Top 5 Energy-Efficient Smart Thermostats Under $200

In today’s world, energy efficiency is more important than ever, and smart thermostats offer an effective solution for reducing energy consumption while maintaining comfort. For those seeking budget-friendly options, this roundup highlights the top five energy-efficient smart thermostats available for under $200. Each option combines advanced technology with user-friendly features, making it easier for homeowners to manage their heating and cooling systems effectively.
1
Emerson-Sensi-Touch-Wi-Fi-Thermostat
✯ Highly recommended ✯
Emerson Sensi Touch Wi-Fi Thermostat
9.1
Amazon.com
2
ecobee-Smart-Thermostat-Enhanced
Great energy saver
ecobee Smart Thermostat Enhanced
8.9
Amazon.com
3
ecobee-Smart-Thermostat-Premium-with-Sensor
Highly recommended
ecobee Smart Thermostat Premium with Sensor
8.7
Amazon.com
4
Sensi-Smart-Thermostat-ST55
Sensi Smart Thermostat ST55
8.7
Amazon.com
5
Honeywell-Wi-Fi-Smart-Thermostat
Honeywell Wi-Fi Smart Thermostat
8.4
Amazon.com
6
Honeywell-T5-WiFi-Smart-Thermostat
Honeywell T5 WiFi Smart Thermostat
8.4
Amazon.com
7
Google-Nest-Smart-Thermostat---Charcoal
Google Nest Smart Thermostat - Charcoal
8.2
Amazon.com
1

Emerson Sensi Touch Wi-Fi Thermostat

✯ Highly recommended ✯
$106.03 $169.99
PRIMEPRIME
in stock
Amazon.com
Amazon price updated: August 8, 2025 6:51 am
9.1
Highly recommended
The Emerson Sensi Touch Wi-Fi Smart Thermostat combines an aesthetically pleasing touchscreen color display with user-friendly functionality, making it easy for users to monitor and control their home environment. Although it requires a C-wire for installation and has a slight learning curve for Alexa commands, its energy-efficient features and compatibility with smart home systems make it a great choice for modern households.
Benefits
Easy installation and user-friendly interface
Compatibility with Alexa and other smart home systems
Excellent app functionality for remote control and monitoring
Energy-efficient features and Energy Star certification
Aesthetic touchscreen color display with customizable settings
CONS
Requires C-wire for installation
Learning curve for using Alexa commands effectively
The Emerson Sensi Touch Wi-Fi Smart Thermostat blends modern aesthetics with innovative technology, featuring a vibrant touchscreen color display that is not only visually appealing but also highly functional. Designed for effortless control of any home’s HVAC system, it integrates seamlessly with smart home devices like Alexa, allowing users to adjust temperatures via voice commands or through a user-friendly mobile app. With an Energy Star certification, this thermostat also prioritizes energy savings while ensuring data privacy, reassuring users that Sensi protects their personal information. Installation is a breeze thanks to its DIY-friendly features, such as built-in levels and easy-click terminals that cater to all comfort levels. Users rave about its efficient capabilities, including the option to circulate air outside normal heating or cooling cycles, maintaining a consistent indoor climate. With glowing reviews emphasizing its reliability and top-notch customer service support, the Emerson Sensi Touch Thermostat is a smart choice for anyone looking to modernize their home heating and cooling solutions.
Smart Temperature Control, Anytime
  • Touchscreen Color Display
  • Works with Alexa
  • Energy Star Certified
  • Easy DIY Installation
  • Privacy Protection
  • C-wire Required
2

ecobee Smart Thermostat Enhanced

Great energy saver
$164.99 $189.99
in stock
Amazon.com
Amazon price updated: August 8, 2025 6:51 am
8.9
Great energy saver
The ecobee New Smart Thermostat Enhanced offers impressive energy-saving features, compatibility with major voice assistants, and the ability to optimize comfort with its advanced temperature control. However, potential buyers should be aware of the complex scheduling process and the need for clearer installation instructions.
Advantages
Advanced logic for temperature control
Attractive design with a modern display
Easy remote access via app and voice assistants
Historical data tracking for heating and cooling usage
Compatibility with multiple smart home systems
Ability to add external sensors for better temperature management
Energy Star certified for energy efficiency
Cons
Lack of clear installation instructions for various wiring configurations
More complex scheduling process compared to competitors
The ecobee New Smart Thermostat Enhanced is a stylish and advanced solution for managing home temperature while maximizing energy savings. With its ENERGY STAR certification, users can expect to save up to 26% annually on heating and cooling costs, thanks to its intelligent ability to adjust temperatures when homes are empty. The sleek design and user-friendly interface enhance any living space, while the clear display shows indoor humidity levels and outside temperature, ensuring comfort at a glance. This smart thermostat seamlessly integrates with popular voice assistants like Siri, Alexa, and Google Assistant, allowing for remote control and monitoring through the accompanying app or HomeKit. Users appreciate its detailed reports of heating and cooling usage, which provide valuable insights into energy consumption. Despite some installation challenges, many found the overall setup experience to be straightforward, especially for those familiar with DIY projects, making it a great upgrade for any home.
Advanced Comfort Control Features
  • Energy Star certified for energy savings
  • Programmable Wi-Fi connectivity
  • Compatibility with Siri, Alexa, and Google Assistant
  • Automatic temperature adjustments based on occupancy
  • Preheating and precooling for enhanced comfort
  • Potential savings of up to 26% on heating and cooling costs
3

ecobee Smart Thermostat Premium with Sensor

Highly recommended
$219.99 $249.99
in stock
Amazon.com
Amazon price updated: August 8, 2025 6:51 am
8.7
Highly recommended
The ecobee New Smart Thermostat Premium offers impressive energy savings and remarkable smart home integration, making it a top choice for efficient heating and cooling management. Despite a potentially complex setup and the need for additional hardware, users appreciate its precise temperature control and advanced air quality monitoring features.
Advantages
Easy installation with interactive instructions
Excellent integration with smart home devices (Siri, Alexa, Google Assistant)
Adjustable remote sensors that account for occupancy
Precise temperature control with minimal fluctuations
User-friendly app for remote temperature adjustments
High-quality customer service
Enhanced air quality monitoring features
Drawbacks
Installation may require additional hardware (heavy-duty power line, extra sensors)
Initial setup can be complex and may require troubleshooting for connectivity
The ecobee New Smart Thermostat Premium is designed to create a seamless and energy-efficient home environment. With its SmartSensor feature, it effectively targets hot and cold spots in the house, ensuring optimal comfort in the rooms that matter most. Additionally, the built-in air quality monitor provides real-time updates on indoor conditions, enhancing the overall living experience by promoting a healthier atmosphere. Not only does this thermostat support popular voice assistants like Siri, Alexa, and Google Assistant, but it also boasts user-friendly installation and setup. Users have praised its straightforward installation process and responsive app, which allows for easy adjustments and monitoring from anywhere. With the ability to save up to 26% on heating and cooling costs, the ecobee Thermostat combines advanced technology with practicality, making it a top choice for modern households.
Advanced Climate Control Solutions
  • ENERGY STAR certified for energy savings
  • SmartSensor included for optimal temperature control
  • Built-in air quality monitor
  • Programmable Wi-Fi connectivity
  • Compatible with Siri, Alexa, and Google Assistant
  • Significant cost savings on heating and cooling (up to 26% per year)
4

Sensi Smart Thermostat ST55

Amazon.com
8.7
Highly recommended
The Sensi Smart Thermostat offers an impressive combination of easy DIY installation, Wi-Fi connectivity, and compatibility with Alexa for seamless control over home temperature management. While it excels in energy efficiency and user-friendly features, its limited compatibility with other smart assistants and lack of detailed usage data may be drawbacks for some users.
PROS
Easy DIY installation without the need for a C-Wire
Wi-Fi connectivity for remote control via mobile app
Compatibility with Alexa and Google Assistant for voice commands
Programmable settings for customizable heating/cooling schedules
Energy Star certified for improved energy efficiency
Useful reporting features to track AC usage
Manual controls available for non-tech-savvy users
Drawbacks
Limited compatibility with smart assistants other than Google and Alexa
Recent usage data lacks detailed insights on timing
The Sensi Smart Thermostat combines over 100 years of HVAC expertise with modern technology to create an innovative and user-friendly experience. It is designed for easy DIY installation without the need for a common wire in most cases, making it compatible with a wide range of residential HVAC systems. The built-in level and intuitive mobile app guide users step-by-step, ensuring a seamless setup process even for those with minimal technical experience. With enhanced privacy protection, Sensi prioritizes user data by not selling personal information to third parties. Its Energy Star certification ensures efficient energy savings, while compatibility with Alexa allows for easy voice control. The robust mobile app offers features like programmable settings, vacation modes, and temperature compensation, allowing users to maintain comfort and efficiency effortlessly from anywhere.
Intelligent Climate Control Redefined
  • Data Privacy Protection
  • Easy DIY Installation
  • Wi-Fi Enabled
  • Compatibility with Alexa
  • Energy Star Certified
  • Mobile App Control
5

Honeywell Wi-Fi Smart Thermostat

$139.97 $179.99
in stock
Amazon.com
Amazon price updated: August 8, 2025 6:51 am
8.4
Stylish Efficiency
The Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat offers a sleek design with customizable colors and user-friendly features, making it an attractive choice for efficient temperature control. While it excels in energy efficiency and voice compatibility with Alexa, potential buyers should be aware that its installation may require the presence of a “C” wire and could pose challenges in older homes.
Benefits
Attractive design with customizable screen colors
Easy Wi-Fi connectivity and remote control
User-friendly programming options
Energy-efficient, Energy Star certified
Supports voice control through Alexa
Straightforward settings and installation (with proper wiring)
Compact size that minimally protrudes from the wall
CONS
Requires a “C” wire for installation, which may not be available in older homes
Initial installation can be complex and may require professional help if wiring is non-standard
The Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat brings a personalized touch to home climate control with its customizable display options, allowing users to match it to their home décor. Designed for convenience, this sleek thermostat features a straightforward touchscreen interface and comes with a 7-day programmable setting, making it easy for anyone to optimize their heating and cooling schedules while enjoying features like energy-saving rebates. With its connectivity options, the Honeywell thermostat provides users with remote control access via Wi-Fi and compatibility with Alexa, ensuring comfort at their fingertips. While the installation may require a “C” wire for optimal function—which some older homes lack—it is relatively straightforward when proper wiring adjustments are made. Many users appreciate its compact design and the ability to monitor and manage their home’s temperature efficiently, even from afar, making it a reliable addition to any smart home setup.
Smart Control at Your Fingertips
  • Wi-Fi connectivity for remote access and control
  • 7-day programmable scheduling
  • Touch screen interface for easy navigation
  • Energy Star certified for efficiency
  • Compatible with Alexa for voice control
  • Customizable color options to match your décor
6

Honeywell T5 WiFi Smart Thermostat

$79.95 $99.99
in stock
Amazon.com
Amazon price updated: August 8, 2025 6:51 am
8.4
User-Friendly Yet Limited
The Honeywell Home RTH8800WF2022 T5 WiFi Smart Thermostat offers a sleek design and intuitive user interface, making it easy for users to manage their home climate with features like programmable scheduling and geofencing technology. However, it requires a C-wire for installation, which could be a drawback for some, and the adaptive recovery feature may not always align perfectly with personal preferences.
Pluses
Easy installation process
Intuitive app and user interface
Compatible with Alexa for voice control
Geofencing technology for automated temperature control
Stylish design enhances home decor
Energy Star certified for energy efficiency
Flexible 7-day programmable scheduling
Drawbacks
Requires C-Wire for installation, which may complicate setup for some users
The adaptive recovery feature may not align with users’ manual settings, leading to temperature fluctuations
The Honeywell Home RTH8800WF2022 T5 WiFi Smart Thermostat combines modern technology with energy efficiency, allowing users to save between 8 and 16% on their heating and cooling bills through its 7-day programmable scheduling feature. Its sleek touchscreen interface and compatibility with Alexa make it not only a practical addition to any home but also an aesthetically pleasing one. The geofencing technology enables it to adjust temperature settings based on the user’s location, providing comfort and convenience on the go. Installation is straightforward, though it requires a C-wire, which may need special attention for some homes. Users have praised its intuitive app and performance, although some have experienced issues with the adaptive recovery algorithm affecting their desired temperature settings. Despite occasional programming hiccups, the T5 thermostat remains a popular choice among homeowners looking for a smart, energy-saving solution that fits seamlessly into their lifestyle.
Efficiency Meets Smart Technology
  • 7-Day Programmable Scheduling
  • WiFi Connectivity
  • Alexa Compatibility
  • Geofencing Technology
  • Energy Star Certification
  • Touchscreen Interface
7

Google Nest Smart Thermostat – Charcoal

$108.99 $129.99
in stock
Amazon.com
Amazon price updated: August 8, 2025 6:51 am
8.2
Highly recommended
The Google Nest Thermostat is an innovative and user-friendly smart thermostat that offers exceptional energy-saving features and programmable scheduling, making it ideal for personalized home comfort. While it boasts easy installation and compatibility with the Google Home app, potential buyers should note its limited compatibility with certain HVAC systems and the need for a C-wire for optimal setup.
Advantages
Easy installation process
Energy-saving capabilities with Eco Mode
Compatible with the Google Home app for remote access
Ability to set customized schedules and routines
Provides insights on heating trends
Automatic display activation when nearby
Potential rebates from energy companies
Drawbacks
Limited compatibility with certain multi-stage heating and cooling systems
Requires a C-wire for optimal functionality, which may necessitate additional installation steps
The Google Nest Thermostat offers a seamless blend of convenience and energy efficiency, designed to adapt to the user’s lifestyle. With its ability to automatically adjust temperatures when no one is home, it ensures comfort upon return while helping to save on energy bills. Users can manage the thermostat remotely via the Google Home app, making it easy to control settings from anywhere. Installation is user-friendly, and the device is compatible with most heating and cooling systems, provided users follow the wiring instructions carefully. Reviewers appreciate the device’s smart features, including the capability to sense when someone is nearby and switch to Eco Mode when the house is empty. Overall, the Google Nest Thermostat proves to be a valuable addition to modern home automation.
Effortless Climate Control
  • ENERGY STAR certified for energy savings
  • Wi-Fi connectivity for remote access
  • Programmable scheduling for personalized comfort
  • Bluetooth Low Energy for enhanced wireless connectivity
  • User-friendly design for easy installation and operation
  • Compatibility with various HVAC systems

Explore Other Efficient Options

Wyze-Programmable-Smart-WiFi-Thermostat-for-Home-with-App-Control,-Energy-Saving,-Easy-Installation,-Works-with-Alexa-and-Google-Assistant,-Black
Wyze Programmable Smart WiFi Thermostat for Home with App Control, Energy Saving, Easy Installation, Works with Alexa and Google Assistant, Black
$74.99
Amazon.com
Amazon price updated: August 8, 2025 6:51 am

Leading Brands in Energy Savings

  • Ecobee SmartThermostat with Voice Control
  • Known for its energy-saving features, it includes a built-in Alexa speaker and remote sensors to manage temperature more effectively throughout the home
  • Nest Learning Thermostat (3rd Generation)
  • This thermostat learns your habits over time to optimize heating and cooling schedules, thus saving energy and costs
  • Honeywell Home T9 Smart Thermostat
  • Features smart room sensors to detect temperature variations and provides flexible scheduling and energy-saving options
  • Emerson Sensi Touch Smart Thermostat
  • Offers customizable energy-saving schedules, remote access, and is compatible with most HVAC systems. It also has a user-friendly touchscreen interface
  • Wyze Thermostat
  • A budget-friendly option that offers scheduling, remote control through the Wyze app, and energy-saving modes, making it a solid choice for price-conscious consumers
  • Always check current prices and availability, as they can vary

Affordable Smart Thermostats for Optimal Energy Savings

Are there any subscription fees associated with using smart thermostat services?

Yes, there can be subscription fees associated with using smart thermostat services. While many smart thermostats can operate without ongoing fees, certain features, such as advanced energy management capabilities, remote access, or integration with home automation systems, may require a subscription. Additionally, some companies offer premium services that provide enhanced functionalities, which could also come with a monthly or annual charge. It is important for users to review the specific terms and offerings of their chosen smart thermostat brand to determine if any subscription fees apply.

How do the smart thermostats monitor and learn your heating and cooling preferences?

Smart thermostats monitor and learn heating and cooling preferences through a combination of features and technologies. They typically utilize sensors to track the temperature and occupancy in a home, enabling them to understand when residents are present and when they are not.

Additionally, these devices often incorporate machine learning algorithms that analyze historical data about temperature settings and usage patterns. This allows them to recognize a user’s preferences over time. For instance, if a homeowner consistently adjusts the temperature at a particular time of day or during specific seasons, the thermostat can automatically adjust itself to match those preferences without input from the user.

Some smart thermostats also allow users to input specific schedules or temperature settings, which they can then follow and optimize based on the collected data. Many models can be controlled remotely through smartphone apps, providing further flexibility and the opportunity for users to make manual adjustments on the go. Overall, the combination of data analysis, user interaction, and adaptive learning helps smart thermostats efficiently manage home heating and cooling while promoting energy savings.