Your old thermostat is costing you money. Every time you forget to adjust it before leaving for work, or wake up to a freezing bedroom, you're wasting energy and comfort. Smart thermostats are here to change all that.
We've researched the best smart thermostats of 2025 to help you find the perfect model for your home. Whether you're looking for basic WiFi control or advanced AI learning capabilities, these devices will transform how you heat and cool your space.
Why Upgrade to a Smart Thermostat?
- Save 10-23% on energy bills - Most pay for themselves within 1-2 years
- Control from anywhere - Adjust temperature from your phone
- Learn your schedule - Advanced models automatically adapt to your routine
- Room-by-room comfort - Premium systems with sensors ensure every room is just right
- Voice control - Works with Alexa, Google Assistant, and Siri
- Energy reports - Track your usage and get tips to save more
Best Overall: Google Nest Learning Thermostat (4th Gen)
What we like: The gold standard of smart thermostats just got even smarter. The 4th generation Nest Learning Thermostat features a stunning high-resolution display, improved AI that learns your preferences in just a few days, and compatibility with virtually every HVAC system. It automatically creates an energy-efficient schedule and shows you real-time energy usage.
Other things to know: Requires a C-wire for most installations (adapter included). Works with Google Home, Alexa, and Apple HomeKit. Available in four premium finishes. Auto-Away feature detects when you're gone and adjusts accordingly.
Price: $279-$299
Best Value: Amazon Smart Thermostat
What we like: Honeywell reliability meets Alexa intelligence at an unbeatable price. This smart thermostat delivers the essentials—remote control via app, voice commands with Alexa, and automatic temperature adjustments. Incredibly easy to install (most people finish in 30 minutes), and it integrates seamlessly with other Alexa devices.
Other things to know: Works exclusively with Alexa. Simple LED display instead of touchscreen. Many utilities offer rebates that can bring the price under $50. Perfect for renters or first-time smart home users.
Price: $79-$89
Best for Multi-Room Control: Ecobee SmartThermostat Premium
What we like: Comes with a built-in air quality monitor and includes one SmartSensor. These sensors detect temperature and occupancy in different rooms, ensuring your bedroom isn't freezing while the thermostat in the hallway thinks everything is fine. The vibrant touchscreen doubles as a smart speaker with Alexa built-in.
Other things to know: Built-in air quality monitoring tracks VOCs, CO2, and humidity. Supports geofencing. Works with Alexa, Google Assistant, Apple HomeKit, and SmartThings. Can control humidifiers, dehumidifiers, and ventilators.
Price: $249-$269 (includes one sensor)
Best Budget Option: Wyze Thermostat
What we like: Premium features at budget prices. Despite the rock-bottom price, you get app control, 7-day scheduling, energy usage tracking, and compatibility with Alexa and Google Assistant. Clean, simple interface makes it easy for anyone to use.
Other things to know: No learning features—you'll need to set schedules manually. Basic white design only. Limited to basic heating and cooling. Perfect for apartments or rental properties.
Price: $49-$59
Best for Renters: Mysa Smart Thermostat
What we like: Designed specifically for electric baseboard heaters and in-wall fan heaters—the types most commonly found in apartments and condos. Incredibly easy to install and remove without damaging walls. The sleek touchscreen looks premium, and the app provides excellent energy tracking.
Other things to know: Only works with electric heating systems (not central HVAC). Supports multiple units for different rooms or zones. Some electric utilities offer significant rebates.
Price: $129-$149 per unit
Best Premium System: Honeywell Home T10 Pro
What we like: Professional-grade features in a user-friendly package. Includes one Smart Room Sensor and supports up to 20 sensors total, making it ideal for larger homes. The system prioritizes comfort in occupied rooms while saving energy in empty ones. Advanced features include adaptive recovery and smart alerts for maintenance reminders.
Other things to know: Works with all major smart home platforms. Supports multi-stage heating/cooling and accessories. Geofencing works with multiple family members' phones. Available in black or white.
Price: $199-$229 (includes one sensor)
How to Choose the Right Smart Thermostat
Check Your HVAC Compatibility
Before buying, identify your system type and check for a C-wire. Most smart thermostats need continuous power. Take a photo of your current wiring to verify compatibility.
Consider Your Smart Home Ecosystem
- Alexa users: Amazon Smart Thermostat offers the tightest integration
- Google Home users: Nest Learning Thermostat is the obvious choice
- Apple HomeKit users: Ecobee and Honeywell offer excellent support
Think About Room Sensors
If your home has multiple floors or rooms that are always too hot or cold, a system with room sensors (Ecobee or Honeywell T10 Pro) will dramatically improve comfort.
Installation Tips
Most smart thermostats can be installed in 30-60 minutes:
- Turn off power at your breaker before starting
- Take photos of your current wiring
- Label wires as you remove them
- Test the system before mounting
- Connect to WiFi and update firmware
When to call a pro: If you don't have a C-wire and aren't comfortable installing an adapter, or have a complex multi-stage system, professional installation typically costs $100-$200.
The Bottom Line
Smart thermostats are one of the best smart home investments you can make. They pay for themselves through energy savings while making your home more comfortable.
For most people, we recommend the Ecobee SmartThermostat Premium if your budget allows—the included air quality monitoring and room sensor provide excellent value. If you're looking to save money, the Amazon Smart Thermostat delivers the essentials at an unbeatable price.
For Google ecosystem users, the Nest Learning Thermostat remains the most elegant and capable option.
No matter which model you choose, you'll love controlling your home's temperature from your phone—and watching those energy bills drop month after month.
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