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10 Best Smart Thermostats 2025 in the United States
#1
Winner
Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required
The Amazon Smart Thermostat is a solid choice for anyone looking to upgrade from a traditional thermostat to a smart option that helps save money and energy. One of its key strengths is its compatibility with Alexa and Ring, which allows for easy voice control and integration into your smart home ecosystem. The thermostat’s learning capabilities are impressive; it can adapt to your schedule and preferences over time, optimizing temperature settings automatically based on your presence at home. The energy-saving features, including potential rebates from energy providers, make it appealing for those looking to lower utility bills.
Rating
10.0
Chosen by1,124
Energy Reports
Integration with Smart Home Systems
Ease of Installation
Most important from
25336 reviews
#2
New 2025 ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant
The 2025 ecobee Smart Thermostat Essential offers a lot of features that make it a strong contender in the smart thermostat market. One of its biggest strengths is its compatibility with 85% of HVAC systems, which is quite impressive. This means it can likely work with your existing setup. The thermostat also supports major smart home ecosystems like Siri, Alexa, and Google Assistant, making it easy to integrate into a smart home.
Rating
10.0
Compatibility
Learning Capabilities
Remote Access
Most important from
94 reviews
#3
Google Nest Learning Thermostat (4th Gen, 2024) with Nest Temperature Sensor - Energy Saving Smart Thermostat with Adaptive Eco - Works with Alexa and Google Home App - Polished Obsidian
The Google Nest Learning Thermostat (4th Gen, 2024) stands out with its enhanced learning capabilities and broad compatibility. It supports a wide range of heating and cooling systems without needing a C wire for most installations, which simplifies the setup process for many users.
Rating
9.8
Compatibility
Remote Access
Integration with Smart Home Systems
Most important from
751 reviews
Top 10 Best Smart Thermostats 2025 in the United States
#1
Winner
10.0 score
Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required
Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required
Compatibility: Compatible with most 24V HVAC systems.
Learning Capabilities: Adapts to your schedule and preferences.
Remote Access: Alexa app, voice control, Echo device.
Energy Reports: Energy dashboard monitoring.
Integration with Smart Home Systems: Compatible with Alexa and Ring.
Geofencing: Alexa detects when nobody’s home.
Ease of Installation: Guided installation in Alexa app.
Chosen by 1124 this week
New 2025 ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant
New 2025 ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant
Compatibility: 85% of HVAC systems
Learning Capabilities: Auto-Scheduling, Auto-Away Mode
Remote Access: ecobee app
Energy Reports: Yes
Integration with Smart Home Systems: Apple HomeKit, Google Assistant, Alexa
Ease of Installation: Easy DIY setup, PEK required
Google Nest Learning Thermostat (4th Gen, 2024) with Nest Temperature Sensor - Energy Saving Smart Thermostat with Adaptive Eco - Works with Alexa and Google Home App - Polished Obsidian
Google Nest Learning Thermostat (4th Gen, 2024) with Nest Temperature Sensor - Energy Saving Smart Thermostat with Adaptive Eco - Works with Alexa and Google Home App - Polished Obsidian
Compatibility: Wide range of systems
Learning Capabilities: Adapts to schedule and preferences
Remote Access: Google Home app, voice commands
Integration with Smart Home Systems: Alexa, Google Home
Ease of Installation: No C wire needed
ecobee Smart Thermostat Premium with Smart Sensor and Air Quality Monitor - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant
ecobee Smart Thermostat Premium with Smart Sensor and Air Quality Monitor - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant
Compatibility: most 24VAC HVAC systems
Integration with Smart Home Systems: Siri, Alexa, Google Assistant
Geofencing: requires subscription to Smart Security plan
Ease of Installation: Power Extender Kit included
Google Nest Learning Thermostat - 3rd Gen (2015) - Programmable Smart Thermostat for Home - Works with Alexa - Stainless Steel
Google Nest Learning Thermostat - 3rd Gen (2015) - Programmable Smart Thermostat for Home - Works with Alexa - Stainless Steel
Compatibility: Google Assistant, Amazon Alexa, nest
Learning Capabilities: Auto-Schedule feature
Remote Access: Nest app
Energy Reports: Yes
Integration with Smart Home Systems: Google Assistant, Amazon Alexa
Geofencing: Home/Away Assist
Ease of Installation: straightforward
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Honeywell Home RTH9600WF Smart Color Thermostat Energy Star Wi-Fi Programmable Touchscreen Alexa Ready - C-Wire Required, Not Compatible with Line Volt Heating
Honeywell Home RTH9600WF Smart Color Thermostat Energy Star Wi-Fi Programmable Touchscreen Alexa Ready - C-Wire Required, Not Compatible with Line Volt Heating
Compatibility: variety of heating and cooling systems
Learning Capabilities: lacks advanced learning capabilities
Remote Access: control via mobile apps, Alexa, Google
Energy Reports: track usage, receive personalized tips
Integration with Smart Home Systems: Amazon Alexa, Google Assistant, Cortana
Ease of Installation: moderate, C-wire may need professional installation
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow
Compatibility: Various heating and cooling systems
Learning Capabilities: Turns itself down when you leave
Remote Access: Control from phone, laptop, tablet
Integration with Smart Home Systems: Google Assistant, Alexa, Matter-certified
Geofencing: Adjusts based on your location
Ease of Installation: Relatively easy
ecobee Smart Thermostat Enhanced - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - Smart Home
ecobee Smart Thermostat Enhanced - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - Smart Home
Compatibility: wide range of HVAC systems
Learning Capabilities: adjusts temperature based on occupancy
Remote Access: ecobee app on various devices
Integration with Smart Home Systems: Siri, Alexa, Google Assistant
Ease of Installation: user-friendly, around 45 minutes
Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55
Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55
Compatibility: various HVAC systems
Remote Access: via mobile app
Energy Reports: yes
Integration with Smart Home Systems: Alexa, Google Assistant, SmartThings
Ease of Installation: easy DIY installation
#10
8.2 score
EMERSON Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy Star Certified, C-wire Required, ST75W , White
EMERSON Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy Star Certified, C-wire Required, ST75W , White
Compatibility: Alexa, Google Assistant, HomeKit, SmartThings
Learning Capabilities: Flexible scheduling, geofencing, smart alerts
Remote Access: Sensi mobile app
Energy Reports: Provided in the app
Integration with Smart Home Systems: Alexa, Google Assistant, HomeKit, SmartThings
Geofencing: Yes
Ease of Installation: 30 minutes or less
Recommended lists
Top rated
Apple Smart Thermostats
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Buying Guide for the Best Smart Thermostats
Choosing the right smart thermostat can significantly enhance your home's comfort and energy efficiency. Smart thermostats allow you to control your home's heating and cooling systems remotely, learn your preferences, and even save you money on energy bills. To find the best fit for you, it's important to understand the key specifications and how they align with your needs.CompatibilityCompatibility refers to whether the smart thermostat can work with your existing heating and cooling system. This is crucial because not all thermostats are compatible with all HVAC systems. To navigate this, check the specifications of the thermostat to see if it supports your system type, such as central heating, heat pumps, or multi-stage systems. If you have a more complex system, ensure the thermostat can handle it. Your need here is to ensure seamless integration without needing additional equipment or professional installation.
Learning CapabilitiesLearning capabilities refer to the thermostat's ability to learn your schedule and preferences over time. This is important because it can automate temperature adjustments to optimize comfort and energy savings. Thermostats with advanced learning capabilities can adapt to your habits within a few days. If you have a predictable routine, a thermostat with strong learning capabilities can be very beneficial. If your schedule is irregular, you might prefer a model that allows more manual control.
Remote AccessRemote access allows you to control your thermostat from anywhere using a smartphone app. This is important for convenience and energy management, especially if you travel frequently or have an unpredictable schedule. When evaluating this feature, consider the ease of use of the app and whether it is compatible with your smartphone. If you value being able to adjust your home's temperature on the go, prioritize models with robust and user-friendly remote access features.
Energy ReportsEnergy reports provide insights into your energy usage and can help you identify ways to save money. This feature is important for those who are conscious about their energy consumption and want to optimize their usage. Look for thermostats that offer detailed and easy-to-understand reports. If you are keen on tracking and reducing your energy usage, choose a model that provides comprehensive energy reports.
Integration with Smart Home SystemsIntegration with smart home systems means the thermostat can work with other smart devices in your home, such as voice assistants, smart lights, and security systems. This is important for creating a cohesive and automated home environment. Check if the thermostat is compatible with your existing smart home ecosystem, such as Amazon Alexa, Google Assistant, or Apple HomeKit. If you already have a smart home setup, ensure the thermostat can integrate smoothly with your other devices.
GeofencingGeofencing uses your smartphone's location to adjust the thermostat settings when you leave or approach your home. This feature is important for maximizing energy efficiency and comfort without manual adjustments. Thermostats with geofencing can automatically lower the temperature when you leave and raise it when you return. If you have a consistent routine and want to automate temperature adjustments based on your location, look for models with reliable geofencing capabilities.
Ease of InstallationEase of installation refers to how simple it is to set up the thermostat yourself. This is important for those who prefer a DIY approach and want to avoid professional installation costs. Some thermostats come with clear instructions and all necessary components, making them easier to install. If you are comfortable with basic home improvement tasks, choose a model known for its straightforward installation process. If not, consider one that offers professional installation services.