When it comes to choosing the best smart thermostat, there are a few top contenders in the market. One of the leading brands in this category is the Nest Learning Thermostat. Nest offers a sleek and modern design with a user-friendly interface. This smart thermostat is known for its learning capabilities, where it can adapt to your routine and adjust the temperature accordingly. It also provides energy-saving features and the ability to control it remotely via a smartphone app.
Another popular option is the ecobee SmartThermostat. This device offers a wide range of features, including room sensors that help monitor temperature in different areas of your home. It also has voice control capabilities, allowing you to adjust settings using virtual assistants like Alexa or Google Assistant. The ecobee SmartThermostat focuses on energy efficiency and offers detailed insights into your energy usage.
Honeywell Lyric T6 Pro is another contender in the smart thermostat market. It offers easy installation and compatibility with various HVAC systems. This smart thermostat allows you to create custom schedules and has geofencing capabilities to determine your presence and adjust temperatures accordingly. It also integrates with smart home platforms like Apple HomeKit and Amazon Echo.
Lastly, the Sensi Touch Smart Thermostat is a budget-friendly option that still offers many useful features. It has a touchscreen display and straightforward controls. The Sensi Touch Smart Thermostat allows you to schedule temperature changes and control it remotely. It is compatible with smart home platforms like Amazon Alexa, Google Assistant, and Apple HomeKit.
Ultimately, the best smart thermostat for you will depend on your specific needs and preferences. Consider factors like compatibility with your HVAC system, available features, ease of use, and design when making your decision.
The Best Smart Thermostats for 2025
1
Rating is 5 out of 5
ecobee New Smart Thermostat Enhanced - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - Smart Home
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Save up to 26% per year on heating and cooling costs. ENERGY STAR certified. Automatically adjusts the temperature when you’re away to never heat or cool an empty home. Compared to a hold of 72°F.
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Enjoy comfort without compromise. Smart Thermostat Enhanced preheats or precools your home before you arrive, so it’s the perfect temperature the moment you walk in. Automatically adjusts to your desired temperature when you’re home or sleeping to keep you comfortable day and night. Adjusts the temperature to account for humidity so your home always feels like the temperature you’ve set.
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Easy to install and use every day, ecobee Smart Thermostat Enhanced comes with everything you need for installation. Most people install it themselves in about 45 minutes or less. Use your smart home platform and the ecobee app to control your thermostat from anywhere with your smartphone, tablet, or Apple Watch.
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ecobee Smart Thermostat Enhanced is made with quality materials and designed to last on your wall for over a decade. It’s hardwired so you never have to worry about losing control or replacing batteries. If you run into problems, our dedicated support team is available 7 days a week.
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Add in a SmartSensor which allows you to measure the temperature in rooms that matter most, like the nursery or bedroom. It reads temperature and movement in whatever room it is placed in for complete home monitoring and energy savings (SmartSensor sold separately).
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Compatible with most 24VAC HVAC systems: furnaces, ACs (2H/2C), heat pumps (2H/2C + 2 stage AUX), boilers, PTACs, and fan coil units (3 fan speeds). Includes Power Extender Kit for C-Wire-less homes, ensuring easy installation.
2
Rating is 5 out of 5
Google Nest Learning Thermostat - Smart & Programmable for Home - 3rd Generation - Works with Alexa - Mirror Black
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Programmable smart thermostat that learns your schedule and the temperatures you like and programs itself to help you save energy and stay comfortable
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Home/Away Assist automatically adjusts itself to an Eco Temperature after you leave, so you don’t heat or cool an empty home; remote control lets you change the temperature from anywhere on your phone, laptop, or tablet[1]
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With Energy History, just check your phone to see how much energy you used and why, or use Quick View on the display to reach Energy History, settings, or your schedule; the Nest Leaf appears when you choose a temperature that saves energy
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Smart thermostat with HVAC monitoring, which looks out for your heating and cooling systems; sends an alert if something doesn’t seem right, along with helpful reminders to make maintenance easier[2]
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The Nest Learning Thermostat works with the Nest Temperature Sensor (sold separately) to help make sure a certain room is the exact temperature you want it to be
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Beautifully designed, with polished metal finishes and bright, high resolution display; Farsight shows you the temperature, weather, or time on your thermostat when you walk in the room
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It’s easy to install your thermostat, typically in 30 minutes or less, with everything you need included in the box; compatible with 95% of heating and cooling systems
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Google Nest Learning Thermostat (Stainless Steel) with a Google Authenticity Seal
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Nest Renew makes it simple to support clean energy right from home; it works with your Nest Learning Thermostat[6] to help you automatically prioritize your usage[7] to times when energy is cleaner or less expensive
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Please refer to the product description section below for all applicable legal disclaimers denoted by the bracketed numbers in the preceding bullet points (e.g., [1], [2], etc.)
3
Rating is 4.8 out of 5
Amazon Smart Thermostat – ENERGY STAR certified, DIY install, Works with Alexa – C-wire required
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Smart upgrade - Amazon Smart Thermostat is an easy way to switch from a traditional thermostat and help reduce energy usage.
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Save money - After purchase, Amazon will send you an email with details about rebates that may be available from energy providers in your area. Explore rebates above.
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Save energy - According to EPA estimates, ENERGY STAR certified thermostats save an average of $50 on yearly energy bills.
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Automatic comfort - Alexa can do the programming for you, updating the temperature to keep you comfortable.
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On-the-go control - Let Alexa set the temperature, or set it yourself from anywhere with the Alexa app.
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You can do it - The Alexa app will guide you through the installation process, but customer service is always available.
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Reliable - Made with Honeywell Home Thermostat Technology and backed by 130 years of experience.
4
Rating is 4.9 out of 5
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow
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ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable.Product note: You can also check your system’s compatibility before purchasing a Nest thermostat with our online Nest Compatibility Checker on the Google Nest support page.Connectivity Protocol : Wi-Fi.Connectivity Protocol : Wi-Fi
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The Nest Thermostat is designed to work without a C wire in most homes, but for some systems, including heating only, cooling only, zone controlled, and heat pump systems, you’ll need a C wire or other compatible power accessory. Lock feature: No
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Nest Thermostat turns itself down when you leave, so you don’t waste energy heating or cooling an empty home; easily program an energy efficient schedule in the Google home app on your Android or iPhone
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Remote control lets family members change the thermostat temperature from anywhere on a phone, laptop, or tablet[1]
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Savings Finder looks for more ways your thermostat can help you save, and suggests tweaks to your schedule in the app; check with your energy provider to learn more about rebates and more ways to save on a Nest thermostat
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Smart thermostat with HVAC monitoring, which looks out for your heating and cooling systems; sends an alert if something doesn’t seem right, along with helpful reminders to make maintenance easier[2]
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It’s easy to install your thermostat, typically in 30 minutes or less, with everything you need included in the box; it’s compatible with 85% of heating and cooling systems
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Control the temperature with your voice using smart home devices that work with Google Assistant or Alexa[3]
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Nest Renew makes it simple to support clean energy right from home; it works with your Nest Thermostat[5] to help you automatically prioritize your usage[6] to times when energy is cleaner or less expensive
5
Rating is 4.9 out of 5
New 2023! Honeywell Home RTH8800WF2022, T5 WiFi Smart Thermostat, 7 Day-Programmable Touchscreen, Alexa Ready, Geofencing Technology, Energy Star, C-Wire Required
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High use of the scheduling feature of the T5 thermostat saved customers between 8 and 16% on heating and cooling bills. Dollar savings range based on nationwide average annual single-family detached home's heat and cooling bills; actual savings varies based on consumption.
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Save Energy and Get Rewarded. Check with your energy provider about available energy savings rebates to save on your purchase. Plus, eligible customers can enroll in their local Utility's "DEMAND RESPONSE PROGRAM" which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand.
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7-Day Flexible Scheduling or Location Based Temperature Control. It’s your choice. 7-day scheduling programs your thermostat. Geofence technology helps make you comfortable by using your smartphone’s location to know when you’re away and when you return.
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Auto Home and Away Mode. Enjoy ideal temperatures at home, then save when away.
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ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.
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C-WIRE POWER ADAPTER REQUIRED: Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter.
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Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.
6
Rating is 4.9 out of 5
Emerson Sensi Wi-Fi Smart Thermostat for Smart Home, DIY, Works With Alexa, Energy Star Certified, ST55
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PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties
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SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access, and usage reports
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EASY DIY INSTALLATION: Use the built-in level and step-by-step app instructions for a quick installation. Works with HVAC equipment found in most homes. Common wire (c-wire) is not required in most applications
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SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement
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SIMPLE CONFIGURATION: Looks and feels like a thermostat. Has buttons and fits the same space as a traditional thermostat so you don’t have to patch and paint your walls
Can a smart thermostat be used in conjunction with traditional manual thermostat controls?
Yes, a smart thermostat can be used in conjunction with traditional manual thermostat controls. In many cases, smart thermostats are designed to replace existing manual thermostats and take full control over the heating and cooling system. However, some smart thermostats also offer the option to switch to manual control if desired. This allows users to directly adjust the temperature settings using the thermostat's physical interface rather than using a smartphone or other smart device.
Are there any smart thermostats with advanced energy-saving algorithms?
Yes, there are several smart thermostats with advanced energy-saving algorithms. Some popular examples include:
- Nest Learning Thermostat: It learns your schedule and adjusts the temperature accordingly, saving energy when you're away. It also provides detailed energy usage reports and integrates with other smart devices.
- ecobee SmartThermostat with Voice Control: It uses occupancy detection and room sensors to personalize heating and cooling settings, minimizing energy waste. The energy reports provide insights into usage patterns and help optimize efficiency.
- Honeywell Home T9 Smart Thermostat: It utilizes geofencing technology to detect when you're leaving or returning, adjusting the temperature accordingly. It also provides energy-saving tips and tracks usage patterns for better efficiency.
- Emerson Sensi Touch Wi-Fi Smart Thermostat: It employs geofencing, occupancy detection, and adaptive recovery features to save energy. It also offers energy usage reports and sends alerts for potential savings opportunities.
- Johnson Controls GLAS Smart Thermostat: It uses machine learning algorithms to understand your schedule and optimize energy usage accordingly. It offers energy reports, air quality monitoring, and voice control capabilities.
These thermostats use various techniques like occupancy sensing, learning algorithms, and integration with weather data to optimize energy consumption, ultimately reducing energy bills and environmental impact.
Can a smart thermostat be connected to external sensors for temperature or humidity monitoring?
Yes, many smart thermostats can be connected to external sensors for temperature or humidity monitoring. These external sensors can provide more accurate readings and allow the thermostat to make more precise adjustments based on the conditions in specific parts of a home or building. The thermostats often support wireless connectivity to these sensors, enabling easy installation and data transmission. Some examples of smart thermostats that support external sensor connections include the ecobee SmartThermostat and the Nest Learning Thermostat.
Which smart thermostat offers the most customization options?
The Ecobee smart thermostat offers the most customization options. It allows users to set different heating and cooling schedules for individual rooms, create specific comfort settings, set up geofencing for automatic temperature adjustments, and configure different energy-saving settings. Additionally, it is compatible with various smart home platforms and provides extensive control options through the mobile app and web portal.
What are the advantages of having a smart thermostat with geofencing capabilities?
There are several advantages of having a smart thermostat with geofencing capabilities, including:
- Energy savings: A smart thermostat with geofencing can detect when you are away from home based on your smartphone's location and adjust the temperature accordingly. This helps save energy by avoiding unnecessary heating or cooling when no one is home.
- Increased comfort and convenience: By automatically adjusting the temperature when you're on your way home, a smart thermostat with geofencing ensures you arrive to a comfortable environment. This eliminates the need to manually adjust the thermostat upon arrival, providing greater convenience.
- Customizable settings: Geofencing allows you to set up personalized temperature preferences based on your location. You can define different temperature settings for when you're at home, away, or on your way back, tailoring the heating or cooling to your liking.
- Remote access and control: Many smart thermostats with geofencing capabilities can be controlled remotely through smartphone apps. This enables you to monitor and adjust the temperature settings even when you're not at home, providing flexibility and control over your thermostat.
- Learning capabilities: Some smart thermostats with geofencing have learning algorithms that analyze your patterns and behaviors to automatically adjust the temperature. Over time, they can optimize your settings to maximize energy efficiency and comfort based on your specific needs.
- Integration with other smart home devices: Many smart thermostats can integrate with other smart home devices, such as smart lighting or security systems. Geofencing capabilities allow for seamless coordination between these devices, enabling features like automatically turning off lights or activating security systems when everyone is away from home.
Overall, a smart thermostat with geofencing capabilities offers convenience, energy savings, customization, and improved comfort, making it a valuable addition to any home.
