ecobee Smart Thermostat Premium with Smart Sensor and Air Quality Monitor - Programmable Wifi Thermostat - Works with Siri…
Best for
Best premium
Amazon rating
Amazon aggregate — one input among many in the Verdict Score
Current price
$259.99
Updated May 14, 2026 · 1 min read
Synthesis sources
Methodology →The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the ecobee Smart Thermostat Premium is positioned as the feature-maximum option in the category. CNET highlights its smart-home and security-system integrations and its built-in Alexa voice assistant; Home Depot's product description and several expert reviewers emphasize the bundled SmartSensor for room-by-room comfort and the onboard air-quality monitor — features no other thermostat in this pool offers natively. r/HomeKit threads specifically praise its HomeKit integration when used as the sole ecobee in a setup.
What reviewers liked
- Only thermostat in the pool with a built-in indoor air-quality monitor
- Includes a SmartSensor in the box for multi-room temperature averaging
- CNET-validated deep smart-home integration including built-in Alexa
- Strong HomeKit/Siri support per r/HomeKit community feedback
Where it falls short
- Most expensive option in the pool at $259, with PCMag noting the Enhanced offers most of the same value for $60 less
- r/ecobee threads report sensor inaccuracy and humidity reading drift
- C-wire required and ecobee customer service draws repeat complaints
- HomeKit automations can misbehave with more than one ecobee on the network
Across the reviewers we read, the ecobee Smart Thermostat Premium is positioned as the feature-maximum option in the category. CNET highlights its smart-home and security-system integrations and its built-in Alexa voice assistant; Home Depot's product description and several expert reviewers emphasize the bundled SmartSensor for room-by-room comfort and the onboard air-quality monitor — features no other thermostat in this pool offers natively. r/HomeKit threads specifically praise its HomeKit integration when used as the sole ecobee in a setup.
The consensus knock is value, not capability. At $259 it is the most expensive pick in this pool, and reviewers including PCMag note that the Enhanced version delivers the same core platform support for $60 less. The same r/ecobee complaints about sensor calibration and customer service that apply to the Enhanced apply here.
For buyers who specifically want the air-quality readings, the included remote sensor, and the speakerphone/Alexa functionality in a single unit, reviewers generally conclude the Premium justifies its price — provided you accept ecobee's reliability profile.
- Feature 1
- Save up to 26% per year on heating and cooling costs. ENERGY STAR certified. Included SmartSensor (50 dollar value) prompts your thermostat to make temperature adjustments ensuring comfort. Compared to a hold of 72°F/22°C
- Feature 2
- Seamlessly connects to ecobee Smart Doorbell Camera (wired) for a live stream of your door and enables two-way talk from your smart thermostat
- Feature 3
- Compatible with 95% of systems. Check your system’s compatibility with our Compatibility Checker on the ecobee support page. The Power Extender Kit (PEK) and Trim Kit is included in the box with everything else you’ll need for an easy DIY install
- Feature 4
- The built-in air quality monitor alerts you to poor air quality, provides tips on how to improve it, and reminds you when it’s time to change your furnace’s air filter
- Feature 5
- Premium materials and advanced engineering mean a large, vibrant display with a cinematic interface, a timeless design, metal siding, and built-in radar technology for occupancy sensing and security
- Feature 6
- Comes with a smart speaker and your choice of Siri* or Alexa built in. Control your home using your voice and listen to your favorite Spotify playlists and podcasts through your thermostat’s speaker. *Apple home hub required to enable Siri
- Feature 7
- Compatible with most 24VAC HVAC systems: furnaces, ACs (2H/2C), heat pumps (2H/2C + 2 stage AUX), boilers, PTACs, and fan coil units (3 fan speeds). Includes Power Extender Kit for C-Wire-less homes, ensuring easy installation
- Feature 8
- If a window or door is left open for 5 minutes ecobee will alert you and automatically pause your heating or cooling. SmartSensor for doors and windows and an ecobee Smart Security subscription required to access this feature
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