The Contenders

Smart thermostats can save you money on energy bills while improving comfort. We tested the Ecobee Smart Thermostat Premium, Google Nest Learning Thermostat (4th gen), and Honeywell Home T9 to find the best option for different users.

Ecobee Smart Thermostat Premium

Pros

• Built-in Alexa with excellent speaker quality
• Includes one SmartSensor for room-specific temperature
• Works with HomeKit, Alexa, Google Home, and SmartThings
• Air quality monitoring with included sensor
• Sleek glass display with intuitive touch interface

Cons

• Most expensive option at $250
• Larger size may not fit all wall spaces

Google Nest Learning Thermostat (4th Gen)

Pros

• Beautiful redesigned display
• Machine learning adapts to your schedule
• Excellent Google Home integration
• Now supports Matter
• Built-in temperature and humidity sensors

Cons

• No HomeKit support without workarounds
• Requires Google account
• Remote sensors sold separately

Honeywell Home T9

Pros

• Most affordable at around $170
• Includes one Smart Room Sensor
• Works with most HVAC systems
• Alexa and Google Assistant support
• 7-day flexible scheduling

Cons

• No HomeKit support
• Less polished app experience
• Basic learning compared to Nest

Our Recommendation

For Apple users, the Ecobee Smart Thermostat Premium is the clear winner thanks to HomeKit support and excellent build quality. Google Home users should choose the Nest Learning Thermostat for its easy integration. Budget-conscious buyers will appreciate the Honeywell T9's solid feature set at a lower price.