for Home Compatible with Alexa and…8.1/10Easy to install and set upInaccurate ambient temperature readings in some cases

Advertising disclosure: ChoiceRadar is a participant in the Amazon Associates Program. We earn a commission on qualifying purchases made through links on this page, at no extra cost to you. It never affects how products are scored or ordered — see our methodology.

Frequently Asked Questions

What is the best smart thermostat right now?
Sensi Smart Thermostat, Wi-Fi, DIY, Alexa, Energy Star Certified, ST55 is our top-ranked pick, with a ChoiceRadar score of 8.9/10. It leads our ranking of 10 smart thermostats built from real customer-rating data.
How many smart thermostats did you compare?
This ranking covers 10 smart thermostats, drawing on 102,144 customer ratings in total. Scores range from 8.1–8.9 out of 10.
How is the #1 smart thermostat chosen?
Every product here clears a minimum of 100 customer ratings, then we score its full star distribution on a 1–10 scale and rank by that score. Sensi Smart Thermostat, Wi-Fi, DIY, Alexa, Energy Star Certified, ST55 came out on top for this category. The exact formula is published on our methodology page.