Best Smart Thermostats 2025: Complete Buyer's Guide
Smart thermostats are one of the most impactful smart home devices you can install, offering significant energy savings, remote control, and intelligent automation. After extensive testing and research, we've compiled this comprehensive guide to the best smart thermostats available in 2025.
Quick Picks
- 🏆 Best Overall: Google Nest Learning Thermostat - 3rd Gen (2015) - Programmable Smart Thermostat for Home - Works with Alexa - Stainless Steel
- 🔥 Best for Apple HomeKit: New 2022! ecobee Smart Thermostat Enhanced Compatible with Alexa and Apple Home Kit
🏆 Best Overall: Google Nest Learning Thermostat - 3rd Gen (2015) - Programmable Smart Thermostat for Home - Works with Alexa - Stainless Steel
The Google Nest Learning Thermostat - 3rd Gen (2015) - Programmable Smart Thermostat for Home - Works with Alexa - Stainless Steel The Nest Learning Thermostat is a smart thermostat that learns your schedule and programs itself to help save energy. You can control it from anywhere...

Key Features:
- No more programming: With Auto-Schedule, the Google Nest Learning Thermostat learns from you and programs itself..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
- Home/Away Assist: don't heat or cool an empty home. Home/Away Assist adjusts the temperature after you leave.
- Remote control: Control your thermostat from anywhere using the Nest app.
- Know more, save more Check your Energy History to see how much energy you use and why.
- Look for the Leaf: The Nest Leaf appears when you choose a temperature that saves energy.
Product Details:
- Current Price: Check Amazon for current price
- Customer Rating: 4.4/5
- Reviews: See Amazon customer reviews
Why We Love It: The Nest Learning Thermostat is a smart thermostat that learns your schedule and programs itself to help save energy. You can control it from anywhere with the Nest app, and it works with Alexa and Go...
Best For:
- Smart home enthusiasts
- Users seeking reliable automation
- Those wanting premium features
- Value-conscious buyers
🔥 Best for Apple HomeKit: New 2022! ecobee Smart Thermostat Enhanced Compatible with Alexa and Apple Home Kit
The New 2022! ecobee Smart Thermostat Enhanced Compatible with Alexa and Apple Home Kit The all new ecobee's Smart Thermostat Enhanced gives you automatic energy savings and adapts to your lifestyle by adjusting temperature based on occup...

Key Features:
- 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/22°C.
- 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.
- 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.
- 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.
- 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).
Product Details:
- Current Price: Check Amazon for current price
- Customer Rating: 4.5/5
- Reviews: See Amazon customer reviews
Why We Love It: The all new ecobee's Smart Thermostat Enhanced gives you automatic energy savings and adapts to your lifestyle by adjusting temperature based on occupancy, suggesting schedule changes, and optimizing ...
Best For:
- Smart home enthusiasts
- Users seeking reliable automation
- Those wanting premium features
- Value-conscious buyers
Buying Guide
What to Look For
When choosing the best smart thermostats, consider these essential factors:
- Compatibility: Ensure the device works with your existing smart home ecosystem
- Features: Look for the specific features that match your needs and budget
- Installation: Consider whether you prefer DIY setup or professional installation
- Connectivity: Check for reliable Wi-Fi connectivity and app support
- Integration: Verify compatibility with voice assistants and smart home platforms
Price Ranges
- Budget Options: Under $50 - Basic smart features with app control
- Mid-Range: $50-$150 - Advanced features with better build quality
- Premium: $150+ - Top-tier features, premium materials, and advanced AI
Installation Tips
- Check compatibility with your existing setup before purchasing
- Read the manual thoroughly before beginning installation
- Test connectivity in your intended location
- Download the app and create an account before starting
- Consider professional installation for complex setups
Final Recommendations
For best overall, the Google Nest Learning Thermostat - 3rd Gen (2015) - Programmable Smart Thermostat for Home - Works with Alexa - Stainless Steel offers excellent smart home control. For best for apple homekit, the New 2022! ecobee Smart Thermostat Enhanced Compatible with Alexa and Apple Home Kit offers excellent smart home control.
Remember to check current prices and availability on Amazon, as deals and promotions change frequently. Consider your specific needs, budget, and existing smart home setup when making your final decision.
This post contains affiliate links. As an Amazon Associate, I earn from qualifying purchases at no additional cost to you. This helps support our site and allows us to continue providing helpful reviews and recommendations.