Want to save on energy bills while keeping your home perfectly comfy? A smart thermostat lets you control heating and cooling from your phone or voice assistant — plus learn your schedule for optimal efficiency.
We’ve reviewed the best smart thermostats on Amazon that combine ease of use, features, and affordability in 2025.
🥇 1. Google Nest Learning Thermostat (3rd Gen) – Best Overall Smart Thermostat
Why we love it:
The Nest learns your schedule and adjusts heating/cooling automatically. It integrates with Google Home and Alexa, has a sleek design, and reports energy savings.
Key Features:
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Auto-schedule learning
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Works with Google Assistant, Alexa, and Apple HomeKit (via Thread)
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Energy history & savings reports
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Remote control via app
Pros:
✅ Intuitive and stylish
✅ Easy DIY installation
✅ Saves energy without sacrifice
Cons:
❌ Pricier than basic models
❌ Apple HomeKit support requires extra setup
⭐ Rating: 4.7/5 from 40,000+ reviews
[🌡️ Click here to shop the best smart thermostats on Amazon]
🥈 2. ecobee SmartThermostat with Voice Control – Best for Built-In Alexa
Why it’s a top pick:
Ecobee adds Alexa voice control inside the thermostat, so you don’t need an extra device. It also supports room sensors for balanced temperatures.
Key Features:
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Built-in Alexa for music & commands
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Remote room sensors included
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Supports Apple HomeKit, Google Assistant
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Smart home integrations & scheduling
Pros:
✅ Voice control without extra gadgets
✅ Smart sensors improve comfort
✅ Easy app control
Cons:
❌ Slightly bulkier than Nest
❌ Higher price point
⭐ Rating: 4.6/5 from 15,000+ reviews
[🌡️ Click here to shop the best smart thermostats on Amazon]
🥉 3. Honeywell Home T9 Smart Thermostat – Best Budget Option with Sensors
Why we recommend it:
Honeywell’s T9 includes sensors to detect occupancy and temperature, making it smart and affordable.
Key Features:
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Works with Alexa, Google Assistant, Apple HomeKit
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Uses room sensors for smart comfort
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Easy touchscreen display
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Energy-saving features
Pros:
✅ Affordable with smart features
✅ User-friendly app
✅ Compatible with most HVAC systems
Cons:
❌ Sensors sold separately
❌ Installation can be tricky for beginners
⭐ Rating: 4.5/5 from 10,000+ reviews
[🌡️ Click here to shop the best smart thermostats on Amazon]
🧠 Smart Thermostat Benefits:
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Save up to 23% on heating & cooling costs
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Control temperature remotely via smartphone
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Integrate with voice assistants (Alexa, Google, Siri)
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Use geofencing to adjust when you leave or return home
🏡 Final Thoughts
Upgrade your comfort and cut energy bills with a smart thermostat:
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Best overall: Google Nest Learning Thermostat
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Best voice & sensor combo: ecobee SmartThermostat
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Budget-friendly smart: Honeywell Home T9
👉 Control Your Home’s Climate Smarter
[🌡️ Click here to shop the best smart thermostats on Amazon]