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10 Best 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 offers a user-friendly upgrade from traditional thermostats, especially for those who want to manage their home's temperature with smart technology. It works well with most 24V HVAC systems but requires a C-wire or a separate power adapter, which is important to check before purchasing. Installation is guided through the Alexa app, making it accessible for DIY users, although some basic tools might be needed.
Rating
9.9
Chosen by1,245
Installation
Compatibility
Programmability
Most important from
25945 reviews
#2
Google Nest Learning Thermostat (4th Gen, 2024) with Nest Temperature Sensor - Energy Saving Smart Thermostat - Works with Alexa, Apple HomeKit and Google Home App - Polished Obsidian
The Google Nest Learning Thermostat (4th Gen, 2024) is a smart, energy-saving device that can bring both convenience and efficiency to your home. One of its top strengths is compatibility; it works with most 24V systems common in households, including gas, electric, and heat pump systems, and generally doesn't require complex wiring. This makes it accessible for many users. Installation is relatively straightforward, typically taking around 40 minutes, which is a plus for those who prefer DIY projects. The included Nest Temperature Sensor helps manage hot and cold spots, ensuring that every room can be comfortable, and it integrates well with the Google Home app for easy control and monitoring.
Rating
9.8
Compatibility
Programmability
Smart Features
Most important from
1361 reviews
#3
Honeywell Home Smart Color Wi-Fi Programmable Touch Screen Thermostat, Energy Star, Alexa Ready, White - C-Wire Required, Not Compatible with Line Volt Heating, RTH9600WF
The Honeywell Home Smart Color Wi-Fi Thermostat is a solid choice for anyone looking to modernize their heating and cooling system with smart features. It works well with most forced air systems, heat pumps, and hot water or steam heating, but it won’t work with electric baseboard heat, so it’s important to check your home’s setup first. It requires a C-wire, which means a continuous power source from your HVAC system, and if you don’t have one, you’ll need to add an adapter, making installation a bit more involved for some users.
Rating
9.6
User Interface
Smart Features
Energy Savings
Most important from
19097 reviews
Top 10 Best Thermostats 2025 in the United States
#1
Winner
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: Works with most 24V HVAC systems
Programmability: Schedules up to seven daily time periods
Smart Features: Alexa control; Thermostat Hunches; Humidity sensing
User Interface: 3 touch buttons; Voice and app control
Energy Savings: ENERGY STAR; Saves about $50 yearly
Installation: Guided via Alexa app; drill may be needed
Chosen by 1245 this week
Google Nest Learning Thermostat (4th Gen, 2024) with Nest Temperature Sensor - Energy Saving Smart Thermostat - Works with Alexa, Apple HomeKit and Google Home App - Polished Obsidian
Google Nest Learning Thermostat (4th Gen, 2024) with Nest Temperature Sensor - Energy Saving Smart Thermostat - Works with Alexa, Apple HomeKit and Google Home App - Polished Obsidian
Compatibility: most 24V systems, gas, electric, heat pump
Programmability: learns preferred temperatures and schedules
Smart Features: works with Alexa, Google Home, energy-saving
User Interface: sleek, modern, polished obsidian finish, large display
Energy Savings: 12% on heating, 15% on cooling
Installation: straightforward, around 40 minutes
Honeywell Home Smart Color Wi-Fi Programmable Touch Screen Thermostat, Energy Star, Alexa Ready, White - C-Wire Required, Not Compatible with Line Volt Heating, RTH9600WF
Honeywell Home Smart Color Wi-Fi Programmable Touch Screen Thermostat, Energy Star, Alexa Ready, White - C-Wire Required, Not Compatible with Line Volt Heating, RTH9600WF
Compatibility: Works with most forced air systems
Programmability: Flexible programming with smart features
Smart Features: Alexa, Google, Cortana, IFTTT, app control
User Interface: Customizable color touchscreen, LCD, touchpad
Energy Savings: ENERGY STAR, rebates, demand response
Installation: Needs C-wire or adapter, technical
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, Apple HomeKit
Programmability: Programmable
Smart Features: Auto-Scheduling, Auto-Away Mode, Humidity Detection
User Interface: Color touchscreen, ecobee app, LCD display
Energy Savings: Up to 23% annually
Installation: Optional Power Extender Kit
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Charcoal
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Charcoal
Compatibility: Most home systems without C wire
Programmability: Energy-efficient schedules via Google Home app
Smart Features: Voice commands, HVAC alerts, reminders
User Interface: 2-inch LCD screen
Energy Savings: ENERGY STAR certified, auto turn down
Installation: Screws, steel plate included, may need C wire
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Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready
Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready
Compatibility: Alexa, Google Home, SmartThings
Programmability: Flexible scheduling options
Smart Features: Customizable touchscreen, Smart Response, Energy Star
User Interface: Customizable color touchscreen
Energy Savings: Notable energy savings
Installation: Straightforward, challenging for inexperienced users
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: Siri, Alexa, Google Assistant, HVAC systems
Programmability: Set schedules, save 26% on energy
Smart Features: SmartSensor, air quality monitor, speaker
User Interface: Large, vibrant display
Energy Savings: Save up to 26% yearly
Installation: Power Extender Kit included
Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy Star Certified, C-wire Required, ST75 Black 5.625" x 3.4" x 1.17"
Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy Star Certified, C-wire Required, ST75 Black 5.625" x 3.4" x 1.17"
Compatibility: Boiler, AC, Heat Pump, Furnace
Programmability: programmable
Smart Features: Filter Indicator, Geofence, Alexa, Google, Apple
User Interface: 4.3-inch color touchscreen
Energy Savings: ENERGY STAR, up to 23% savings
Installation: Needs C-wire, app guide, easy terminals
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
Programmability: Auto-Schedule
Smart Features: Home/Away Assist, remote control
User Interface: Simple, clear display, easy app
Energy Savings: Home/Away Assist
Installation: Guides and tools included
#10
Honeywell TH9320WF5003 Wi-Fi 9000 Color Touch Screen Programmable Thermostat, 3.5 x 4.5 Inch, White, 'Requires C Wire"
Honeywell TH9320WF5003 Wi-Fi 9000 Color Touch Screen Programmable Thermostat, 3.5 x 4.5 Inch, White, 'Requires C Wire"
Compatibility: SmartThings
Programmability: Yes
Smart Features: Color changeable background
User Interface: 3.5 x 4.5-inch touch screen
Energy Savings: Potential
Installation: Requires C wire
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Buying Guide for the Best Thermostats
Choosing the right thermostat can make your home more comfortable and help you save energy. The best thermostat for you depends on your heating and cooling system, your daily routine, and how much control you want over your home's temperature. It's important to consider features that make life easier, like scheduling and remote access, as well as compatibility with your HVAC equipment. Thinking about how involved you want to be with programming or whether you prefer technology that 'learns' your habits can help you zero in on the right type.CompatibilityCompatibility refers to whether the thermostat will work with your specific heating and cooling system, such as gas, electric, heat pump, or multi-stage systems. This is crucial because not all thermostats support every type of system. You’ll typically find compatibility listed on the product or in the manual. If you’re unsure about your existing system, you may want to look for thermostats labeled as broadly compatible or consult with someone knowledgeable about your HVAC setup.
ProgrammabilityProgrammability determines whether you can set schedules for your heating and cooling preferences. Non-programmable thermostats are simple and keep temperatures steady until you change them. Programmable models can adjust the temperature at different times of the day and days of the week, reducing waste and saving energy. If you have a regular schedule, a basic programmable unit may be enough; if your routine varies, look for thermostats with more flexible scheduling options.
Smart FeaturesSmart features include Wi-Fi connectivity and integration with apps or voice assistants, allowing you to control your thermostat remotely and take advantage of automated energy-saving features. Some smart thermostats even learn your routine and adjust automatically. If you travel often, want to control your home while away, or enjoy using your phone or voice to manage devices, these features can be a big plus. If you prefer simplicity and don't want more gadgets, a non-smart thermostat works well.
Ease of UseEase of use covers how simple it is to operate the thermostat, including the layout of controls, display clarity, and how straightforward it is to set schedules or change settings. Some models have touchscreens, large numbers, or intuitive menus, while others rely on buttons and simpler displays. Think about whether everyone in the household will be comfortable using the device, and consider choosing a model that matches your comfort with tech and your vision needs.
Energy Saving FunctionsEnergy saving functions are special features that help you use less energy, like adaptive recovery (which learns how long it takes to reach a target temperature), eco-modes, or energy reports. These can be important if you want to keep your utility bills low while maintaining comfort. If maximizing efficiency is important to you, look for models that offer these features and that have a good reputation for helping users save energy.
InstallationInstallation covers how easy it is to set up the thermostat—some plug into existing wiring quickly while others may need additional wiring or a professional. If you’re comfortable with a screwdriver and working with electrical components, many modern thermostats are designed for easy DIY installation. However, systems that lack a common wire (C-wire) or have complex setups might need an expert. Match your comfort and skills with the installation demands of the model you choose.