The ecobee Smart Thermostat Premium is ecobee’s top thermostat: a touchscreen model with a room sensor in the box, radar occupancy sensing, an air quality monitor and Alexa built in. It lists at $259.99, and sales at major retailers often bring it close to $220.
How fast would the Ecobee Premium pay for itself? Run your numbers in my smart thermostat savings calculator.
Will it work with your system?
- Low voltage only: it runs 24V systems such as gas or electric furnaces, central AC, heat pumps, boilers and fan coils. It won’t run 120V or 240V electric baseboard heat.
- Heat pumps: up to 2 heat and 2 cool stages, plus 2 stages of backup heat.
- Extras: it can also control one humidifier, dehumidifier or ventilator.
- Not sure? Snap a photo of your current thermostat wiring and run it through ecobee’s online compatibility checker before you buy.
How much it saves
ecobee claims savings of up to 26% on heating and cooling. ENERGY STAR puts the average for certified smart thermostats closer to $50 a year. At that rate, the Premium would pay for itself in about 4 to 5 years (my estimate). Many utilities offer rebates that shorten that, so check yours before you buy.
How it compares
| ecobee Premium | ecobee Enhanced | Nest Learning (4th Gen) | |
|---|---|---|---|
| Typical price | $220–$260 | $180–$200 | $240–$280 |
| Room sensors | 1 SmartSensor included | Optional, sold separately | 1 Nest Temperature Sensor included |
| Voice and platforms | Alexa built in; Siri, Google, SmartThings | Alexa, Google, Apple Home (no built-in mic) | Google, Alexa, Apple Home via Matter |
| C-wire | Not needed (adapter included) | Not needed (adapter included) | Usually not needed |
| Best for | Uneven rooms, voice control on the wall | ecobee features without paying for voice | A schedule that builds itself |
See my ecobee Smart Thermostat Enhanced and Google Nest Learning Thermostat reviews.
Want to see other Thermostats? Compare them side by side →
How I researched this: ecobee’s spec page, Best Buy’s listing, Tom’s Guide’s review and ENERGY STAR’s average savings figure. Savings figures are estimates. Prices checked September 29, 2026.
Ecobee Smart Thermostat Premium
ecobee Smart Thermostat Premium review: SmartSensor, radar, air quality monitor and built-in Alexa. Compatibility, real price, savings and alternatives.
Product Brand: Ecobee
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