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10 Best Smart Thermostats 2025 in the United States
#1
Winner
Honeywell Home RTH9600WF Smart Color Thermostat ENERGY STAR Wi-Fi Programmable Touchscreen Alexa Ready - C-Wire Required
The Honeywell Home RTH9600WF Smart Color Thermostat offers a blend of modern functionality and user-friendly features. Its ENERGY STAR certification is a significant advantage for energy savings, allowing users to track usage and receive personalized tips. Compatibility-wise, it supports a variety of heating and cooling systems but is not suitable for line volt heating or heating-only oil furnace systems, which can be a limitation for some households. The requirement for a C-wire can also complicate installation for users whose homes lack this wiring.
Rating
10.0
Chosen by1,144
Compatibility
Remote Access
Integration with Smart Home Systems
Most important from
19479 reviews
#2
Google Nest Learning Thermostat - 3rd Gen - Programmable Smart Thermostat for Home - Compatible with Alexa (White)
The Google Nest Learning Thermostat 3rd Gen is a solid choice for anyone looking to upgrade their home's heating and cooling control with smart features. It works with about 95% of heating and cooling systems, making it a good fit for most homes. One of its key strengths is the learning capability—it studies your temperature preferences and daily schedule, then programs itself to save energy while keeping you comfortable. Remote access is well-developed, allowing you to adjust settings from your phone, tablet, or computer from anywhere. The thermostat provides useful energy reports, showing your usage history and helping you understand when and why energy is consumed. Integration with smart home systems like Alexa and Google Assistant is smooth, enhancing voice control and automation options. The Home/Away Assist feature uses your phone's location to adjust settings automatically when you leave or return, which helps reduce wasted energy. Installation is designed to be straightforward, usually taking around 30 minutes with all necessary tools included.
Rating
9.7
Ease of Installation
Remote Access
Most important from
340 reviews
#3
Google Nest Learning Thermostat (4th gen) + Nest Temperature Sensor (2nd gen) - Silver
The Google Nest Learning Thermostat (4th Gen) is an impressive smart thermostat designed to enhance energy efficiency in your home. Its compatibility with most 24V heating and cooling systems makes it a versatile choice for many households. One of its standout features is its learning capability, allowing it to adapt to your preferences over time. This means it can automatically adjust temperatures based on your habits, promoting energy savings—averaging about 12% on heating and 15% on cooling bills.
Rating
8.8
Compatibility
Remote Access
Integration with Smart Home Systems
Most important from
1761 reviews
Top 10 Best Smart Thermostats 2025 in the United States
#1
Winner
Honeywell Home RTH9600WF Smart Color Thermostat ENERGY STAR Wi-Fi Programmable Touchscreen Alexa Ready - C-Wire Required
Honeywell Home RTH9600WF Smart Color Thermostat ENERGY STAR Wi-Fi Programmable Touchscreen Alexa Ready - C-Wire Required
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
Chosen by 1144 this week
Google Nest Learning Thermostat - 3rd Gen - Programmable Smart Thermostat for Home - Compatible with Alexa (White)
Google Nest Learning Thermostat - 3rd Gen - Programmable Smart Thermostat for Home - Compatible with Alexa (White)
Compatibility: Works with 95% heating/cooling systems
Learning Capabilities: Learns temperature and schedule, self-programs
Remote Access: Adjust settings via phone/tablet/computer
Energy Reports: Shows usage history and consumption
Integration with Smart Home Systems: Supports Alexa and Google Assistant
Geofencing: Uses phone location to auto-adjust
Ease of Installation: Takes about 30 minutes, tools included
Google Nest Learning Thermostat (4th gen) + Nest Temperature Sensor (2nd gen) - Silver
Google Nest Learning Thermostat (4th gen) + Nest Temperature Sensor (2nd gen) - Silver
Compatibility: most 24V heating and cooling systems
Learning Capabilities: adapts to preferences over time
Remote Access: Google Home app
Integration with Smart Home Systems: Amazon Alexa, Google Home
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Fog
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Fog
Compatibility: 85% compatible with most HVAC systems
Wi-Fi and Smart Home Integration: Wi-Fi; Google Assistant, Alexa
Learning and Scheduling Abilities: basic scheduling; no advanced learning
Ease of Installation and Use: easy install; about 30 minutes
Energy Reports and Usage Tracking: energy-efficient schedules; Savings Finder tool
ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant
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
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Up to 34% off
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.
Google Nest Learning Thermostat (4th Gen, 2024) with Nest Temperature Sensor - Energy Saving Smart Thermostat - Compatible with Alexa, Apple HomeKit and Google Home App - Polished Gold
Google Nest Learning Thermostat (4th Gen, 2024) with Nest Temperature Sensor - Energy Saving Smart Thermostat - Compatible with Alexa, Apple HomeKit and Google Home App - Polished Gold
Compatibility: Common heating and cooling systems
Wi-Fi and Smart Home Integration: Alexa, HomeKit, Google, Matter
Learning and Scheduling Abilities: Learns, schedules, adjusts by outdoor temp
Sensor Support: Includes Nest Temperature Sensor 2nd gen
Ease of Installation and Use: No C wire needed, app control
Energy Reports and Usage Tracking: Energy reports, 12% heating, 15% cooling savings
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
Nest T3016US - Programmable Thermostat
Nest T3016US - Programmable Thermostat
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
#10
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
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Buying Guide for the Best Smart Thermostats
Choosing a smart thermostat can make your home more comfortable, save energy, and give you more control over your heating and cooling. The most important thing is to find one that fits your home's system and your lifestyle. It's helpful to understand your needs—for example, whether you want lots of automation, remote access, or simplicity. Think about how tech-savvy you are, how often you're home, and if your household routine is regular or changes often. Once you know your priorities, you can compare devices based on certain key features to find the best fit.CompatibilityCompatibility means whether the smart thermostat will work with your current heating and cooling system. Not all thermostats work with all systems; for example, some only work with low-voltage (24V) systems, while others are made for line voltage or may not support heat pumps or multi-stage heating and cooling. When checking compatibility, you'll usually find lists by HVAC type (like gas, oil, electric, forced air, radiant, etc.). For most people, starting by checking the type of system you have at home is important, and then making sure the thermostat supports it. If you’re not sure, there are usually guides or compatibility checkers online to help, or a professional can advise you.
Wi-Fi and Smart Home IntegrationThis refers to whether the thermostat can connect to your Wi-Fi and work with popular smart home assistants like Alexa, Google Assistant, or Apple HomeKit. Wi-Fi lets you control your thermostat remotely with a smartphone app, so you can change the temperature from anywhere. Integration with smart assistants lets you use voice commands and connect your thermostat to routines or automations. If you already have a smart home ecosystem, choose a thermostat that’s compatible with your devices. If you just want basic remote control, any with Wi-Fi will do.
Learning and Scheduling AbilitiesSmart thermostats offer different levels of automation. Some learn your habits automatically (learning thermostats), adjusting the temperature based on your routine. Others let you set schedules manually, where you decide when the temperature should go up or down. Learning thermostats are good for people with unpredictable schedules or who want a 'set it and forget it' style, while manual scheduling is best for people with regular routines. Think about your household’s pattern and choose the system that matches your lifestyle—one isn't better than the other; it’s about what works for you.
Sensor SupportSensor support means whether the thermostat can use extra room sensors to measure temperature in different parts of your home. This helps if some rooms are hotter or colder than others, letting the system balance heating or cooling more effectively. You can have the thermostat prioritize certain rooms at certain times. If your house has temperature differences between rooms or you want a more even comfort level, look for models that work with additional sensors. If your whole home is pretty consistent in temperature, this might not be necessary.
Ease of Installation and UseHow simple it is to set up and operate the thermostat matters, especially if you're planning to install it yourself or you prefer a user-friendly interface. Some thermostats provide great step-by-step guides and app-based instructions, while others might be a bit more technical or require professional help. Simple menus or touchscreens can also make daily adjustments easier. If you’re comfortable with DIY and technology, you can pick almost any option; otherwise, look for products advertised as easy to install and use.
Energy Reports and Usage TrackingSome smart thermostats can provide feedback on your energy usage, showing monthly reports or making suggestions for saving energy. This information can help you find ways to save on utility bills and be more environmentally friendly. The complexity of these reports ranges from basic usage graphs to detailed breakdowns and recommendations. If seeing and managing your energy consumption is important to you, look for a thermostat that offers in-depth reports. If you're not interested in tracking this, a basic model without this feature will work just fine.