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ecobee

Smart Thermostat Premium

ecobee listed $259.99 on its product page on 13 Oct 2026.

Hardware

Hardware for ecobee Smart Thermostat Premium
Display4 in full-color LCD, 540 × 540. Black front, zinc-alloy frame.
Size103.89 × 103.89 × 25.9 mm (4.09 × 4.09 × 1.02 in)
Sensors on the statTemperature, humidity, occupancy radar, proximity radar
Air qualityThe product page says built-in air-quality monitoring. The sensor list above is what the spec sheet names.
RadiosDual-band Wi-Fi (2.4 GHz 802.11 b/g/n, 5 GHz 802.11 a/n/ac), Bluetooth 5.0, 915 MHz for sensors
Power24VAC on C and Rc, up to 3.5 VA. Power Extender Kit included for many homes without a C wire. No batteries.
HVACMost 24V systems: conventional 2H/2C, heat pump 2H/2C plus two auxiliary stages, boilers, PTACs up to 3 fan speeds. One 1-wire or 2-wire accessory.

Software

Software for ecobee Smart Thermostat Premium
VoiceAlexa built in and Siri, per the product page
Works with (spec line)Apple HomeKit, Amazon Alexa, Samsung SmartThings, IFTTT
Also named on the pageGoogle Assistant appears in the ecosystem list above the spec table
MatterNot named on the specification list used for this row. Confirm current certification if Matter is a requirement.
DataAbout 15–20 MB per month, depending on Alexa use

What you buy with it

What you buy with it for ecobee Smart Thermostat Premium
In the boxThermostat, mounting plate, SmartSensor and stand, trim plate, Power Extender Kit, wire labels, screws
Warranty3-year limited warranty
Security extrasDoor sensors and the Smart Security subscription are separate. The included SmartSensor is the room sensor.

Pros and cons

Drawn from the published specifications and what else you have to buy. Not a lab score.

Pros

  • • A room sensor and a Power Extender Kit are in the box.
  • • HomeKit, Alexa, and SmartThings are on the spec line, and Alexa and Siri are built in.
  • • Occupancy radar is on the sensor list, not just a marketing adjective.

Cons

  • • Matter is not on the spec list this row uses. Do not buy it on that assumption.
  • • It is a 24V thermostat. It is the wrong product for line-voltage electric heat.
  • • Security-hub features grow a subscription and more sensors.

Compare inside Climate

A router can be compared with another router. It cannot be compared with a lock, a bulb, or a speaker.

Hands-on writing, separate from the AI summary: read the editorial.

Sources

Spec rows checked 2026-10-13. Street prices change after that date.